Century Square Flange Pool Pump Motor, 2 HP, Two Speed, 230V | SQS1202R

Century SQS1202R 2 HP Two-Speed Square Flange Pool Pump Motor, 230V

The Century SQS1202R Pool Pump Motor is a 2.0 HP full-rated, two-speed replacement motor built for compatible pool and spa pumps that use a 48Y square flange, threaded shaft motor on 230V. It is a popular replacement choice when the existing motor is noisy, seized, overheating, tripping the breaker, or no longer starting reliably — and when the owner wants the energy savings of running on low speed.

This motor is commonly used on pump setups that require a 2.0 HP / 2.60 total horsepower, 3450 & 1725 RPM, 230V, two-speed square flange motor. Before ordering, always match the motor frame, flange style, voltage, horsepower, service factor, and shaft type to your existing motor and pump wet end.

Full Specifications

Brand	Century / A.O. Smith / Regal Rexnord
Manufacturer Part Number	SQS1202R
Motor Type	Pool and spa pump motor, two speed, full rated
Horsepower	2.0 HP high speed / 0.33 HP low speed
Service Factor	1.30
Total Horsepower (THP)	2.60 THP
Voltage	230V only — single voltage, not 115V convertible
Amperage	11.3 A high speed / 3.3 A low speed
Speed	3450 RPM high / 1725 RPM low (dual speed)
Frequency	60 Hz
Phase	Single phase
Frame	48Y
Flange Type	Square flange
Shaft	Threaded, 5/8" diameter, 303 stainless steel
Enclosure	ODP — open drip proof
Rotation	CCWPE — counter-clockwise facing the shaft end (non-reversible)
Bearings	Ball bearings
Thermal Protection	Automatic overload protection
Insulation Class	Class B
Maximum Ambient Temperature	50°C (122°F)
Motor Body Diameter	5-5/8" (5.6")
Overall Length	13.81"
Efficiency	EE — energy efficient, two-compartment design
Capacitors (as pictured)	Run capacitor 35 µF / 370 VAC · Start capacitor 64–77 µF / 250 VAC
Speed Switch	Not included — ships less hi-lo switch; requires a two-speed timer or control
Power Cord	Not included — hardwired installation
What's in the Box	Motor only — no wet end, seal plate, impeller, shaft seal, switch, or cord

How the Two-Speed SQS1202R Saves Energy

A two-speed motor lets the pump run at 1725 RPM for routine filtration and step up to 3450 RPM only when full flow is needed for vacuuming, backwashing, heating, running a pressure-side cleaner, or operating a spa or water feature.

Because low speed draws 3.3 amps instead of 11.3 amps, most of the daily turnover can be handled on the quieter, lower-draw setting. Running longer hours at low speed generally moves the same water using far less electricity than shorter high-speed cycles, and the pump is noticeably quieter at the equipment pad.

What Pump Does the Century SQS1202R Fit?

The Century SQS1202R is a replacement motor, not a complete pump. Fitment is determined by the pump wet end and the original motor specifications. This motor is intended for compatible pumps that use a 48Y square flange motor with a threaded shaft operating on 230V.

It is commonly used as a replacement on square flange, threaded-shaft pumps such as many Sta-Rite Max-E-Glas, Max-E-Glas II, Dura-Glas, Dura-Glas II, Dyna-Glas and Dyna-Max models, certain Pentair WhisperFlo and Pinnacle pumps, Anthony AR2 series pumps, and a range of Red Jacket and Sears jet and pool pumps. Always confirm against your own motor label rather than the pump name alone.

When replacing a pool pump motor, do not match by horsepower alone. You should also verify the frame, flange type, voltage, shaft style, service factor or total horsepower, and the pump model. A motor can be the correct horsepower and still be wrong if the pump uses a different flange or shaft type.

When Should You Replace Your Pool Pump Motor?

• The motor hums but will not start
• The motor is loud, grinding, or has failed bearings
• The motor overheats or shuts off during operation
• The breaker trips when the pump tries to start
• The motor shaft is seized or difficult to turn
• The motor has water damage from a leaking shaft seal
• The motor only runs on one speed, or will not change speeds
• The existing motor label matches the SQS1202R specifications

Recommended Installation Notes

When installing the Century SQS1202R, inspect the full pump assembly before reusing old parts. A leaking shaft seal is one of the most common reasons pool pump motors fail. If the seal leaks, water can travel along the motor shaft and damage the bearings or electrical components.

For best results, replace the shaft seal, inspect the impeller, check the diffuser and diffuser O-ring, and confirm the seal plate is not cracked before installing the new motor. Wire the motor for 230V, connect the low and high speed leads to your two-speed control, and follow all local electrical codes. Confirm rotation is counter-clockwise facing the shaft end — this motor is not reversible.

Commonly Replaced With This Motor

• Pump shaft seal
• Seal plate gasket or O-ring
• Diffuser O-ring
• Impeller screw or impeller hardware, if used on the pump model
• Two-speed timer, hi-lo switch, or two-speed control
• Motor mounting bolts, if existing hardware is corroded
• Damaged seal plate or diffuser, if cracked or warped

Frequently Asked Questions

Is the Century SQS1202R a complete pool pump?

No. The SQS1202R is the replacement motor only. It does not include the pump wet end, basket housing, lid, seal plate, diffuser, impeller, shaft seal, or plumbing connections.

What horsepower is the Century SQS1202R?

The SQS1202R is a full-rated 2.0 HP motor on high speed and 0.33 HP on low speed. With its 1.30 service factor it carries a total horsepower (THP) rating of 2.60.

Is the SQS1202R 115V or 230V?

The SQS1202R is 230V only. It is not a dual-voltage motor and cannot be rewired for 115V operation. Confirm your equipment pad is supplied with 230V before ordering.

What are the RPM and amp draw on each speed?

High speed runs at 3450 RPM and draws 11.3 amps. Low speed runs at 1725 RPM and draws 3.3 amps.

Does the SQS1202R come with a hi-lo speed switch?

No. This motor ships less the hi-lo switch. A two-speed timer, two-speed toggle switch, or compatible automation control is required to operate both speeds.

Is the SQS1202R a square flange motor?

Yes. The SQS1202R is a 48Y square flange motor with a 5/8" threaded stainless steel shaft. Confirm your existing motor uses the same frame and flange style before ordering.

What size is the SQS1202R motor?

The motor body measures 5-5/8" in diameter with an overall length of 13.81". Confirm you have clearance at the equipment pad before ordering.

Which direction does the SQS1202R rotate?

Rotation is CCWPE, meaning counter-clockwise when facing the shaft end. The motor is not reversible.

Should I replace the shaft seal when changing the motor?

Yes. Replacing the shaft seal is strongly recommended whenever a pool pump motor is replaced. A worn seal can leak water into the new motor and cause premature failure.

Will the SQS1202R fit my pump if the horsepower matches?

Not always. Horsepower is only one part of motor matching. You also need to confirm the frame, flange type, shaft type, voltage, total horsepower, and pump model.

Can I run my pool entirely on low speed?

Many pools can handle most daily filtration on low speed, but high speed is still needed for tasks that require full flow, such as vacuuming, backwashing, running a pressure-side cleaner, heating, or operating spa jets and water features.

Order the Century SQS1202R from Aqua Terra Backyard

At Aqua Terra Backyard, we help pool owners and service professionals choose the correct replacement parts without guessing. The Century SQS1202R 2 HP Two-Speed Square Flange Pool Pump Motor is a dependable, energy-saving replacement for compatible pool and spa pumps that use a 48Y square flange, threaded shaft motor on 230V.

Need help confirming fitment? Send us a photo of your existing motor label and pump model label before ordering. We can help verify whether the SQS1202R is the correct replacement motor and recommend the proper shaft seal, two-speed control, and pump hardware to complete the repair.