Circuit Protection

Mission Critical PDU Breaker

Mission Critical PDU Breaker

The "Mission Critical Breaker" is specifically designed for use as a Main Breaker in a PDU in order to maximize system coordination with PDU branches. Our Circuit Breakers are used by many UPS, Generator, and Paralleling equipment manufacturers as part of their standard designs. Masterpact NT and NW CBs meets the needs for the critical power market for its small size, flexible configuration, low maintenance, increased productivity and reduced downtime. >more...

LA High Magnetic Withstand Circuit Breaker
High performance circuit protection and coordination for mission critical power applications
The Square D Mission Critical Breaker is designed specifically for use as a Main Breaker in a Power Distribution Unit (PDU). Incorporating a special thermal magnetic selective tripping functions, the breaker assures that a fault on a single branch circuit does not cascade causing a shutdown of an entire PDU. Mission Critical Circuit Protection for your Mission Critical Application. 

With a history of reliability and performance unequalled in the marketplace, the Square D®  LA Circuit Breaker has been specifically upgraded to deliver superior electrical protection for mission critical loads. The new LA High Magnetic Withstand Circuit Breaker, with handle ratings of 200 A, 225 A, 250 A and 400 A, achieves system coordination and selectivity second to none when used in conjunction with Square D QO®  circuit breakers.

The superior system of protection helps ensure that only the upstream branch breaker nearest the fault trips to clear the upstream branch breaker nearest the fault trips to clear the fault, helping to eliminate unnecessary tripping and downtime. The LA High Magnetic Withstand Circuit Breaker is ideal for mission critical loads in hospitals, data centers and industrial environments, as well as at the machine level.
Full featured performance

  • Cost-effective alternative to electronic circuit breakers
  • High level of selective coordination provides maximum thermal-magnetic circuit protection with a minimum of circuit interruption
  • Unparalleled high magnetic withstand rating helps to prevent outages and minimizes downtime
  • Wide range of ampacities available to meet the unique needs of specific power systems
  • Factory preset magnetics take the guesswork out of breaker adjustments
  • Field-installable accessories permit easy customization using optional devices, including shunt trips, under voltage, auxiliary switches, bell alarm and terminations
  • Available in both unit mount and I-Line® Panelboard construction for easy installation
  • UL 489 listed and CSA certified

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