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B1E Supplementary Protector
These branch circuit breakers are available in two terminal configurations: standard box terminals that accept multiple conductors and ring-tongue terminals. All breakers mount on standard 35 mm DIN rail. Bus connectors and feeder terminal facilitate mounting and wiring of multiple miniature circuit breaker arrays in control panel assemblies. Breakers can also be reverse feed.

  • Complete range of UL 1077 recognized miniature circuit breakers up to a 125 A current rating
  • Breakers mount on standard 35 mm DIN rail
  • Standard ratings of 5kA at 480Y/277Vac, 10kA at 60/110Vdc (1P) and 110/220Vdc (2P)

  • Suitable for supplementary protection
  • Thermal-magnetic over current protection - three levels of short-circuit protection, categorized by B, C and D curves
  • Trip-free design - breaker cannot be defeated by holding the handle in the ON position
  • Captive screws cannot be lost
  • Fulfill UL 1077, IEC 60947-2 standard
  • Field installable shunt trip and auxiliary switch SUB_sequent mounting
  • Module width of only 0.71 in (18 mm) per pole (for 1-63 A)
  • Contact position indicator (red/green)
  • Possibility for locking the toggle in ON or OFF position


UL 1077 Recognized

Certification File:

E355991 (UL) 263005 (CSA)

Compliant to:

CSA C22.2 No. 235, IEC/EN 60947-2, CE, RoHS

Rated Current (A)


Number of Poles

1, 2, 3, 4

Rated Operational Voltage( 50/60 Hz)

480 Y / 277 Vac, 60 Vdc (1P), 125 Vdc (2P)

Instantaneous Tripping Type

B (3~5 In), C (5~10 In), D (10~20 In), 8~12 In (80-125 A only)