CA1-B0-46-640-321-KF
Littelfuse Inc.
The Littelfuse Inc. CA1-B0-46-640-321-KF is a single-pole, magnetic hydraulic delay circuit breaker. It features a 40A current rating and a 120V voltage rating.
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The Sensata-Airpax UPL555-1208-3 is a hydraulic magnetic circuit breaker designed for reliable power switching, circuit protection, and control. It features a lever actuator for manual operation, similar to an ON-OFF switch. Upon overload, the internal mechanism trips, opening the contacts and forcibly returning the handle to the OFF position. This protector is 'trip free,' meaning the internal contacts will not remain closed under overload conditions, even if the handle is held in the ON position.
This circuit breaker is designed for panel mounting. It is part of the APL/UPL series, which are recognized by UL and certified by CSA as supplementary protectors. The APL/UPL series offers various configurations including series, shunt, and relay types with a choice of delays and ratings. Multi-pole assemblies are also available.
IMPORTANT NOTICE: The APL/UPL series, including the UPL555-1208-3, is a legacy product. No new design-in orders are being accepted, and Sensata Technologies recommends utilizing the Airpax™ IAL series for new designs.
| Qty | Low | High |
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| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The UPL555-1208-3 is a hydraulic magnetic circuit breaker.
The UPL555-1208-3 is designed for panel mounting.
The UPL555-1208-3 features a lever actuator.
No, the UPL555-1208-3 is a legacy product and no new design-in orders are being accepted.