What is a DC rated battery circuit breaker (BCB)?

The DC rated Battery Circuit Breaker (BCB) provides still overcurrent protection, if correctly coordinated, even though it is not as fast as the fuses. These breakers must be set at a safe intervention value based on the battery short circuit current.

What size breaker should I use for a battery cabinet?

Round the breakers up to next common size and you have600A vs 500A. If the battery cabinet design is only for capacity (meaning all cabinets must be on line to handle discharge) one could use 500A breaker, maybe even 450A in the scenario above. Sometimes it is requested that 600A be used however.

How to choose a circuit breaker?

The highest voltage that may be applied over all end ports, the distribution type, and how the circuit breaker is completely integrated into the system all contribute to the overall voltage rating. It is essential to choose a circuit breaker with sufficient voltage capacity that corresponds to the end application.

Can a breaker control panel handle a fault current?

It is commonly acknowledged that the breaker control panel can handle a fault current no higher than the interrupting rating. Interrupting a circuit breaker does not automatically cause the system to fail. At any given moment, it is possible to compute the maximum fault current that a system can supply.

What types of circuit breakers are available?

DC Circuit Breakers up to 800A available. Breaker options include: Shunt Trips, Auxiliary Contacts and Under Voltage Releases. Acid resistant powder coat finish using a five stage immersion pre-treatment process.

What is a circuit breaker trip unit?

A circuit breaker’s electronic trip unit can be programmed to detect when the current is too high or too low and then trigger a trip signal. Enclosures prevent dirt, moisture, mold, dust, containments, and tampering. Terminal connections & trip units should be tightened to factory torque for proper maintenance.