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This Schurter Inc. T12-221-20-ND thermal circuit breaker, part number 4410.0103, is a single-pole device designed for reliable circuit protection. It features a thermal tripping mechanism and a reset actuation type, with quick connect terminals for easy installation.
The breaker is rated for AC circuits up to 240 VAC and DC circuits up to 28 VDC. It handles a current range of 0.05 to 15/16 A, with a specific rating of 20A. The conditional short circuit capacity is 1 kA at 240 VAC.
Designed for industrial environments, this circuit breaker has a degree of protection of IP40 on the front side. It operates within a temperature range of -5 °C to 60 °C and offers good resistance to vibration and shock.
Key specifications include a dielectric strength greater than 1.5 kV (50 Hz) and 2.5 kV (1.2/50 μs impulse), and an insulation resistance greater than 100 MΩ at 500 VDC. The typical endurance is rated at 5000 switching cycles.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The rated voltage is 240 VAC and 28 VDC.
The current rating is 20A.
This is a 1-pole circuit breaker.
The allowable operation temperature is -5 °C to 60 °C.