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    • QBH370 – EATON 3P70A 240V BOLT ON BREAKER

    Standard · 70A · 3-Pole · 240V · Bolt-On

    The QBH370 – EATON 3P70A 240V Bolt-On Breaker is a reliable circuit protection solution designed for three-phase systems. With a current rating of 70 amps and voltage capacity of 240 volts, this breaker ensures optimal performance and safety. Ideal for various applications, it guarantees efficient operation while safeguarding your electrical systems.

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    SKU ETNQBH370 Categories , ,
    Specifications
    BrandEaton
    TypeStandard (Thermal-Magnetic)
    Amperage70 A
    Poles3-Pole
    Voltage240V
    Interrupting Rating10 kA
    MountingBolt-On
    Frame / SeriesQBH
    Catalogue #QBH370
    Panel Compatibility

    The Eaton QBH370 is a bolt-on style breaker from Eaton's QBH frame series, designed for use in compatible Eaton/Cutler-Hammer CH (Type-CH) panelboards that accept bolt-on three-phase breakers. With a 70A, 3-pole, 240V, 10kA rating, it is suited for commercial and light-industrial three-phase branch-circuit protection.

    • Mount type: Bolt-on (not plug-in)
    • Poles: 3-pole — requires a panel with available three-phase bolt-on space
    • Interrupt rating: 10kA AIC @ 240V

    Panel compatibility depends on your specific loadcentre or panelboard model. Send us your panel model number and we'll confirm fit before you order.

    The QBH370 is designed for Eaton/Cutler-Hammer CH-series panelboards that accept bolt-on breakers. Because compatibility depends on your specific panel model and vintage, we recommend sending us your panel's model number so our team can confirm the correct fit before you order.

    Yes, it matters significantly. Bolt-on breakers like the QBH370 are mechanically fastened to the bus bar with screws, providing a more secure connection — common in commercial and industrial panelboards. Plug-in breakers clip onto the bus. These two types are not interchangeable, so always verify your panel accepts bolt-on breakers before ordering.

    Availability of specific Eaton QBH-frame breakers can vary. Northern Breaker Group specializes in obsolete and hard-to-find breakers across Canada, with counter locations in Calgary, Edmonton, and Vancouver. If the QBH370 is difficult to source elsewhere, contact us for a quote — we maintain extensive inventory of legacy and current Eaton breakers.

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    Contact Northern Breaker Group

    Experience the advantage of working with Canada's fastest growing electrical supply network—where local expertise meets national capabilities.
    Whether you’re a contractor needing same-day pickup in Calgary, an facility manager sourcing obsolete parts in Edmonton, or a Vancouver electrician requiring marine-rated components, Northern Breaker Group is your trusted electrical supply partner.

    For General Inquiries:

    Visit any of our three locations or use our online quote system to connect with the Northern Breaker Group network.

    For Location-Specific Needs:

    Calgary: 403-520-0014

    Edmonton: 780-758-6122

    Vancouver: 604-283-6336

    Reach out to us today to discuss your needs.

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