Type MS116

	Suitable for use with 3-phase motors up to 10 HP @ 480V
	UL Listed and CSA certified for Group Motor Installations
	12 Setting ranges from 0.1 to 16 amps.
	Up to 30kA or 50kA with no back up fuse required
	35mm DIN rail snap-on mounting
	Wide range of accessories

Type MS325

	Suitable for use with 3-phase motors up to 15 HP @ 480V
	UL Listed and CSA certified for Group Motor Installations
	12 Setting ranges from 0.1 to 25 amps.
	Up to 50kA or 100kA with no back up fuse required
	35mm DIN rail snap-on mounting
	Wide range of accessories

Type MS45x

	Suitable for use with 3-phase motors up to 40 HP @ 480V
	UL Listed and CSA certified for Group Motor Installations
	14 Setting ranges from 11 to 50 amps
	Up to 100kA with no back up fuse required
	35mm DIN rail snap-on mounting
	Wide range of accessories

Type MS49x

	Suitable for use with 3-phase motors up to 75 HP @ 480V
	UL Listed and CSA certified for Group Motor Installations
	22 Setting ranges from 11 to 100 amps
	Up to 100kA with no back up fuse required
	35mm DIN rail snap-on mounting
	Wide range of accessories

Single motor applications

Single motor applications employing a manual motor protector (MMP) result in a simple, compact and economical alternative to conventional magnetic motor controllers for manual operation of a single motor. Upstream short circuit and overcurrent protection in the form of fuses or a circuit breaker is required
but the MMP can replace the overload relay, contactor and associated electrical components and wiring for controlling the contactor.

Group motor applications

Group motor installations offer several advantages when controlling two or more motors or other loads over conventional single motor starters. Several MMPs can be grouped together and fed from a single set of fuses or a circuit breaker. These devices can be installed together on a single DIN rail and fed power through three phase insulated busbars and
a power feed terminal. Protecting this group of MMPs is a single circuit breaker or fusible switch, sized specifically for the load. Excellent coordination and short circuit protection can be achieved, as high as 50kAIC, when using the MS325 product in this manner. Close coupling adapters are offered to connect contactors to the load side of each MMP for automatic operation of each motor. If a single motor experiences an overload, the associated MMP trips and allows the other motors to continue running. Numerous accessories are available for signaling in the event of a trip, to indicate status, to provide shunt trip and for undervoltage release. The main benefits of group installation are quick, fool proof assembly, minimal wiring and a reduction of the necessary enclosure size. The only constraint is that the upstream circuit protective device must be sized specifically for the load - a highly desirable feature in order to provide the closest coordination and the greatest level of circuit protection. Article 430.53(C) of the NEC® specifies the requirements for group motor installations; all ABB MMPs meet these requirements.