EA3-B0-22-650-1DB-HB
Littelfuse Inc.
The Littelfuse Inc. EA3-B0-22-650-1DB-HB is a 3-pole circuit breaker designed for panel mounting. It features a magnetic hydraulic delay mechanism and a 50A current rating.
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The Sensata APL/UPL series, including the APL111-21631-3, are hydraulic magnetic circuit protectors designed for reliable power switching, circuit protection, and control. These devices function similarly to an ON-OFF switch, opening the circuit upon overload conditions. The APL/UPL series is a legacy product line, and no new design-in orders are being accepted. Sensata Technologies recommends the Airpax™ IAL series for new designs.
The APL111-21631-3 features a panel mount type and a lever actuator for manual operation. It is a 3-pole protector, meaning it can control or protect three separate circuits simultaneously. The "trip free" mechanism ensures that the internal contacts will not remain closed under overload conditions, even if the handle is held in the ON position. These protectors were designed for industrial, military, and information processing applications where precision operation is required.
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. The APL/UPL line offers various configurations, including series, shunt, and relay types, with a choice of delays and ratings. Multi-pole assemblies allow for a mix of current ratings, delays, and internal circuit configurations.
| Qty | Low | High |
|---|---|---|
| 1+ | $0.99 | $0.99 |
Estimated market price range - modelled values for guidance only, not live distributor offers.
Panel Mount
Magnetic (Hydraulic Delay)
Lever
3
RoHS3 Compliant
1 Unlimited
REACH Unaffected