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This E-T-A 4230-T series miniature circuit breaker (MCB) is a thermal-magnetic type designed for reliable circuit protection. It is suitable for DIN rail mounting and features a lever actuator with a visual status indication.
The breaker offers a high rupture capacity of 10,000 A (AC/DC) according to UL 489 and IEC/EN 60947-2 standards. It is rated for 50A and supports various voltage ratings, including 480VAC and 125VDC, depending on the pole configuration and standard used.
Key electrical specifications include a 3-pole configuration, a 480V AC rating, and a 125V DC rating. The ambient operating temperature range is from -35°C to +70°C. Mechanical life is rated for 20,000 cycles, and electrical life for 6,000 cycles.
Typical applications include protection of cables, motors, generators, transformers, thyristors, silicon rectifiers, computers, industrial process control systems, telecommunications equipment, and power supplies. The terminals are screw type, supporting cable cross-sections up to 35 mm² with a maximum tightening torque of 2 Nm.
The current rating is 50A.
It supports AC voltage ratings up to 480V and DC voltage ratings up to 125V.
It has 3 poles.
It is a thermal magnetic miniature circuit breaker.
It is designed for DIN rail mounting.
The rupture capacity is 10,000 A according to UL 489 and IEC/EN 60947-2 standards.
The ambient temperature range is -35°C to +70°C.