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The E-T-A 4230-T110-K0DU-25A is a thermal-magnetic miniature circuit breaker (MCB) conforming to EN 60947-2, UL 1077, and UL 489 standards. It is designed for DIN rail mounting and features a lever actuation with visual status indication.
This single-pole breaker has a current rating of 25A and can handle voltages up to 277VAC or 60VDC. It boasts a high rupture capacity of 10,000A AC/DC to UL 489 and IEC/EN 60947-2 (Icu), and 7,500A AC (Ics) to IEC/EN 60947-2.
Environmental specifications include an operating temperature range of -35°C to +70°C, IP20 degree of protection, and compliance with vibration, shock, corrosion, and humidity tests per IEC 60068 standards. The terminals are screw type, supporting cable cross-sections up to 35 mm² with a maximum tightening torque of 2 Nm.
Typical applications include protection of cables, motors, generators, transformers, thyristors, silicon rectifiers, computers, industrial process control systems, telecommunications equipment, and power supplies.
The circuit breaker is rated for operation at up to 277VAC under UL 489, and up to 480Y/277VAC under UL 1077. For DC, ratings are 60VDC (UL) and 80VDC (IEC/EN 60947-2).
The rupture capacity is 10,000A under UL 489 and IEC/EN 60947-2 Icu, and 7,500A under IEC/EN 60947-2 Ics.
The ambient operating temperature range is -35°C to +70°C.
This circuit breaker is designed for DIN rail mounting.
It features screw terminals with a maximum tightening torque of 2 Nm and an acceptable cable cross-section of ≤35 mm².
Mechanical life is 20,000 cycles, and electrical life under load is 6,000 cycles.
Yes, it is UL 489 listed for branch circuit protection, as well as UL 1077 for supplementary protection.