
Century Threaded .75 HP Polaris P61 Booster Pump Motor 115/230V, B625
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Quick overview
- Direct P61 replacement Century lists B625 as identical to the P61 115/230V booster pump motor.
- Threaded shaft Half inch threads on the shaft, which is what the Polaris booster pump wet end requires.
- Dual voltage Wired for 230V or 115V single phase at 60 Hz.
- Sealed ball bearings Ball bearings at both the drive end and the opposite drive end, sealed from the start.
- 1.5 service factor Three quarter output HP with a 1.5 service factor and continuous duty rating.
- Non-reversible rotation Single rotation motor built for booster pump and cleaner duty, so it goes on one way.
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Frequently bought together

Century Threaded .75 HP Polaris P61 Booster Pump Motor 115/230V, B625

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Product details
The Century B625 is the three quarter HP threaded shaft motor for the Polaris booster pump, listed by the manufacturer as identical to the P61 115/230V motor.
Threaded shaft
Booster pumps do not take an ordinary pool motor. The shaft on this one carries 1/2 inch threads, which is how the booster wet end mounts, so a standard keyed shaft motor is not a substitute.
Electrical and mechanical
It is a single phase, dual voltage motor rated 230/115 V at 60 Hz, running 3450 rpm on an N56CZ frame with a 1.5 service factor and a continuous duty rating. Full load current at service factor is 6.4/12.8 A. Construction is drip proof with sealed ball bearings at both ends, a rolled steel frame and Class B insulation, rated to a 40 C ambient and thermally protected.
Rotation
The manufacturer data states rotation two ways, as CW Non-Reversible and as Counterclockwise Pump End. It is a single rotation motor either way, so the wet end goes back together the way it came apart.
| Brand | Century |
|---|---|
| Manufacturer part number | B625 |
| UPC | 786674012647 |
| Substitute part numbers | P61 |
| Application | Booster pump, cleaner |
| Output HP | 3/4 Hp |
| Output kW | 0.56 kW |
| Voltage | 230/115 V |
| Speed | 3450 rpm |
| Service factor | 1.5 |
| Frame | N56CZ |
| Shaft type | 1/2" THREADS |
| Rotation | Listed as CW Non-Reversible, and as Counterclockwise Pump End |
| Bearings | Sealed ball, drive end and opposite drive end |
| Enclosure | Drip Proof |
| Current | SF 6.4/12.8 A |
| Overall length | 14.13" |
| Shipping weight | 25 lb |
| Ships | Parcel |
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