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Fusible Panelboard Switch

Federal Pioneer QMQB1136 - 100A, 600V, 3-Pole Panelboard Switch / Switchboard Unit | AmpState

Part Number QMB221TW
Series QMQB
Amperes 100
Poles 2
Voltage 600
Product Type Fusible Panelboard Switch
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Manufacturer :Federal Pioneer / Federal Pacific
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $1,110.00
Sale price $1,110.00 Regular price
Unit price
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Seamless online shopping experience guaranteed with easy shipping and returns policy.

Shop with Confidence: Our Products come with a Reliable Year-Long Warranty.

Icon
Secure transaction
Icon
FREE & fast shipping on orders over $49
Icon
CSA approved with 1 year warranty
Icon
30 day returns
Square D QMB221TW – 30A/30A, 240V, 2-Pole Fusible Panelboard Switch Split – QMB Series

Federal Pioneer QMQB1136 - 100A, 600V, 3-Pole Panelboard Switch / Switchboard Unit | AmpState

Product description
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The Federal Pioneer QMQB1136 is a purpose-built 3-pole fusible panelboard switch designed specifically for lighting and distribution panelboards. With a 100 A rating and a 600 V maximum, this unit from the QMQB series delivers dependable load switching and robust overcurrent protection when used with the appropriate upstream protection and fuse class. Built by Federal Pioneer (Federal Pacific), it’s a trusted choice for solid electrical distribution in commercial and light industrial environments.

Key advantages

  • Three-pole design for balanced distribution—streamlines wiring and supports reliable operation across three-phase or multi-wire panelboards.
  • Panelboard-ready performance—100 A nominal current at up to 600 V provides a clear path for load control of substantial lighting and distribution circuits.
  • QMQB family compatibility—a purpose-built fusible switch that fits Federal Pioneer panelboards with compatible upstream protection schemes, ensuring cohesive system design.
  • Safety through proper protection—renders load switching and overcurrent protection when paired with appropriate upstream protection and fuse class, safeguarding equipment and wiring.
  • Brand trust—backed by Federal Pioneer / Federal Pacific, a long-standing name in electrical distribution equipment.
  • Field-assembled reliability—designed for robust, on-site assembly within Federal Pioneer panelboard ecosystems, aligning with the brand’s panelboard philosophy.

Ideal use cases

  • Retrofits or upgrades in lighting and distribution panelboards that require a reliable fusible switching solution.
  • New installations where a 3-pole, 100 A, 600 V panelboard switch is specified to enable safe load control and fuse-protected distribution.
  • Projects needing a robust, field-assembled switch integrated into Federal Pioneer panelboard systems with compatible upstream protection schemes.

How it helps you work smarter

The QMQB1136 isn’t just a switch—it’s a controlled point of protection in your electrical distribution chain. By delivering precise amperage handling and a clear path for upstream protective devices and fuse classification, it helps you design safer, more maintainable panelboards. Its 3-pole configuration simplifies wiring layouts and supports dependable operation across shared lighting and power distributions.

Practical considerations

  • Verify upstream protection and fuse class compatibility to ensure full protection performance.
  • Confirm panelboard enclosure and bus compatibility with the QMQB1136 for a seamless fit and reliable operation.
  • Plan for periodic inspection of connections and protective elements as part of standard maintenance routines in panelboard systems.

Specifications at a glance

  • Current rating: 100 A
  • Maximum voltage: 600 V
  • Poles: 3-pole
  • Type: Fusible panelboard switch
  • Series: QMQB
  • Applications: Lighting and distribution panelboards

For engineers and electricians designing or upgrading distribution systems, the QMQB1136 offers a concrete, high-integrity fusible switching solution that aligns with Federal Pioneer’s panelboard approach. Trust AmpState to provide this purpose-built component for robust load control and compliant overcurrent protection in lighting and distribution panelboard setups.

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What Our Customers Say

4.9 (38 reviews)

General feedback we often hear from customers purchasing industrial electrical parts.

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Matched our existing hardware and fit as expected. Clean install.

Maintenance · Retrofit work

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Quick confirmation on details and a smooth ordering process.

Purchasing · Fast turnaround

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Came well packed. Labeling made receiving and staging easy.

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