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The E-T-A 3120-F321-P7T1-W14DR3-20A 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 2-pole breaker has a current rating of 20A and a voltage rating of 250 VAC or 50 VDC. It features a rocker actuator for operation and is designed for panel mounting. The breaker offers reliable switching behavior with a positively trip-free mechanism.
Key technical specifications include an ambient temperature range of -30 to 60 °C and an interrupting capacity of 5000A at 250 VAC (UL 1077). Typical operational life is rated for 30,000 to 50,000 cycles depending on the voltage and load conditions.
Typical applications for this circuit breaker include medical and laboratory equipment, apparatus and machine construction, professional tools, household and garden appliances, office machines, and audio equipment.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 20A.
It is rated for 250 VAC and 50 VDC.
This is a 2-pole circuit breaker.
It uses a rocker actuator.
The mounting type is Panel Mount.
The ambient temperature range is -30 to 60 °C.
Typical life is rated for 30,000 to 50,000 operations depending on conditions.