ControlGear Miniature Circuit Breaker 30A, 3-Pole D Curve, UL-489 Listed | DIN Rail Mount, Current Limiting, UL-489 Listed, 277VAC, 10kAIC, Non Polarized MCB

UL-489 CERTIFIED. This miniature circuit breaker provides primary thermal overload and short circuit protection per National Electrical Code, Approved by Underwriters Laboratories for Branch Circuit Protection in US and Canada. The 30 amp breaker is UL-489 Listed for Branch Circuit Protection, delivering reliable performance on standard din rail systems for critical circuits.

MOUNTING OPTIONS. Easily install this circuit breaker by snapping onto a 35mm DIN rail (sold separately). The miniature circuit breaker may also be directly mounted to a panel for all circuit protection applications .

TECHNICAL SPECS. This UL-489 certified 30 amp miniature circuit breaker is calibrated for a 3 Pole D Trip curve configuration. Operates at480Y/ 277VAC with 10kAIC short circuit rating. ControlGear miniature circuit breaker (Model CGMB3D30) is ideal for control panels, HVAC equipment and all applications requiring safe and reliable circuit protection.

RAPID RESPONSE. ControlGear miniature circuit breakers are inherently current limiting, interrupting faults within the first half of the AC cycle, while conventional breakers require 1-2 AC cycles. This provides enhanced protection for power and control circuits.

AVAILABLE ACCESSORIES. Add sophisticated control features with a full line of snap-on accessories, including a shunt trip module, undervoltage release, auxiliary contact and alarm modules, a locking device, and bus bar primary connection system.