CHM6-630N Molded Case Circuit Breaker 630A Electronic Trip Multi-Voltage Breaking Dual Standard Certification MCCB

Features: Covers 240V (residential) → 690V (industrial high voltage)
Precise electronic tripping control
Rated current range: 250~630A continuously adjustable (set via Micrologic 2.3 trip unit), suitable for current demands from "medium-load feeders" to "heavy-load busbars".

Electronic trip unit with three-stage protection:
Long delay (Ir): Slow tripping during overload, with adjustable threshold based on load characteristics (e.g., motor starting curve) to avoid false tripping;
Short delay (Isd): Delayed tripping during the initial stage of a short circuit (non-fatal current), prioritizing power supply to critical circuits and reducing the scope of power outages;
Instantaneous (Im): Instantaneous tripping during severe short circuits, quickly isolating faults and protecting equipment safety.
Compared to thermal-magnetic tripping: Electronic tripping offers a more precise protection curve and more flexible threshold adjustment (supporting complex settings such as 0.4~1 times Ir), suitable for special loads such as capacitor compensation cabinets and variable frequency motors.
Standards and Compatibility

International certification: Complies with both IEC/EN 60947-2 (EU/International) and NEMA AB1 (North America) standards, directly meeting the access requirements for multinational projects.
Frequency: 50/60Hz compatible, suitable for domestic and international power grids.

Product Competitive Advantages
1. Electronic tripping technology, self-adaptive to the environment: Automatically compensates for the impact of temperature on protection parameters (e.g., derating at 40℃), ensuring protection accuracy; Fault memory: Records the cause of the most recent trip (overload/short circuit), assisting maintenance personnel in quickly locating problems.