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This E-T-A 3120-N series thermal circuit breaker, part number 3120-N521-P7T1-W01D-6A, provides reliable overcurrent protection and switch functionality in a single component. It features a thermal bimetal trip element and is suitable for protecting motors, pumps, transformers, and cables.
The breaker is rated for 6A current and operates at AC 415V or DC 50V. It is a double-pole device with a rocker actuator and is designed for panel mounting. The internal resistance is typically 1.5Ω.
Designed for applications requiring robust protection and easy reset, this circuit breaker ensures maximum equipment availability by preventing nuisance tripping and allowing quick resettability. Its positively trip-free mechanism guarantees reliable disconnection even with a blocked actuator.
Typical applications include medical and laboratory equipment, apparatus and machine construction, professional tools, household appliances, office machines, and audio equipment. It is approved by CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.
The current rating is 6A.
It is rated for AC 415V and DC 50V.
It is designed for panel mounting.
It features a rocker actuator.
The typical internal resistance for a single pole is 1.5Ω.
The typical life is 30,000 cycles for 1-pole DC operation and 50,000 cycles for 2-pole AC operation.
It is approved by CSA C22.2 No 235, GB 17701, IEC 60934, and UL1077.