
Quick overview
- Two speed, full rate Runs 3450 rpm on high and 1725 rpm on low, so filtration can sit on low and step up when it needs to.
- 56J C-face frame Y56J frame with round mounting, the standard replacement pattern for threaded shaft pool pumps.
- 230 volt Wired for 230V single phase supply at 60 Hz.
- Sealed ball bearings Ball bearings at both ends, drip proof enclosure, thermally protected.
- Stainless steel shaft 303 stainless, 7/16 inch threaded, so the impeller threads straight on.
- Switching design High speed is switchless and low speed runs through a microswitch, using a permanent split capacitor design to UL 1081.
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Product details
The Century B2975 is a 1 HP two speed full rate replacement pool pump motor on a Y56J C-face frame, wired for 230 volts at 60 Hz. It turns 3450 rpm on high and 1725 rpm on low.
Why two speed
Most of a pool day does not need full speed. A two speed motor lets filtration run on low, where the motor draws a fraction of the current, and step up to high for vacuuming, heating or backwashing. The design here is permanent split capacitor, switchless on high speed with a microswitch on low, built to UL 1081.
Build and mounting
Sealed ball bearings at both ends, a drip proof enclosure, thermal protection, a rolled steel frame and a 303 stainless steel shaft, threaded at 7/16 inch so the impeller screws straight on. Overall length is 13.05 inches with a 7.75 inch frame, and mounting is round.
Before ordering, compare the frame, the shaft and the voltage against the motor coming out. Nameplate output is listed as 1.0/ .12 Hp at a 1.4 service factor with SF current of 6.6/1.25 A.
| Brand | Century |
|---|---|
| Manufacturer part number | B2975 |
| UPC | 786674060174 |
| Type | Replacement pool pump motor |
| Output HP | 1.0/ .12 Hp |
| Output kW | 0.75 kW |
| Voltage | 230 V |
| Speed | 3450/1725 rpm |
| Number of speeds | 2-2VT |
| Service factor | 1.4 |
| Frame | Y56J |
| Enclosure | Drip Proof |
| Frequency | 60 Hz |
| Current | SF 6.6/1.25 A |
| Shaft type | 7/16" Threaded |
| Overall length | 13.05" |
| Mounting | Round |
| Shipping weight | 32 lb |
| Ships | Parcel |
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