AIRPAX™ LEJ & LEJA Series Hydraulic-Magnetic Circuit Breakers

AIRPAX™ LEJ & LEJA Series Hydraulic-Magnetic Circuit Breakers

On Guard for Data Centers: State-of-the-art arc quenching between 208 and 277VAC

The AIRPAX™ LEJ/LEJA series circuit breaker meets the evolving demand for the high performance protection of critical data center and telecommunications applications requiring up to 277VAC per pole, UL 489 listing in the smallest case size currently available in the marketplace.

The LEJ/LEJA platform is based on the highly successful and field proven LEG/LEGA designs while incorporating state-of-the-art arc quenching technologies and offering voltage ratings that are well suited for global applications that require 208VAC through 277VAC ratings for increased power efficiency.

Typical applications include power distribution units (PDUs) used in data center enclosures, telecom AC power supplies and a variety of Industrial applications benefiting from the higher power density. Like the LEG/LEGA product family, the LEJ/LEJA series offers a variety of features including different terminations and actuators to meet most any requirements.


  • Up to two poles, 2 amps to 20 amps rated current at 240VAC per pole
  • UL 489 listed and TÜV approvals available
  • Up to 10,000AIC short circuit amperage rating
  • Low Depth “A” option provides a 31% lower depth compared to standard LEJ product
  • Maintains the high performance characteristics, reliability, panel cut out and mounting dimensions of LEG/LEGA products


Agency CertificationRated AmperageMaximum Voltage per PoleShort Circuit Amperage
UL 4892 to 20 amps240 VAC, 50/60 Hz5000
TÜV (EN60947-2)2 to 20 amps240 VAC, 50/60 Hz5000
UL 4892 to 20 amps240 VAC, 50/60 Hz10000
UL 4892 to 20 amps277 VAC, 50/60 Hz10000

More Info

We are honored to serve as a manufacturer’s rep for Sensata, one of the world’s leading suppliers of sensing, electrical protection, control and power management solutions. Sensata’s products improve safety, efficiency and comfort for millions of people every day in automotive, appliance, aircraft, industrial, military, heavy vehicle, heating, air-conditioning and ventilation, data, telecommunications, recreational vehicle and marine applications, to name a few.

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