Century 629002-001 stationary single speed starter switch for A.O. Smith pump motorsCentury Stationary Single Speed Switch, 629002-001 In stock$3699
Century 629002-001 stationary single speed starter switch for A.O. Smith pump motors
Shop all Century Motors

Century Stationary Single Speed Switch, 629002-001

Ask a questionMPN 629002-001
$3699
In stock
Get volume pricing Request a quote

30 day returns · Easy, with prepaid labels provided

Quick overview

  • Stationary half of the switch This is the fixed starter switch, the part the rotating governor pushes against.
  • Single speed motors Listed for single speed A.O. Smith pump motors.
  • For the MSE7 pump The source lists the MSE7 pump as the application.
  • Also known as SAW-25 The same switch appears under the SAW-25 designation, with 5270-64 given as a substitute part number.
  • Capacitor rated Listed at a 10 mfd microfarad rating and 370V.
  • Common no start cause A burnt or pitted starter switch is why a motor hums and will not come up to speed.
Full description and specifications ↓

Need a hand?

Bilingual support from pool professionals.
(888) 751-8084CallChat with a techChatEmail usEmail

Send us a message

A pool professional will get back to you, usually the same business day.

About Century Stationary Single Speed Switch, 629002-001, SKU AOS-601-6680. We will include it with your message.

We use your details to answer this message and nothing else.

Frequently bought together

Current item Century Stationary Single Speed Switch, 629002-001
Century Motors

Century Stationary Single Speed Switch, 629002-001

$3699
Century 1-1/2 HP 3450 RPM 56Y Frame Square Flange Pool Pump Motor, 115/230V, B2854V1
Century Motors

Century 1-1/2 HP 3450 RPM 56Y Frame Square Flange Pool Pump Motor, 115/230V, B2854V1

$33999
Century VGreen Evo Variable Speed 1.65 THP Square Flange Pool Pump Motor, 230/115 V, 48Y Frame, EVQ165
Century Motors

Century VGreen Evo Variable Speed 1.65 THP Square Flange Pool Pump Motor, 230/115 V, 48Y Frame, EVQ165

$61999
Century 56Y Frame ODP Square Flange Pool & Spa Pump Motor 2HP 230V, B2855
Century Motors

Century 56Y Frame ODP Square Flange Pool & Spa Pump Motor 2HP 230V, B2855

$41199
Century 1.65 HP Square Flange Pool and Spa Pump Motor, 3450 RPM 48Y, Threaded Shaft, HSQ165
Century Motors

Century 1.65 HP Square Flange Pool and Spa Pump Motor, 3450 RPM 48Y, Threaded Shaft, HSQ165

$33999
Century 1 HP Square Flange Pool Pump Motor, 1 Phase, 60 Hz, 230/115 V, 3450 RPM, 56Y Frame, B2853V1
Century Motors

Century 1 HP Square Flange Pool Pump Motor, 1 Phase, 60 Hz, 230/115 V, 3450 RPM, 56Y Frame, B2853V1

$31999
Century 1 HP Pump Motor, 230/115 Volt, 3450 RPM, Round Flange, 56J Frame, ODP, UST1102
Century Motors

Century 1 HP Pump Motor, 230/115 Volt, 3450 RPM, Round Flange, 56J Frame, ODP, UST1102

$28799
Subtotal

Similar products

Other products people compare with this one.

Century motor switch assembly for BN frame pool and spa motors Century OEM Motor Switch Assembly, 1576815$4999 Century 628318-307 capacitor rated 25 MFD at 370 volts Century Capacitor 25 MFD 370V, 628318-307$3199 U.S. Seal 30 MFD 370 VAC run capacitor for pool pump motors U.S. Seal Run Capacitor, 30 MFD, 370vac, 5VR0303$3099 Pentair R221016 protective pool pump motor cover, B8200C Pentair Protective Pool Motor Cover, R221016$3799 U.S. Seal RD-50-370 run capacitor, 50 MFD 370 volts U.S. Seal Run Capacitor 50 MFD 370V, RD-50-370$4299 SuperPro 12717 round run capacitor, 30 MFD 370V SuperPro 30 MFD 370V Round Run Capacitor, 12717$3499 U.S. Seal RD-25-370 round run capacitor, 25 MFD 370V U.S. Seal Run Capacitor 25 MFD 370V Round, RD-25-370$2799 SuperPro 12725 round run capacitor rated 50 MFD 370V SuperPro 50 MFD 370V Round Run Capacitor, 12725$4799 Century B2858 1.5 HP full rated pool pump motor, front right view Century 1.5 HP Full Rated Pool Pump Motor, 115/230V, Single Speed, B2858$48599 Century BN34V1 two speed 1.5 HP 230V 48Y frame pool pump motor Century Motor, 2 Speed, 1.5 HP, 230V, 48Y Frame, BN34V1$37499
Century BN51 2 HP two speed 230V 48Y frame thru bolt pool pump motor Century 2 HP 2 Speed 230V 48 Frame Pool Pump Motor, BN51$42099 Century B2982 1 HP two speed full rated pool pump motor, 230 V, Y56Y frame Century 1 HP Pool Motor, 2 Speed, Energy Efficient Full Rate, 230V, B2982$46099 Century B2977 2.5 HP 56J frame two speed C-face pool pump motor Century C-Face Pool Pump Motor, 2.5 HP, 56J Frame, 2-Speed, B2977$49399 Century B2975 1 HP 2-speed full-rate 56J pool pump motor, 230V Century 1 HP 2-Speed Full-Rate 56J Motor, 230V, B2975$49799 Century SQS1102R square flange 1 HP two speed 230V pool pump motor Century Square Flange Full Rated 1 HP 2 Speed 230V Pool Pump Motor SQS1102R$55899 Century B2983 full rated two speed pool pump motor, 1.5 HP 1.47 SF 230V Century Full-Rated Two-Speed Motor, 1.5 HP 1.47 SF 230V (B2983)$57099 Century STS1152R energy efficient two speed pool pump motor, 1.5 x 1/4 HP, 230V Century Energy Efficient Two Speed Pump Motor, Full Rated, 1.5 x 1/4 HP, 230V, STS1152R$58399 Century EVQ130 VGreen Evo 1.30 THP variable speed square flange pool pump motor Century VGreen Evo Variable Speed 1.30 THP Square Flange Pool Pump Motor, 230/115 Volt, EVQ130$58699 Century EVC130 VGreen Evo 1.30 THP C flange variable speed pool pump motor Century VGreen Evo Variable Speed 1.30 THP C Flange Pool Pump Motor, 230/115 V, 56J Frame, EVC130$59099 Century SQS1152R square flange 1.5 HP two speed 230V pool pump motor Century Square Flange Full Rated 1.5 HP 2 Speed 230V Pool Pump Motor, SQS1152R$60399

Product details

The Century 629002-001 is the stationary starter switch for single speed A.O. Smith pump motors, with the MSE7 pump given as the listed application. The same part appears under the SAW-25 designation, and 5270-64 is listed as a substitute part number.

How the switch works

A single speed induction motor cannot start on its run winding alone. At rest, the starter switch contacts are closed, which puts the start winding and its capacitor into circuit and gives the rotor the kick it needs. As the motor approaches running speed, the rotating half of the assembly moves and opens these stationary contacts, dropping the start winding back out of circuit. That happens every single time the pump starts.

Why it fails

Contacts that make and break under load every start eventually pit and burn. When they stop closing reliably, the start winding never engages, and the motor hums without turning until the overload trips. Replacing the switch is the fix, and it is a good deal cheaper than a motor.

Listed dimensions

2 inch diameter by 1-1/4 inch oval by 3-1/8 inch high, rated at 10 mfd and 370V.

Specifications
Brand Century
Manufacturer part number 629002-001
UPC 735090907464
Type Starter switch, stationary
Speed Single speed
Dimensions 2 inch dia x 1-1/4 inch oval x 3-1/8 inch H
Fits MSE7 pump, single speed A.O. Smith pumps
Capacitor microfarad rating 10 mfd
Voltage 370V
Substitute part numbers 5270-64
Also listed as SAW-25
Shipping weight 0.15 lb
Ships Parcel

Request a quote

Need a volume price, a freight quote, or pricing in writing before you order? We reply the same business day.

Request a quote

Customer reviews

Questions and answers

What people ask about this product, answered by our pool techs.

What does a stationary starter switch do?
It is the fixed contact side of a motor start switch. On start up the contacts are closed so the start winding and capacitor are in circuit. As the motor comes up to speed the rotating half moves and opens them, dropping the start winding out.
Is SAW-25 the same switch?
The source lists this part as the SAW-25 replacement stationary switch, and gives 5270-64 as a substitute part number.
Which motors is it for?
Single speed A.O. Smith pump motors. The listed application is the MSE7 pump.
My motor hums but does not spin. Is this the part?
A pitted or burnt starter switch is one of the standard causes. If the contacts no longer close, the start winding never engages and the motor sits there humming until it trips out.
Ask your own question