AT1-B2-34-615-5D1-C
Littelfuse Inc.
The Littelfuse Inc. AT1-B2-34-615-5D1-C is a magnetic hydraulic delay circuit breaker. It features a panel mount design and a 15A current rating.
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The Sensata UPL2-27960-1 is a hydraulic magnetic circuit breaker from the APL/UPL series, designed for reliable power switching, circuit protection, and control. This legacy product 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, ensuring protection even if the handle is held.
Designed for industrial, military, and information processing applications, this circuit breaker is suitable for situations requiring precision operation. It is recognized by UL per UL STD. 1077 as a supplementary protector and certified by CSA per CSA STD. C22.2–No. 235. The UPL prefix designates versions certified by CSA. The UPL2-27960-1 is configured for panel mounting.
This product is a legacy component. Sensata Technologies recommends utilizing the Airpax™ IAL series for new design-ins. While the APL/UPL series offers various configurations, including multi-pole assemblies with mixed current ratings and delays, specific details for this model are limited to its breaker type and mounting.
IMPORTANT NOTICE: The APL/UPL is a legacy product and no new design-in orders are being accepted. We are also discontinuing the 205 series (APL with dust proof enclosure). If the specifications for any of these products are necessary for your system, Sensata Technologies recommends utilizing the Airpax™ IAL series.
| 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 UPL2-27960-1 is a hydraulic magnetic circuit breaker.
The UPL2-27960-1 is designed for panel mounting.
The UPL2-27960-1 features a lever actuator.
The UPL2-27960-1 is RoHS3 Compliant.
The Moisture Sensitivity Level (MSL) for the UPL2-27960-1 is 1 Unlimited.
The UPL2-27960-1 is REACH Unaffected.