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The E-T-A 4230-T120-K0BU-40A is a thermal-magnetic miniature circuit breaker designed for reliable circuit protection. It features a 2-pole configuration and a current rating of 40A, with a voltage rating of 480VAC or 125VDC.
This circuit breaker conforms to IEC/EN 60947-2 and UL 489 standards, offering a rupture capacity of up to 10,000A. It is suitable for DIN rail mounting and features a lever actuator with visual status indication. The operating ambient temperature range is -35°C to +70°C.
Typical applications include protection of cables, motors, generators, transformers, and power supplies in industrial process control systems, telecommunications equipment, and computer peripheral equipment. The terminals are screw type, supporting cable cross-sections up to 35 mm² with a tightening torque of 2 Nm max.
Environmental specifications include a degree of protection IP20 and compliance with insulation coordination overvoltage category III. It has undergone testing for vibration, shock, corrosion, and humidity according to relevant IEC standards.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 40A.
It is rated for AC 480V and DC 125V.
This circuit breaker has 2 poles.
It is designed for DIN rail mounting.
The rupture capacity is 10,000A to UL 489 and IEC/EN 60947-2 (Icu).
The ambient temperature range is -35°C to +70°C.
