Mini Circuit Breaker UL489 Listed 20A C Curve 480Y/277VAC 125VDC 10kAIC DIN Rail Mount Non Polarized MCB Branch Circuit Protection, ControlGear

Mini Circuit Breaker UL489 Listed 20A C Curve 480Y/277VAC 125VDC 10kAIC DIN Rail Mount Non Polarized MCB Branch Circuit Protection, ControlGear

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 20 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 20 amp miniature circuit breaker is calibrated for a 2 Pole C Trip curve profile. Maximum operating voltage is 480Y/ 277VAC 125VDC with 10kAIC short circuit rating. ControlGear miniature circuit breaker (Model CGMB2C20) 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. The ControlGear Miniature Circuit Breaker is an advanced electrical protection device, UL 489 Listed to ensure full compliance with National Electrical Code standards for Branch Circuit Protection in both the US and Canada. Available in 1 Pole, 2 Pole, and 3 Pole configurations, this breaker series supports a wide range of C and D Trip Curve options and ampere ratings from 1A to 63A. Each unit is engineered for reliable performance at 277VAC and 60VDC for 1 Pole, 480Y/277VAC and 125VDC for 2 Pole, or 480Y/277VAC for 3 Pole, featuring a robust 10kAIC short-circuit current rating. These specifications make the breakers suitable for control panels, HVAC systems, automated machinery, and industrial applications requiring precise overcurrent and short-circuit protection. All breakers are non-polarized. A current-limiting design enables extremely fast fault interruption—typically within the first half-cycle—significantly reducing let-through energy compared to conventional breakers that may take 1–2 cycles. This rapid response provides enhanced protection for sensitive downstream components. Installation is flexible, supporting both snap-on mounting to standard 35mm DIN rails and direct panel mounting. Manufacturing facilities undergo annual compliance inspections, ensuring each breaker is thoroughly tested for overcurrent performance, mechanical durability, and long-term reliability.