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The E-T-A 3120-F321-P7T1-W02F-3A is a thermal circuit breaker designed for overload protection of motors, pumps, transformers, and cables. It functions as an ON/OFF switch with integral overcurrent protection, utilizing a bimetal trip element.
This two-pole breaker has a current rating of 3A and supports a voltage rating of 250 VAC or 50 VDC. It features a rocker actuator for operation and is designed for convenient snap-in panel mounting. The breaker offers reliable switching behavior with a positively trip-free mechanism.
Typical applications for this series include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, audio equipment, and machine tools. Options such as illumination, water splash protection, and auxiliary contacts are available for enhanced functionality.
Key technical data includes an interrupting capacity of 5000A at 250 VAC (UL 1077) and 1000A at 50 VDC (UL 1077). The typical life is rated for 30,000 operations under specific load conditions.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The circuit breaker has voltage ratings of 250VAC and 50VDC.
The current rating is 3 amperes.
It is a thermal breaker.
It is designed for panel mounting.
-30°C to 60°C.