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Manual Motor Starters

Traditionally overload relays, when combined with contactors, provided the necessary motor protection for most electrical applications. But within the past few decades manual motor starters (MMS's), also referred to as manual motor protectors (MMP's) or motor starter protectors (MSP's), have created their own niche in the motor protection realm. Simply put, manual motor starters offer an economical solution for applications that require the manual starting and stopping of motors in one small unit.
While manual motor protectors are often used without the addition of a contactor and as a standalone unit, they must have short circuit protection in the form of a fuses or circuit breaker upstream of this unit. But when combined in a group motor installation, only one set of fuses or a circuit breaker is required for all the manual starters within that same group, providing a cost savings and a reduction in wiring saving time and expense.


Motor starter protectors share many of the same similarities and features of overload relays and essentially function in the same manner. All manual motor starters are suited for 3 phase applications and offer phase loss protection along with Class 10 or Class 20 tripping times. In addition, when combined with a 3 pole contactor, these units function as a UL 508 Type E self-protected manual combination starter/motor controller. This offers protection in four ways: motor overload protection, short circuit
protection, disconnect and motor controller.


There are seemingly endless accessories for these units that can be added to accommodate any application regardless of complexity. The list includes but is not restricted to front and side mounted auxiliary contacts, plastic and metal enclosures, under voltage trip mechanisms, shunt trips, along with line and load side adapters, just to name a few.


If you need assistance to determine which manual motor starter is right for you, please give us a call at 800.222.5129 and we can discuss you situation and determine which would bet suit your needs.

  • Benshaw RMSP-32H-32A dimensions

    RMSP32H32A

    Benshaw RMSP-32H-32A motor starter protector with adjustable AMP range from 22 to 32 AMPS, Class 10 protection and phase loss sensitivity. These manual motor starters are suitable for up to 690V operational voltage, have a trip indicating and test...

    $76.64
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  • Benshaw RMSP-LX11 side mounted auxiliary block

    RMSP-LX11

    Benshaw RMSP-LX11 side mounted 2 pole auxiliary with 1 normally open (N.O.) and 1 N.C. contact set. This Benshaw auxiliary contact mounts to the left side of any RMSP-32H, RMSP-63H or RMSP-100H motor starter protector, has screw terminals and can be used...

    MSRP: $31.00
    $18.36
    Add to Cart
  • PKZMO-4

    PKZMO-4

    Eaton / Moeller PKZM0-4 manual motor protector that is adjustable from 2.5 to 4 AMPS, has Class 10 tripping characteristic (trips in 10 seconds or less), a rotary operated on/off handle and screw terminals.  This manual motor starter is UL and CSA...

    MSRP: $135.00
    $87.57
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  • Benshaw RMSP-32H-26A manual motor protector Benshaw RMSP-32H-26A dimensions

    RMSP32H26A

    Benshaw RMSP-32H-26A motor starter protector with adjustable AMP range from 18 to 26 AMPS, Class 10 protection and phase loss sensitivity. These manual motor starters are suitable for up to 690V operational voltage, have a trip indicating and test...

    $76.64
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  • XTPAXFA11

    EATON XTPAXFA11 front mounted auxiliary contact with 1 N.O. and 1 N.C. contacts. For use with the EATON XTPR Manual Motor Starters. Click here to view a PDF file on this EATON XTPA Manual Motor Starter Auxiliary

    MSRP: $26.00
    $13.00
    Add to Cart
  • Benshaw RMSP-FX11 front mounted auxiliary block

    RMSP-FX11

    Benshaw RMSP-FX11 front mounted 2 pole auxiliary with 1 normally open (N.O.) and 1 N.C. contact set. This Benshaw auxiliary contact mounts to the front of any RMSP-32H, RMSP-63H or RMSP-100H motor starter protector, has screw terminals and can be used...

    MSRP: $31.00
    $16.69
    Add to Cart
  • Benshaw RMSP-32H-22A manual motor protector Benshaw RMSP-32H-22A dimensions

    RMSP32H22A

    Benshaw RMSP-32H-22A motor starter protector with adjustable AMP range from 14 to 22 AMPS, Class 10 protection and phase loss sensitivity. These manual motor starters are suitable for up to 690V operational voltage, have a trip indicating and test...

    $76.64
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  • Allen Bradley 140M-C2E-C10 motor protector Allen Bradley 140M-C2E-C10 dimensions

    140M-C2E-C10

    Allen Bradley 140M-C2E-C10 Series C motor protection circuit breaker with trip class 10 (trips in 10 seconds of less), DIN rail mounting, rotary operation and adjusts from 6.3 to 10 AMPS. Each motor protection comes with a trip and test indication for a...

    MSRP: $220.00
    $124.22
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  • 11SM1B28

    11SM1B28

    Lovato Electric SM1B series manual motor starter with range from 2.5A-4A General characteristicsThe SM1B series is a new generation of manual starters with thermal and magnetic trip releases. Motor control and protection, up to 20HP at 460V, are...

    $0.00
  • Benshaw RMSP-63H manual motor protector Benshaw RMSP-63H dimensions

    RMSP-63H

    Benshaw RMSP-63H motor starter protector with AMP ranges from 6 to 63 AMPS (must specify AMP range above), Class 10 protection and phase loss sensitivity. These manual motor starters are suitable for up to 690V operational voltage, have a trip indicating...

    MSRP: $247.00
    $159.66
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  • SALE
    XTPR2P5BC1

    XTPR2P5BC1

    Eaton XTPR2P5BC1 manual motor protector that is adjustable from 1.6 to 2.5 AMPS, has Class 10 tripping characteristic (trips in 10 seconds or less), screw terminals and mounts on standard 35MM DIN rail. This motor starter is permissible for use as a...

    MSRP: $204.00
    Was: $87.57
    Now: $75.00
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  • XTPAXSA21

    EATON XTPAXSA21 side mounted auxiliary contact with 2 N.O. and 1 N.C. contacts. For use with the EATON XTPR Manual Motor Starters. Click here to view a PDF file on this EATON XTPA Manual Motor Starter Auxiliary

    MSRP: $42.75
    $21.38
    Add to Cart