Motor (Electric) device that transforms electrical energy into mechanical
energy.
ON
OFF
O
800A
I
Type/Typo
NMG
!
!
! DANGER
DANGER PELIGRO
Frame MG
150A
OFF O
I
ON
Type/Tipo NDG
Frame DG
150A
OFF
O
I
ON
Type/Tipo NDG
Frame DG
Molded Case Switch switch enclosed the same type insulated housing a
molded case circuit breaker. preset instantaneous
function factory installed allow the switch trip and
protect itself high fault current, but the switch provides no
thermal overload protection short circuit protection.
Motor Control Center metal structure containing multiple motor control units.
Typically, individual control circuits are mounted removable
containers, often referred pans buckets.22
Molded Case Circuit Breaker circuit breaker enclosed insulated housing. Siemens molded case switches
employ the same operating mechanism thermal-magnetic
and magnetic only circuit breakers.
. the United
States, molded case circuit breakers conform NEMA AB-1
and 489 specifications
