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 Circuit Breakers
W28 Series Relay

Switchable or Push to Reset
Fuseholder-type Thermal Circuit Breaker
  • Switchable version combines on-off switch and circuit protection in a single unit
  • Approved to many international standards (push-to-reset type)
  • Replaces slow-blow glass cartridge fuse
  • Labor-saving snap-in mounting
  • Button extends for visual trip indication on push-to-reset model
  • Rocker on switchable model moves to "overload" position upon trip
    VDE, Demko, Semko
  • W58 Series Relay

    Push to Reset Only
    Thermal Circuit Breaker
  • 0.5 amp to 35 amp ratings
  • Cannot be manually tripped
  • Button extends for visual trip indication
  • Push button to reset breaker
  • Termination is screw or 0.250" QC
  • W33 Series Relay

    One- and Two-Pole
    Thermal Circuit Breaker
  • Combines on/off switch and circuit protection in a single unit.
  • 2 to 20 amp ratings (<2A types available as special order).
  • One or two pole sensing.
  • Lighted or non-lighted rocker actuator in various colors.
  • Convenient, snap-in mounting.
  • Optional auxiliary switch available.
  • Trip-free operation.
  • W23/W31 Series Relay

    Toggle or Push/Pull Actuator
    Thermal Circuit Breaker
  • 0.5 amp to 50 amp ratings may be used as on/off switch.
  • Cannot be reset against overload.
  • W23 has visible trip indicator.
  • Screw termination.
  • W6/W9 Series Relay

    Magnetic Hydraulic
    Circuit Breakers
  • Designed for the international market. UL recognized, CSA certified and VDE approved.
  • Ratings to 50 amps.
  • Heavy duty #10-32 stud connections (W9).
  • Optional 10 amp auxiliary switch.
  • Single toggle actiation of multipole units (W6).
  • Optional snap-in mounting (W6).
  • Variety of circuit functions.
  • Several delay curve options.
    VDE

  • **Specifications subject to changes**
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    W28 Series

    W58 Series

    W33 Series

    W23/W31 Series

    W6/W9 Series



    Free Acrobat

    Potter & Brumfield product specifications are available in Adobe Acrobat PDF format (ver3.0).

    Download a free copy of the Acrobat Reader software directly from Adobe.


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