June 2015 - CARLO GAVAZZI has launched a new range of Miniature Circuit Breakers
for up to 480Y/277VAC systems: GMB Series UL489 MCBs for Branch Circuit Protection
and GSB Series UL1077 MCBs for Supplementary Circuit Protection.
The GMB Series are UL489, AC miniature molded circuit breakers, which provide
reliable protection for a wide range of applications including branch circuit protection
of HACR equipment, power supplies, transformers, motors, receptacles and other equipment.
1, 2 and 3 pole arrangements are available, ranging from 0.5A to 63A, with short
circuit interrupt capacity of 10kA. The GMB Series circuit breakers are cUL listed
and conform to IEC standard EN-60947-2.
The GSB Series are UL1077 AC supplementary circuit protectors, which offer overcurrent protection
for specific applications where branch circuit protection is already provided by another device
or is not required. They are available in 1, 2, 3 and 4-pole variations, ranging from 1 to 63Amps
and have a short circuit interrupt capacity of 5kA. The GSB Series are cUL recognized components.
The new GMB Series UL489 branch circuit protectors and GSB Series UL1077 supplementary
protectors are housed in compact 17.5mm wide housings (per pole), with robust DIN-rail mounting
and red/green diagnostic trip indicators. C tripping curve is standard, with B & D tripping
curves available upon request.