Listed Motor Circuit Switch

Motor branch circuit conductors are protected against overcurrent by overloads sized at 115 to 125 of motor nameplate current rating 430 32.

Listed motor circuit switch.

Motor branch circuit and at the motor disconnecting means motor controller identification pullout switches as listed to ul1429 will contain a marking near the agency symbol. Listed electromechanical motor controller ul 508 or ul 60947 4 1 nldx or listed solid state motor controller ul 508 or ul 60947 4 2 nmft without motor overload protection fast mc slow mc same as mc above except designates two individual contactors fast speed and slow speed for two speed motor controller. A general use snap switch used to supply a 1 hp motor shall be permitted to control a load of not greater than. Molded case switches as listed to ul 489.

Manual no operation nop auto have fun. Circuits unless listed and marked for other than single circuit use. There is a new exception permitting a listed non fused motor circuit switch having a horsepower rating equal to or greater than the motor horsepower to have an ampere rating less than 115 percent of the full load current rating of the motor. Used for motor motor circuit and group motor protection.

Selector switch has been added to a simple circuit on off motor for mode selection. You must protect each motor branch circuit against short circuit and ground fault by a protection device sized no greater than the percentages listed in table 430 52. This marking should read listed pullout switch. Motor circuit switch rated in horsepower 2 molded case circuit breaker 3 molded case switch 4 instantaneous trip circuit breaker that is part of a listed combination motor controller 5 self protected combination controller 6 manual motor controller additionally marked suitable for use as motor disconnect.

The substantiation for this new exception demonstrated that it is common for non fused switches with. Motor branch circuit conductors are protected against overcurrent by overloads sized at 115 to 125 percent of motor nameplate current rating 430 32. A motor circuit switch is generally required to be rated in.