Austal has been advised that the Masterpact NT and NW series Circuit-Breakers have reached their end of life and have been replaced with the new Masterpact MTZ series of circuit breakers.
Austal has been advised that spare parts for the NT/NW series circuit-breaker will be available until June 2028. Austal will continue to support vessels with the NT/NW series of circuit breakers.
The new MTZ series breakers have the same power connections, current rating and terminal temperature rising as the equivalent NT/NW series circuit breaker. The new MTZ series circuit breaker also does not require the switchboard to be re-certified if previously certified with a NT/NW series circuit breaker.
Austal can offer upgrades to the replacement MTZ series of circuit breakers.