# How to Choose a Replacement Well Pump Control Box

Source: https://brictale.com/water/pumps/choose-replacement-well-pump-control-box
Published: 2026-08-31
Audience: Homeowner
Published by Brictale, a consumer home-intelligence publication. https://brictale.com

## Short answer

Do not choose a control box by horsepower or wire count alone. Use the exact motor manufacturer and model documentation to establish whether that motor design requires an external box; two-wire and three-wire arrangements are product-family specific. Then record manufacturer, model, horsepower, voltage, phase, frequency, rated amps, and existing box number. Order only when manufacturer or qualified service documentation pairs that exact motor with that exact part number.

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# How to Choose a Replacement Well Pump Control Box

Choose a replacement control box from the motor’s verified identity and the manufacturer’s pairing—not from horsepower, enclosure appearance, or a marketplace listing that says “universal.” First use the exact motor manufacturer and model documentation to establish whether that motor design requires an external box; wire count alone is not a universal rule. In some documented product families, two-wire motors have integral starting components, while three-wire single-phase motors use an external box, but those are not cross-brand rules. Then record the motor or pump manufacturer and model, horsepower, voltage, phase, frequency, rated amperage, and the existing box number. Order only when the manufacturer’s documentation ties that record to an exact candidate part number. If any of those fields are missing or contradictory, stop the electrical decision and hand the record to a qualified well-pump professional or electrician.

This is a buying decision surface, not a wiring procedure. Do not open an energized control box, test live wiring, change terminals, pull a pump, open a well, disconnect pressurized plumbing, manipulate a pressure tank, or enter a pit or confined space as a homeowner troubleshooting step. [Pentair’s pump manual](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) says to disconnect electrical power before installation or service and to match line voltage and frequency to the motor nameplate. [OSHA’s electrical-work standard](https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333) states the general principle that exposed live parts should be deenergized before work. Photograph labels from outside, collect records, and let qualified service personnel perform electrical identification or testing.

That means no opening of an energized control box, even for a quick photograph or a visual capacitor check.

Brictale scope boundary: remote records and a product table cannot determine whether an installation complies with national or local code, whether a permit or inspection is required, or what the authority having jurisdiction will accept. Take those questions to the local building or electrical authority or to a qualified professional before work is planned. [Pentair’s manual](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) directs installers to follow applicable national and local codes and regulations.

## 1. Use a stop condition before you compare products

The safe answer to “which box should I buy?” is sometimes “not enough evidence yet.” A control box may contain starting and running capacitors, a relay, overload protection, terminals, or a contactor. Those components are selected for a motor design and electrical configuration. A box that physically fits the wall and carries the same horsepower can still be the wrong voltage, frequency, control type, motor series, or wire configuration.

Use this order-ready rule:

> A candidate control box is order-ready only when the motor system’s wire configuration, manufacturer and model, horsepower, voltage, phase, frequency, and rated amperage are recorded, the existing box number is captured where one exists, and the manufacturer or qualified service documentation identifies the candidate part number for that motor.

Rated amperage is a cross-check, not a substitute for a part-number lookup. Amps can vary with motor design, service factor, voltage, and operating conditions; do not use a clamp-meter reading or a guessed amp value to reverse-engineer a box. The number you need is the motor’s documented nameplate rating or the exact manufacturer record, with units and context preserved.

The decision has three possible outcomes:

| Record status | What it means | Next action |
|---|---|---|
| Verified | The system identity and configuration agree, and the manufacturer’s table or service record names the candidate box | Give the exact candidate part number to the supplier or service professional for final confirmation |
| Plausible but incomplete | Horsepower and perhaps voltage look right, but the model, wire configuration, frequency, box type, or existing number is missing | Do not order; retrieve the missing record or ask qualified service to identify the motor and controls |
| Contradictory | The nameplate, old box, invoice, and proposed listing disagree | Treat the system as unidentified; stop electrical work and request a site evaluation |

That stop condition is the main protection against the most common shopping error: choosing the closest-looking box and discovering that the only matched field was horsepower.

## 2. Decide whether the system should have an external box

### Two-wire does not mean “use a smaller box”

For Franklin’s 4-inch motor family, the product catalog describes two-wire motors as split-phase designs with integral starting components and says they do not require an external control box. That is a manufacturer-specific design statement, but it establishes the key boundary: a two-wire motor may be designed to keep its starting components inside the motor. [Franklin’s catalog](https://fele.widen.net/content/ox1ghkaech/pdf/M1748_Motors_and_Control_Boxes_Catalog.pdf?u=bt7ctv) also lists two-wire motor models separately from its three-wire models.

Do not generalize that statement to every brand, replacement motor, or control system. A two-wire cable observed at a wall box may not be the same thing as a confirmed two-wire motor configuration: the visible conductors can be part of a larger circuit, and a ground conductor is not a motor lead. The homeowner-safe action is to photograph the label and ask the manufacturer or professional to identify the motor design from its model number.

If the verified motor is a two-wire design that does not use an external box, the correct replacement may be a disconnect, pressure-control component, protection device, or another part—not a three-wire control box. Do not remove a box or bypass it simply because a replacement search is difficult.

### Three-wire commonly means an external motor control box

For Franklin’s single-phase motors, the catalog says Quick Disconnect and Capacitor Run Control boxes are intended for three-wire motors through 1 hp. Its ordering table distinguishes Standard boxes for three-wire motors from 1 through 10 hp from Deluxe boxes for three-wire motors from 1 through 15 hp. The Franklin control-box product page describes the broader family as optimized for three-wire, single-phase motors from 1/3 to 15 hp and distinguishes QD, CRC, Standard, and Deluxe designs. [The manufacturer’s current control-box table](https://www.franklinwater.com/products/submersible-motors-and-control-boxes/submersible-motor-control-boxes/motor-control-boxes/) is useful for understanding the family, but it is not permission to substitute a box across brands.

Pentair’s manual likewise shows single-phase, three-wire pump diagrams with a control box between the supply controls and the yellow, red, and black motor leads. [Its diagram](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) says to follow the specified color coding when connecting the control box. Treat colors and terminal letters as installation details for the exact system, not as a shopping shortcut.

The practical boundary is manufacturer and model first, then documented wire configuration and electrical ratings:

- **Verified two-wire motor:** do not shop for an external motor control box unless the exact manufacturer and model documentation says one is required.
- **Verified three-wire, single-phase motor:** an external box may be required in that product family; verify the exact manufacturer, motor model, box type, and part number before ordering.
- **Unknown or mixed record:** do not count conductors by looking through a cover, do not infer phase from household voltage, and do not order.

{{visual:two-wire-three-wire-boundary}}

## 3. Photograph and transcribe the right records

The label packet is more valuable than a screenshot of a retailer listing. Take clear photographs from outside the equipment, preserving the entire label and the surrounding model context. Do not remove a cover to improve the photograph. If a label is dirty, record only what can be read without touching energized or pressurized equipment; ask service personnel to handle cleaning or inspection.

### Motor and pump records

Capture the motor nameplate if it is accessible without opening the well or pulling the pump. Also capture the pump model label, installation invoice, prior service invoice, and any written well record. The pump model and motor model may be different numbers. Do not assume the pump’s horsepower is the motor’s full electrical identity.

Transcribe these fields exactly, including decimals, hyphens, suffixes, and units:

| Required field | What to record | What not to infer |
|---|---|---|
| Manufacturer | Motor maker and pump maker, if different | That a box from one brand fits another brand because the enclosure looks identical |
| Motor model | Complete model, suffixes, series, and serial if present | That a partial model is enough for a parts lookup |
| Pump model | Complete pump or SKU number | That pump horsepower alone identifies the motor controls |
| Wire configuration | Two-wire or three-wire as documented; record whether the system is single-phase or three-phase | That the ground conductor counts as a motor lead |
| Horsepower | Nameplate hp, including fractional value | That 3/4 hp in a listing means every 3/4 hp motor uses the same box |
| Voltage | Nameplate voltage or voltage range | That nominal household voltage is the motor’s rated voltage |
| Phase | Single-phase or three-phase | That a two-pole breaker proves motor phase |
| Frequency | 50 Hz, 60 Hz, or the listed range | That a 50 Hz and 60 Hz part are interchangeable |
| Rated amps | Nameplate rated amp draw and any service-factor context | That a field measurement replaces the nameplate record |

{{visual:nameplate-record-capture}}

[Pentair’s installation manual](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) specifically provides spaces to record the pump and motor model and serial numbers, horsepower, volts/Hz/phase, and rated amp draw. That is a useful model for a homeowner record even when the installed equipment is not Pentair.

### Existing control-box record

Photograph the control-box label, model number, manufacturer, enclosure markings, wiring diagram, and any readable component labels without opening the box. The box model may be printed on the outside, inside the cover, or on a service label; if reading it requires opening the enclosure, stop and ask a qualified person.

Record:

- the exact box manufacturer and part number;
- QD, CRC, Standard, Deluxe, or another documented box type;
- voltage and frequency printed on the box;
- the motor horsepower range or rating printed on the box;
- whether the box is a factory component listed with the pump or motor;
- the date and reason for the prior replacement, if known;
- any service note identifying a motor replacement or rewiring.

The old box is evidence of what was installed, not automatic proof that it was correct. If the pump was replaced, the box may have been reused. If the box label is missing, that is an information gap—not a reason to choose a visually similar replacement.

## 4. Build the compatibility worksheet

Put the installed record and the proposed candidate beside each other. A product page earns consideration only when it fills every required column. Use “not stated” rather than guessing.

| Compatibility check | Installed record | Candidate record | Pass rule |
|---|---|---|---|
| Manufacturer and motor family | __________ | __________ | Same documented motor family, or the manufacturer explicitly lists the cross-reference |
| Motor model and suffix | __________ | __________ | Exact model or an official compatibility mapping |
| Wire configuration | two-wire / three-wire / unknown | __________ | Candidate control architecture matches; unknown is a stop |
| Phase | single / three / unknown | __________ | Exact phase match |
| Voltage | __________ V | __________ V | Exact documented match or manufacturer-approved range |
| Frequency | __________ Hz | __________ Hz | Exact documented match or approved range |
| Horsepower | __________ hp | __________ hp/range | Candidate table includes the motor rating |
| Rated amps | __________ A | __________ A or protection rating | Cross-check is consistent; discrepancy requires review |
| Existing box number | __________ | replacement for __________ | Official replacement or cross-reference, not “looks similar” |
| Box type | QD / CRC / Standard / Deluxe / other | __________ | Same type unless manufacturer specifies an approved change |
| Candidate part number | __________ | __________ | Exact number copied from the manufacturer or qualified service record |

The **pass rule** is deliberately strict. A blank model suffix, missing frequency, or unclear wire configuration should produce “hold,” not “probably.” The sheet also forces the buyer to separate the motor identity from the box identity. Those are related records, not interchangeable records.

### Worked example: how a manufacturer pairing should look

Franklin’s 96331040 product listing is a useful illustration because it puts the evidence in one place. The listing identifies pump model 10JRD07S4-3W230, 3/4 hp, 230 VAC, 60 Hz, single-phase, 3-wire, 8 A service-factor current, and component control-box part number 2801074915. [See the complete Franklin product record](https://www.franklinwater.com/products/submersible-well-pumps/residential-duty-submersible-well-pumps/3200-series-4-inch-submersible-well-pumps/j-class-3200-series-submersible-well-pump/j-class-3200-3-wire-stainless-steel-sku-collection/96331040/).

That example is not a universal answer for a 3/4 hp pump. It shows the standard of evidence: a complete model, electrical configuration, and a manufacturer-listed component number. If a homeowner has a different pump model, the example’s box number cannot be copied across. If the homeowner has the same pump model but a different motor, a prior retrofit, or a different frequency, the record needs professional review.

## 5. Verify the manufacturer pairing and part number

Start with the motor manufacturer’s current control-box table or the pump manufacturer’s exact product record. Search the complete model number, not just “3/4 hp 230 V control box.” Then confirm the candidate against the fields below in this order:

1. **Motor family and model.** This is the identity anchor. A motor series may use a different start circuit, overload arrangement, capacitor, or relay from another series at the same horsepower.
2. **Wire configuration and phase.** A three-wire single-phase control box is not a replacement for a two-wire motor design or a three-phase starter. A motor lead count alone is not sufficient if the record does not establish the phase and design.
3. **Voltage and frequency.** The candidate must agree with the nameplate and the manufacturer table. Pentair’s manual explicitly requires the supply voltage and frequency to match the motor nameplate.
4. **Horsepower and rating.** Use horsepower as a range or row selector only after the identity and electrical configuration match.
5. **Box type.** QD, CRC, Standard, and Deluxe are different entries in Franklin’s table. CRC includes a run capacitor; Standard and Deluxe serve different motor ranges and control arrangements. A visible capacitor is not enough to identify the type.
6. **Existing box number.** Use it as a cross-check and replacement reference. It is especially valuable when the original motor and box were installed together, but it cannot override a contradictory motor nameplate.
7. **Exact candidate number.** Copy the full part number, including leading zeros and suffixes. Send that number to the supplier or service professional rather than relying on a product title.

[Franklin’s ordering table](https://fele.widen.net/content/ox1ghkaech/pdf/M1748_Motors_and_Control_Boxes_Catalog.pdf?u=bt7ctv) demonstrates why this sequence matters. It lists separate part numbers for the same broad horsepower family at different voltages and frequencies, and separate QD, CRC, Standard, and Deluxe types. It also lists distinct component parts inside some boxes, such as start capacitors and relays. That is evidence of a matched control design, not a universal enclosure.

{{visual:control-box-compatibility-matrix}}

### Keep motor identity separate from pump performance

The pump end and motor end can carry separate identifiers. A pump model may describe stages, flow, discharge size, or a complete assembly, while the motor model controls the electrical interface. A complete pump listing can be helpful because it may name the component motor and control box, as Franklin does for the worked example, but a generic pump label is not enough when a motor has been replaced.

Ask for the service history when the pump has ever been pulled or replaced. The important question is not only “What pump was originally installed?” but also “What motor is installed now, and what box was it paired with?” A box that was correct for the original assembly may not be correct after a motor retrofit. Conversely, a motor model may have several pump-end combinations but still require the same control family. Let the manufacturer or qualified professional reconcile those records.

### Treat frequency as a real field

Many U.S. residential systems are supplied at 60 Hz, but the manufacturer tables can contain separate 50 Hz and 60 Hz parts. Franklin’s catalog shows both 220 V/50 Hz and 230 V/60 Hz entries in its control-box ordering information. Do not replace an unreadable frequency field with “probably 60.” Record the nameplate or have service verify it. If the system is in a location with a nonstandard supply, frequency becomes a hard stop until the motor, supply, and candidate box are reconciled.

### Separate phase from wire count

Wire count and phase answer different questions. A homeowner may see multiple conductors at a box, but the number can include supply conductors, motor leads, level-control conductors, grounding conductors, or conductors in a junction. A three-wire motor in the sources is a three-wire motor design, not a claim that every visible cable with three insulated wires is that design. A three-phase motor also requires a different control approach from a single-phase motor, even if a listing uses the same horsepower.

Do not open a cover to resolve this. The complete motor model and installation record are safer evidence. If those records do not settle the question, the professional should identify the configuration with the appropriate instruments and procedures.

### What the supplier should confirm

Send the supplier or professional one compact packet:

- the motor nameplate photograph and transcription;
- the pump model photograph and transcription;
- the existing box label and part number;
- the completed worksheet;
- the exact candidate part number;
- any prior service note that says the motor or box was changed;
- the question: “Does this candidate replace the control box for this exact motor model and configuration?”

Ask for the answer in writing or on the invoice. If the supplier can confirm only horsepower and voltage, the match is not fully verified. Ask what source table or manufacturer cross-reference supports the recommendation.

## 6. Reject look-alike replacements

The following candidates are not order-ready even when they seem close:

| Listing or observation | Why it is insufficient | Required correction |
|---|---|---|
| Same horsepower, different voltage | The box’s capacitor, relay, overload, or contactor may be selected for another voltage | Match the nameplate and manufacturer row exactly |
| Same horsepower and voltage, unknown frequency | A 50 Hz and 60 Hz entry may be separate parts | Confirm frequency from the nameplate and table |
| Same voltage, unknown wire configuration | Two-wire and three-wire motors can use different starting arrangements | Confirm the motor design and phase from the manual or professional record |
| Same enclosure, different brand | Internal components and terminal assignments may differ | Require an official cross-reference or use the original manufacturer’s part |
| “Universal” or “replacement for many models” | The listing may compress several configurations into a marketing title | Expand the technical specification and require the exact motor mapping |
| Box number from a different pump model | Pump and motor assemblies can share horsepower while using different components | Search the exact pump or motor model, then confirm the box number |
| A box with the same old number but a changed motor | The old box may have been reused or misapplied | Let a professional reconcile the motor and box records |
| A used or salvaged box with unreadable label | Internal components may be degraded or changed | Do not use it as a compatibility reference |

### Why “same horsepower” is a weak match

Horsepower describes the motor’s output class, not the complete starting and protection design. Two motors at the same horsepower can differ by voltage, frequency, phase, service factor, lead configuration, start method, overload arrangement, or manufacturer series. The box may also be designed for a particular pressure-switch, level-switch, or pilot-device arrangement. Franklin identifies these distinctions in its QD, CRC, Standard, and Deluxe descriptions, including a run capacitor in CRC boxes and magnetic line contactors in Deluxe boxes.

This does not mean a homeowner must diagnose every internal component. It means the shopping decision should preserve the manufacturer’s part number. If a listing gives only horsepower and a photograph, it is not a technical match. If it gives a part number but no motor compatibility table, ask the seller for the source documentation or move the question to the manufacturer or qualified professional.

{{visual:lookalike-box-rejection}}

### Do not treat a tripped overload as a box-size signal

A tripped overload can be caused by a fault, a locked or damaged pump, low or abnormal voltage, wiring issues, a control component, or another system condition. Resetting it repeatedly or fitting a larger control box can worsen damage. The correct box rating is established from the motor and manufacturer documentation; the reason for a trip is a separate diagnostic task that requires qualified service when it involves the enclosure or electrical circuit.

Do not infer that a new box is the right repair simply because the pump stopped. A failed pressure switch, supply issue, motor, splice, overload, capacitor, relay, or control component can produce similar symptoms. The buying guide can identify the part record; it cannot diagnose the fault without electrical testing and system inspection.

Likewise, do not use a replacement box to “upgrade” horsepower or change pump performance. The control box follows the motor and control design. It does not turn a motor into a different horsepower, change the pump curve, or make a different voltage supply acceptable.

## 7. Know when the record is insufficient

Stop and escalate when any of these conditions applies:

- the motor or pump manufacturer cannot be read;
- the model is partial, missing suffixes, or inconsistent across records;
- the system may be two-wire or three-wire but the record is based only on an assumed conductor count;
- phase is unknown or the application may be three-phase;
- voltage or frequency is missing from the nameplate;
- the existing box label is missing and no manufacturer cross-reference is available;
- the candidate listing uses “universal,” “fits most,” or “replacement” language without an exact motor mapping;
- the nameplate, existing box, invoice, and proposed candidate disagree;
- the system has been modified, rewired, or repaired by an unknown party;
- the box is wet, damaged, corroded, overheated, buzzing, or showing a tripped overload;
- the homeowner would need to open an enclosure, test a circuit, move a wire, or operate a disconnect to obtain the answer.

The professional handoff should request identification, not just installation. Ask the qualified electrician or well-pump professional to document the motor model, phase, voltage, frequency, rated amps, wire configuration, existing box, measured supply conditions, and the manufacturer-supported replacement part. If the equipment is energized or the records require testing, stop at the label packet.

Do not open the well, pull the pump, enter a pit or confined space, disconnect a drop cable, manipulate a pressure tank, or open pressurized plumbing to recover a model number. Those actions add electrical, pressure, lifting, contamination, structural, or confined-space hazards and do not belong in a homeowner buying step.

{{visual:safe-service-handoff}}

If a professional asks for more information, provide the packet before attempting to create it by disassembly. A photograph of the outside label, the complete invoice, and the original equipment record are useful. A partial label copied from memory is not. When no readable record exists, the safest next action may be a planned identification visit rather than a parts order. That visit can also determine whether the existing box is actually the failed component and whether the system has been modified.

## 8. Hand over a verified order packet

Before the order is placed, the final packet should fit on one page and answer the supplier’s likely questions without a second site visit. Use this checklist:

- [ ] Motor manufacturer and complete model recorded.
- [ ] Pump manufacturer and complete model recorded, if available.
- [ ] Motor serial number recorded, if available.
- [ ] Two-wire or three-wire configuration verified from documentation; ground not counted as a motor lead.
- [ ] Phase recorded as single-phase or three-phase.
- [ ] Horsepower recorded from the motor record.
- [ ] Voltage recorded from the motor nameplate.
- [ ] Frequency recorded from the motor nameplate.
- [ ] Rated amp draw and service-factor context recorded.
- [ ] Existing control-box manufacturer and full part number recorded, or explicitly marked unavailable.
- [ ] Existing box type recorded, if documented.
- [ ] Candidate control-box manufacturer and full part number copied from an official table or professional cross-reference.
- [ ] Candidate’s wire configuration, phase, voltage, frequency, and horsepower range compared with the installed record.
- [ ] Any mismatch or missing field marked “hold,” not guessed.
- [ ] Professional confirmation requested for any electrical test, enclosure opening, rewiring, or ambiguous record.

### What to put on the work order

Write the unresolved question in a way that prevents a parts-only answer: “Identify the installed motor and confirm the manufacturer-approved replacement control box.” Include the photographs, the full worksheet, and the symptom history, but do not ask the professional to infer the part from the symptom alone. Ask them to note whether the system is two-wire or three-wire, single-phase or three-phase, and whether the existing box is a listed match or a prior substitution.

If the final recommendation changes the box type, ask what document supports that change and what other components must be checked. A change from a small QD or CRC family to a Standard or Deluxe family may affect the pressure-switch or pilot-device arrangement, enclosure, terminals, or external contactor requirements. Those are installation and design questions, not decisions to make from a web listing.

For future repairs, store the final motor model, pump model, box part number, installation date, service company, and any replacement reason with the well records. The next homeowner or technician should be able to answer the same question without reopening equipment or guessing from a faded label.

The result is a clear homeowner decision: wire count is a clue to investigate, not a universal box rule. The exact motor manufacturer and model documentation must establish whether an external box is required; then verify wire configuration, phase, voltage, frequency, horsepower, and amps, with the existing box number as a cross-check. If the records cannot carry that chain to one exact part number, the right purchase decision is to stop and obtain qualified service—not to gamble on a look-alike box.

## Evidence

- [Franklin Electric — Motors & Control Boxes Product Catalog](https://fele.widen.net/content/ox1ghkaech/pdf/M1748_Motors_and_Control_Boxes_Catalog.pdf?u=bt7ctv) — Franklin 4-inch submersible motor catalog; this is a Franklin product-family statement, not a universal rule for every manufacturer or motor design.
- [Franklin Electric — Motors & Control Boxes Product Catalog](https://fele.widen.net/content/ox1ghkaech/pdf/M1748_Motors_and_Control_Boxes_Catalog.pdf?u=bt7ctv) — Franklin control-box family descriptions and ranges; exact compatibility still depends on the motor model, voltage, frequency, and manufacturer documentation.
- [Franklin Water — Motor Control Boxes](https://www.franklinwater.com/products/submersible-motors-and-control-boxes/submersible-motor-control-boxes/motor-control-boxes/) — Franklin’s current product-family page; it establishes the manufacturer’s product categories and listed ranges, not compatibility with an unidentified motor or another brand.
- [Franklin Electric — Motors & Control Boxes Product Catalog](https://fele.widen.net/content/ox1ghkaech/pdf/M1748_Motors_and_Control_Boxes_Catalog.pdf?u=bt7ctv) — Franklin single-phase control-box ordering information; the table demonstrates why horsepower alone is not an adequate replacement criterion.
- [Franklin Water — 96331040 J-Class 3200 Series Submersible Well Pump](https://www.franklinwater.com/products/submersible-well-pumps/residential-duty-submersible-well-pumps/3200-series-4-inch-submersible-well-pumps/j-class-3200-series-submersible-well-pump/j-class-3200-3-wire-stainless-steel-sku-collection/96331040/) — One Franklin pump SKU; it is a worked example of a model-specific component pairing, not a recommendation for an unidentified pump.
- [Pentair — 4-inch Submersible Pumps Installation and Operating Manual PN280](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) — Pentair’s 4-inch submersible-pump manual for two- and three-wire, single- and three-phase pumps from 1/2 through 10 hp at 60 Hz; record fields are broadly useful, but exact part matching remains manufacturer-specific.
- [Pentair — 4-inch Submersible Pumps Installation and Operating Manual PN280](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) — Pentair installation and servicing instructions; they support a stop condition for electrical work and do not authorize a homeowner to open or test an energized control box.
- [Pentair — 4-inch Submersible Pumps Installation and Operating Manual PN280](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) — Pentair’s diagrammed 3-wire configurations; wire colors and terminal labels must be confirmed against the exact motor and manual, not inferred from a photograph or assumed universal.
- [Pentair — 4-inch Submersible Pumps Installation and Operating Manual PN280](https://www.pentair.com/content/dam/extranet/web/nam/pentair/manuals/pn280-4inch-submersible-pumps-iom.pdf) — Pentair installation guidance; it supports deferring code, permit, and authority-having-jurisdiction questions to the local authority or a qualified professional.
- [Occupational Safety and Health Administration — 1910.333 Selection and Use of Work Practices](https://www.osha.gov/laws-regs/regulations/standardnumber/1910/1910.333) — OSHA workplace electrical-safety requirements; cited here for the deenergization principle and not as a statement of local residential code or a homeowner qualification.