Noark UL489 circuit breakers, the B1N (240VAC/60VDC) and B1H (480Y/277VAC) series, are branch circuit breakers available in either standard box terminals or ring-tongue terminals (R suffix). They are designed for branch circuit protection.
B1N series is available up to 63 amp, the B1H series is available up to 32 amp.
The B1N series has standard ratings of 10kA at 240VAC and 10kA at 60VDC (1 pole)/125VDC (2 pole).
The B1H series has standard ratings of 10kA at 480Y/277VAC.
Noark also carries UL1077 circuit breakers, the B1E series, which are designed for supplementary protection.
All NOARK circuit breakers mount on standard 35 mm DIN rail.
Series Features Include:
Complete range of UL 489 listed miniature circuit breakers up to a 63 A current rating
Breakers mount on standard 35 mm DIN rail
Standard ratings of 10 kA at 240 VAC and 10 kA at 60 VDC (1P) /125 VDC (2P)
Suitable for branch circuit device protection
Trip-free design - breaker cannot be defeated by holding the handle in the ON position
Captive screws cannot be lost
For use in applications for which UL 1077 or CSA C22.2 No.235 are also allowed
Field installable shunt trip and auxiliary switch subsequent mounting
Available with provisions for ring tongue terminals
Module width of only 0.71 in (18 mm) per pole
Contact position indicator (red/green)
Possibility for locking the toggle in ON or OFF position
