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The E-T-A 4230-T120-K0CE-40A is a thermal-magnetic miniature circuit breaker (MCB) designed for reliable circuit protection. It features a 2-pole configuration and a current rating of 40A, with voltage ratings of 480VAC and 125VDC.
This breaker conforms to standards such as EN 60947-2, UL 1077, and UL 489, offering high rupture capacity. Key electrical specifications include a typical rupture capacity of 7,500A (Ics) and 10,000A (Icu) under IEC/EN conditions, and 10,000A under UL 489.
Designed for industrial and commercial applications, it mounts directly onto a standard DIN rail for easy installation. The breaker operates within an ambient temperature range of -35°C to +70°C and features screw terminals for secure connections. Its robust construction ensures a mechanical life of 20,000 cycles and an electrical life of 6,000 cycles.
The current rating is 40A.
It has a voltage rating of 480 VAC and 125 VDC.
This circuit breaker has 2 poles.
It is a thermal magnetic breaker.
The mounting type is DIN Rail.
The ambient temperature range is -35°C to +70°C.
Approval agencies include CSA C22.2 No 235 and UL1077.