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    LA, LH, Q4 Molded Case Circuit Breakers

    Basic thermal magnetic protection from 125 to 400A as part of the Square D portfolio of molded case circuit breakers.

    Basic thermal magnetic protection.

    Schneider Eletric Square D Picture
    LA, LH, Q4 Molded Case Circuit Breakers
    • Features

      LA, LH and Q4 molded case circuit breakers provide basic thermal magnetic protection. Their primary functions are to provide a means to manually open a circuit and automatically open a circuit under overload or short circuit conditions.
      Consider using PowerPact™ range of molded case circuit breakers for situations requiring circuit breaker accessories, communication, lugs and auxiliaries.  

      LA and LH Features

      • Available in 2-3 pole design
      • Fixed thermal magnetic trip units from 125-400A at up to 600 Vac and 250 Vdc
      • Interrupting ratings 30 kA at 480 Vdc and 10 kA at 250 Vdc. LH is available with 35 kA at 480 Vac and 50 kA at 250 Vdc
      • Automatic molded case switches are available in LH (2 and 3 pole)
      • Available in Unit-mount, I-line and rear-connect constructions
      • UL 489, CSA, IEC certified

      Q4

      • Available in 2-3 pole design
      • Thermal magnetic trip units from 250-400A at up to 240 Vac
      • Interrupting ratings 25 kA at 240 Vac
      • Automatic molded case switches available with a 400 A, 240Vac rating (2 and 3 pole)
      • mount and I-line constructions
      • UL 489, CSA, IEC certified

      Benefits

      Economical thermal magnetic protection

      Applications

      Construction
      Commercial Buildings
      Control Equipment Panels
      Industrial Buildings
      Mining
      OEM Commercial