Masterpact Circuit Breaker Manual

To set up a mismatch prevention combination for the circuit breaker and the chassis see the mismatch prevention installation manual.

Masterpact circuit breaker manual.

For complete information on masterpact handling and mounting see the installation manual s. Resetting after a fault trip remotely. Before mounting the circuit breaker make sure it matches the chassis. The mechanism is charged either manually or electrically.

The masterpact nt and nw universal power circuit breakers offer a family of circuit protection products meeting the most common world standards ansi ul and iec. Masterpact circuit breakers are operated via a stored energy mechanism for instantaneous opening and closing. 0 c 0 cycle is possible without recharging. Open the circuit breaker in any case it opens automatically during connection.

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. Matching a masterpact circuit breaker with its chassis. B a mechanical indicator on the front b one or two sde fault trip indication contacts sde2 is optional. The basic design platform for each is common.

Closing and opening operations can be initiated either from the local pushbuttons on the circuit breaker front face or by remote control. 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. Closing and opening operations can be initiated either from the local pushbuttons on the circuit breaker front face or by remote control. E51217a push the circuit breaker into the chassis taking care not to push on the control unit.

Common auxiliaries from 800 a to 6 300 a. 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. Refer to the masterpact nt nw universal power circuit breaker catalog 0613ct0001 for product descriptions.

Operating safety is ensured by dusting and general cleaning proper greasing and regular opening and closing of the circuit breaker. Locally if the circuit breaker is not equipped with the automatic reset option reset it manually. Using masterpact the circuit breaker signals a fault trip by.