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The Sensata UPL1-4119-18 is a single-pole magnetic hydraulic delay 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. In overload conditions, the internal mechanism trips, opening the contacts and forcibly returning the handle to the OFF position. The "trip free" design ensures contacts will not remain closed during an overload, even if the handle is held ON.
This circuit protector is designed for panel mounting and is part of the APL/UPL series. It is important to note that the APL/UPL series is a legacy product line, and Sensata Technologies recommends the Airpax™ IAL series for new designs. While specific current and voltage ratings are not detailed here, the UPL1-4119-18 is recognized by UL per UL STD. 1077 and certified by CSA per CSA STD. C22.2–No. 235 as supplementary protectors.
Applications for this type of circuit breaker include industrial, military, and information processing systems where precision operation is required. The magnetic-hydraulic delay mechanism provides protection against overloads while allowing for normal switching operations. The single-pole configuration makes it suitable for protecting individual circuits.
| 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 Sensata UPL1-4119-18 is a magnetic hydraulic delay circuit breaker.
The UPL1-4119-18 circuit breaker has one pole.
The UPL1-4119-18 circuit breaker uses a lever actuator.
The Sensata UPL1-4119-18 is designed for panel mounting.
No, the Sensata UPL1-4119-18 is a legacy product and no new design-in orders are being accepted.