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What are the default settings for my Magnum breaker?

The factory default settings for the 520 series trip unit are:

  • LDPU = 1.0
  • LDT = 2
  • SDPU = 2.5
  • SDT = 0.1
  • INST = 2.0
  • GFPU = 0.4 (breakers 800A to 3000A) or 0.25(breakers greater than 3000A) (LSIG/LSIA only)
  • GFT = 0.1 (LSIG only)
  • Incom address = 999 hex (520MC only)
  • Maintenance mode = 0/1 and R5 (520MC only)

Additional information on the 520 series trip units

The factory default settings for the 1150+ trip unit are:

Additional information on the 1150+ trip unit