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The Schurter 4420.0289 is a thermal-magnetic circuit breaker designed for use in industrial appliances. This 3-pole breaker offers a rated current of 20A and a rated voltage of 480V AC (IEC) or 277V AC (UL/CSA), with a DC voltage rating of 65V.
It provides high short-circuit performance with a conditional short-circuit capacity of 5 kA at 240V AC / 65V DC (IEC) and up to 10 kA under specific UL conditions. The breaker is designed for DIN-rail mounting and features a manual ON/OFF actuation type with a positively trip-free mechanism. The permissible wire cross-section ranges from 1.5 to 25 mm² (16 to 4 AWG).
Environmental and mechanical specifications include an operating temperature range of -20°C to 60°C, IP40 degree of protection from the front side, and a lifetime of 6000 switching cycles at 1x Ir. It also meets various approval standards including CSA and UL.
This circuit breaker is suitable for applications requiring reliable overcurrent protection in demanding industrial environments. Its robust construction and compliance with international standards ensure safe and effective operation.
| 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 240V AC (IEC), 277V AC (UL/CSA), and 65V DC.
The current rating is 20A.
It is designed for DIN rail mounting.
The ambient temperature range is -20°C to 60°C.
The conditional short-circuit capacity is 5 kA at 240V AC / 65V DC (IEC) and up to 10 kA under specific UL conditions.
It is a thermal-magnetic, 3-pole circuit breaker.