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The E-T-A 4230-T120-K0DE-25A is a thermal-magnetic miniature circuit breaker (MCB) designed for reliable circuit protection. It conforms to EN 60947-2, UL 1077, and UL 489 standards, making it suitable for a wide range of applications.
This 2-pole breaker has a current rating of 25A and a voltage rating of 480VAC or 125VDC. It offers a high rupture capacity of up to 10,000A, ensuring safety in fault conditions. The breaker is designed for DIN rail mounting, facilitating easy installation in control panels and electrical enclosures.
Key features include a positively trip-free snap action mechanism for reliable switching and visual status indication. The terminals are screw-type, with a maximum tightening torque of 2 Nm and support cable cross-sections up to 35 mm².
Typical applications include the protection of cables, motors, generators, transformers, thyristors, silicon rectifiers, computers, industrial process control systems, telecommunications equipment, and power supplies.
For a 2-pole configuration, AC ratings are 240 V (UL 489) or 415 V (IEC/EN 60947-2), and DC ratings are 125 V (2-pole series) under both IEC and UL.
DIN rail mount.
-35°C to +70°C.
Under IEC/EN 60947-2: 7,500 A (Ics AC), 10,000 A (Icu AC/DC). Under UL 489: 10,000 A AC/DC.
IP20.
Screw terminals with a tightening torque of 2 Nm and a stripping length of 14 mm.
Mechanical life: 20,000 cycles. Electrical life: 6,000 cycles.