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The E-T-A 4230-T110-K0DU-20A is a thermal-magnetic miniature circuit breaker (MCB) designed for reliable circuit protection. It features a single pole configuration and is suitable for DIN rail mounting.
This breaker has a current rating of 20A and supports multiple voltage ratings, including AC 277V and DC 60V, with higher ratings available for multi-pole configurations. It boasts a high rupture capacity of up to 10,000A (Icu) according to UL 489 and IEC/EN 60947-2 standards.
The device operates within an ambient temperature range of -35°C to +70°C and features screw terminals with a maximum tightening torque of 2 Nm. Its mechanical life is rated for 20,000 cycles, and electrical life for 6,000 cycles.
Typical applications include the protection of cables, motors, generators, transformers, and electronic equipment such as computers and telecommunication systems. The breaker provides a visual status indication and a positively trip-free snap action mechanism for reliable switching.
The circuit breaker is rated for AC 240V (IEC/EN 60947-2), AC 277V (UL 1077), AC 480Y/277V (UL 489), and DC 60V (UL 1077/489). For DC 125V, two poles in series are required.
The circuit breaker is rated for 20A continuous current.
The circuit breaker is designed for DIN rail mounting with screw terminals.
The ambient temperature range is -35°C to +70°C.
The rupture capacity is 10 kA at 277VAC (UL 489), 7.5 kA at AC 240V (IEC/EN 60947-2), and 10 kA DC (UL 489).
Mechanical life is 20,000 cycles and electrical life is 6,000 cycles.
The circuit breaker has IP20 degree of protection.