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This E-T-A 4230-T series miniature circuit breaker (MCB) is a thermal-magnetic type designed for reliable circuit protection. It is rated for 35A and supports AC voltages up to 480V and DC voltages up to 125V, with a 2-pole configuration.
The breaker offers high rupture capacity, meeting standards like IEC/EN 60947-2 and UL 489. It is designed for DIN rail mounting and features screw terminals for secure connections. The device operates within an ambient temperature range of -35°C to +70°C.
Typical applications include protection of cables, motors, generators, transformers, and electronic equipment such as computers and telecommunication systems. Its robust construction ensures reliable switching behavior and a long service life, with mechanical life rated for 20,000 cycles and electrical life for 6,000 cycles.
The 4230-T120-K0CE-35A has voltage ratings dependent on standard: AC 240 V per UL 489 (2,3-pole), AC 480Y/277 V per UL 1077 (2,3,4-pole), AC 415 V per IEC/EN 60947-2 (2,3,4-pole), and DC 125 V (2-pole series). The product label specifies 480 VAC / 125 VDC.
The ambient temperature range is -35°C to 70°C.
The rupture capacity is 10,000 A for both AC and DC under IEC/EN 60947-2 (Icu) and UL 489. For IEC/EN 60947-2 (Ics) AC it is 7,500 A, and for DC it is 10,000 A.
This model has 2 poles.
The electrical life is 6,000 cycles at rated load.
It mounts on DIN rail and uses screw terminals. The tightening torque is 2 Nm maximum, with a stripping length of 14 mm and cable cross section up to 35 mm².