CHM9-250L/3300 250A 35kA Molded Case Circuit Breaker

Product Competitive Advantages
“Strong Interruption” Safety Guarantee: 35kA ultimate breaking capacity, capable of quickly interrupting strong short-circuit currents (such as equipment short circuits and line faults), preventing the fault from spreading to the entire power distribution system and protecting core equipment such as distribution cabinets and cables.
Intelligent Protection Logic: Integrated overload protection (10In tripping characteristic) + short-circuit protection, real-time monitoring of current anomalies:
Slow tripping during overload to avoid false tripping;
Instantaneous tripping during short circuit to cut off dangerous current.
Durable Molded Case Design: The casing uses high-strength insulating material, offering:
Excellent insulation: preventing leakage and creepage;
Mechanical strength: impact resistance and dustproof, suitable for complex power distribution environments (such as factory workshops and basements).
Typical Application Scenarios
Industrial field: Factory power distribution trunk lines, motor control circuits (such as fans and pumps), power supply protection for automated production lines;
Commercial buildings: Distribution boxes, central air conditioning, elevators and other large load power distribution in shopping malls and office buildings;
Infrastructure: Low-voltage power distribution systems in data centers and communication rooms, ensuring the power supply safety of core equipment such as servers and switches.

The CNXE CHM9-250L/3300 molded case circuit breaker, with its core features of 250A high current capacity and 35kA high breaking capacity, combined with reliable protection and durable design, provides a dual guarantee of “safe interruption + stable operation” for medium and large low-voltage power distribution systems, making it an efficient solution for industrial and commercial power distribution.