Masterpact Circuit Breaker Manual

Masterpact circuit breakers are operated via a stored energy mechanism for instantaneous opening and closing.

Masterpact circuit breaker manual.

Closing and opening operations can be initiated either from the local pushbuttons on the circuit breaker front face or by remote control. 0 c 0 cycle is possible without recharging. For complete information on masterpact handling and mounting see the installation manual s. Matching a masterpact circuit breaker with its chassis.

To set up a mismatch prevention combination for the circuit breaker and the chassis see the mismatch prevention installation manual. Tutorial for performing a manual charge of the closing spring within masterpact nw and masterpact nt circuit breakers by pumping the charging handle several. Masterpact nt and nw maintenance guide device and chassis mechanisms mechanical operation of the circuit breaker may be hindered by dust knocks aggressive atmospheres no greasing or excessive greasing. Using masterpact the circuit breaker signals a fault trip by.

The basic design platform for each is common. Masterpacttm circuit breaker is operated via a stored energy mechanism which can be manually or motor charged. B a mechanical indicator on the front b one or two sde fault trip indication contacts sde2 is optional. E51217a push the circuit breaker into the chassis taking care not to push on the control unit.

The masterpact nw low voltage power circuit breaker1 and insulated case circuit breaker are designed to mount in a drawout cradle using rear mounted plug on pressure connections to provide electrical connection to the cradle. Operating safety is ensured by dusting and general cleaning proper greasing and regular opening and closing of the circuit breaker. Refer to the masterpact nt nw universal power circuit breaker catalog 0613ct0001 for product descriptions. Closing and opening operations can be initiated either from the local pushbuttons on the circuit breaker front face or by remote control.

Before mounting the circuit breaker make sure it matches the chassis. The final result is ul ansi and iec circuit breakers with. The mechanism is charged either manually or electrically. Resetting after a fault trip remotely.

The mismatch protection ensures that a circuit breaker is installed only in a chassis with compatible characteristics. Locally if the circuit breaker is not equipped with the automatic reset option reset it manually. This document is intended to provide part numbers for a complete circuit breaker with cradle and required accessories as well as field installable accessory kits.