| Category | |
| Manufacturer Name | |
| Actuator Type | |
| Breaker Type | |
| Current Rating | |
| Current Rating (Amps) | |
| Mounting Type | |
| Number of Poles | |
| Voltage Rating |
The Sensata APL/UPL series APL11-1-66-503-B is a hydraulic magnetic circuit protector with a 50A current rating and a 277V voltage rating. It features a 2-pole configuration and a lever actuator, designed for panel mounting.
This circuit breaker provides reliable, low-cost power switching, circuit protection, and circuit control. The handle operates like an ON-OFF switch under normal load conditions. Upon overload, an internal mechanism trips, opening the contacts and forcibly returning the handle to the OFF position. The protector is "trip free," meaning the internal contacts will not remain closed in the presence of an overload, even if the handle is held in the ON position.
This product is part of the APL/UPL legacy line. Sensata Technologies recommends the Airpax™ IAL series for new design-ins, as new orders for the APL/UPL series are not being accepted. While designed for industrial, military, and information processing applications, it is suitable for any situation requiring precision operation.
Most versions of the APL family are recognized by UL per UL STD. 1077 as supplementary protectors and certified by CSA per CSA STD. C22.2–No. 235 as supplementary protectors and are designated with the UPL prefix.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
The current rating is 50A.
The voltage rating is 277V.
It has 2 poles.
It is a Magnetic (Hydraulic Delay) breaker.
It is designed for panel mounting.
No, this is a legacy product and new design-in orders are not being accepted.