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This E-T-A 4230-T series miniature circuit breaker (MCB) is a thermal-magnetic type designed for DIN rail mounting. It features a 2-pole configuration, a 20A current rating, and a voltage rating of 480VAC/125VDC.
The breaker is built in accordance with EN 60947-2, UL 1077, and UL 489 standards, offering high rupture capacity. It has a degree of protection of IP20 and operates within an ambient temperature range of -35°C to +70°C.
Typical applications include protection of cables, motors, generators, transformers, thyristors, silicon rectifiers, computers, industrial process control systems, telecommunications equipment, and power supplies. The breaker utilizes screw terminals with a maximum tightening torque of 2 Nm and supports cable cross-sections up to 35 mm².
Mechanical specifications include a typical life of 20,000 cycles and electrical life of 6,000 cycles. Environmental testing includes vibration, shock, corrosion, and humidity resistance.
The current rating is 20A.
It has a voltage rating of 480 VAC and 125 VDC.
It has 2 poles.
It is designed for DIN rail mounting.
The ambient temperature range is -35°C to +70°C.
The rupture capacity (Ics) is 7,500 A AC / 10,000 A DC, and (Icu) is 10,000 A AC/DC.