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 motor protection unit is right for you, please give us a call at 800.222.5129 and we can discuss your situation and determine which would bet suit your needs.

  • WEG MPW18 manual starter WEG MPW18 side dimensions

    MPW18

    The WEG MPW18 is a three phase manual motor protector with push button operation and available AMP ranges from 0.10 to 18 AMPS (must specify AMP range above).  This motor starter has overload and short circuit protection, is single phase...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-C016 manual starter WEG MPW18-3-C016 side view

    MPW18-3-C016

    The WEG MPW18-3-C016 is a three phase manual motor protector with push button operation and an AMP range of 0.10 to 0.16 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-C025 manual starter WEG MPW18-3-C025 side view

    MPW18-3-C025

    The WEG MPW18-3-C025 is a three phase manual motor protector with push button operation and an AMP range of 0.16 to 0.25 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-C063 manual starter WEG MPW18-3-C063 side view

    MPW18-3-C063

    The WEG MPW18-3-C063 is a three phase manual motor protector with push button operation and an AMP range of 0.40 to 0.63 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-D004 manual starter WEG MPW18-3-D004 side view

    MPW18-3-D004

    The WEG MPW18-3-D004 is a three phase manual motor protector with push button operation and an AMP range of 0.25 to 0.40 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-D016 manual starter WEG MPW18-3-D016 side view

    MPW18-3-D016

    The WEG MPW18-3-D016 is a three phase manual motor protector with push button operation and an AMP range of 1 to 1.6 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-D025 manual starter WEG MPW18-3-D025 side view

    MPW18-3-D025

    The WEG MPW18-3-D025 is a three phase manual motor protector with push button operation and an AMP range of 1.6 to 2.5 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-D063 manual starter WEG MPW18-3-D063 side view

    MPW18-3-D063

    The WEG MPW18-3-D063 is a three phase manual motor protector with push button operation and an AMP range of 4 to 6.3 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-U001 manual starter WEG MPW18-3-U001 side view

    MPW18-3-U001

    The WEG MPW18-3-U001 is a three phase manual motor protector with push button operation and an AMP range of 0.63 to 1 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart
  • WEG MPW18-3-U004 manual starter WEG MPW18-3-U004 side view

    MPW18-3-U004

    The WEG MPW18-3-U004 is a three phase manual motor protector with push button operation and an AMP range of 2.5 to 4 AMPS.  This motor starter has overload and short circuit protection, is single phase sensitive (will trip if phase loss is...

    MSRP: $120.00
    $79.40
    Add to Cart