LEJ & LEJA Series
Hydraulic-Magnetic Circuit Breakers
Introduction 133
Configurations 134
Delay Curves 142
Decision Tables 143LEJ & LEJA Series
Hydraulic-Magnetic Circuit Breakers
INTRODUCTION
The 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.
FEATURES
Up to two poles, 2 amps to 20 amps rated current at 240VAC per pole
UL 489 listed and TV 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
SPECIFICATIONS
Agency Certification Rated Amperage Maximum Voltage per Pole Short Circuit Amperage
UL 489 2 to 20 amps 240 VAC, 50/60 Hz 5000
TV (EN60947-2) 2 to 20 amps 240 VAC, 50/60 Hz 5000
UL489 2 to 20 amps 240 VAC, 50/60 Hz 10000
UL489 2 to 20 amps 277 VAC, 50/60 Hz 10000
133 LEJ & LEJA Series - Introduction