RMM1 series plastic shell circuit breakerDetailed product description：

The RMM1 series plastic shell circuit breaker is suitable for use in distribution networks with AC 50Hz rated working voltage of 400V and rated current up to 630A and below. Circuit breakers with 400A and below can also be used for motor protection. The rated insulation voltage of this circuit breaker is 690V.

Distribution circuit breakers are used in distribution networks to distribute electrical energy and protect lines and power equipment from overload, undervoltage, and short circuits.
Circuit breakers are used to protect electric motors from overload, undervoltage, and short circuits.
The RMM1 series plastic shell circuit breaker can be used for infrequent switching of circuits and infrequent starting of motors under normal conditions.
This circuit breaker can be installed vertically or horizontally.

Release performance
Current setting value of instantaneous overcurrent release

Shell level rated current (lnm) A	For distribution purposes		Used for protecting electric motors
63H	ln≤40A	ln≥50A	ln≤40A	ln≥50A
	500A	10ln	500A	12ln
100C	ln≤40A	ln≥50A	ln≤40A	ln≥50A
	500A	10ln	500A	12ln
100S、H、L	10ln		12ln
250S、H、L	10ln		12ln
400S、H、L	10ln		12ln
630S、H、L	10ln		-
800S、H	10ln		-

Overload protection feature (for time limited disconnection action feature)

Test current name	Set current multiple	scheduled time		Initial state
		ln≤40A	ln≥50A≤ln
Promise not to trip current	one point zero five	≥1h	≥2h	Starting from the cold state
Agreed tripping current	one point three zero	<1h	<2h	Starting from the hot state

Overload protection feature (inverse time limit disconnection action feature)

Test current name	Set current multiple	scheduled time	Initial state
Promise not to trip current	one point zero five	≥2h	Starting from the cold state
Agreed tripping current	one point three zero	<2h	Starting from the hot state

RMM1 series plastic shell circuit breaker