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Fusible Panelboard Switch

Federal Pioneer QMQB7032 - 600A, 240V, 3-Pole Panelboard Switch / Switchboard Unit | AmpState

Part Number QMB221TW
Series QMQB
Amperes 600
Poles 2
Voltage 240
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
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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 QMQB7032 - 600A, 240V, 3-Pole Panelboard Switch / Switchboard Unit | AmpState

Product description
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Meet the Federal Pioneer QMQB7032 — a rugged 600A, 240V, 3-pole fusible panelboard switch designed for reliable lighting and distribution panelboards. Built to integrate into standard panelboard footprints, this unit delivers dependable load switching plus essential overcurrent protection when paired with the correct upstream protection and fuse class.

Designed for three-phase feeders, the QMQB7032 keeps all three phases balanced, helping to protect downstream equipment from fault currents and simplifying panel integration. It’s a practical, purpose-built solution for upgrading or configuring fused switching in three-phase distribution systems.

  • Key specs: Amperage 600 A, Voltage 240 V, Poles 3, Series QMQB
  • Type: Fusible panelboard switch
  • Applications: Lighting and distribution panelboards
  • Brand lineage: Federal Pioneer / Federal Pacific — a trusted name in electrical distribution

What makes the QMQB7032 unique

  • Integrates seamlessly with QMQB panelboard configurations, providing a straightforward upgrade path for systems that require fused switching on three-phase feeders.
  • Three-pole design ensures balanced control across all phases, enhancing protection for downstream equipment against fault currents.
  • When paired with appropriate upstream protection and fuse class, it delivers essential overcurrent protection without needing separate devices in the main feeder.
  • Durably constructed for commercial and industrial installations, suitable for new builds or retrofit projects where fused switching is preferred for distribution reliability.

Ideal use cases

  • New commercial or industrial builds requiring a dedicated three-phase fused switch in the panelboard
  • Retrofits to add fused switching where legacy open-circuit protection is inadequate
  • Lighting and distribution feeder circuits that demand reliable, consolidated switching and overcurrent protection

How it supports safety and compliance

  • Always pair with the appropriate upstream protection and fuse class according to electrical codes and manufacturer guidance to ensure optimal performance and compliance.
  • Balanced three-phase switching reduces the risk of nuisance trips and improves overall distribution reliability.

Specification snapshot

  • Amperage: 600 A
  • Voltage: 240 V
  • Poles: 3
  • Series: QMQB
  • Type: Fusible panelboard switch

Practical tips for installers and specifiers

  • Plan ahead for space in the panelboard enclosure and ensure compatible upstream protection and fuse class are on hand during installation.
  • Use this unit to consolidate switching and protection in three-phase feeders, reducing panel clutter and potential fault pathways.
  • Consider this switch as a long-term upgrade for distribution reliability in busy commercial environments or industrial facilities.

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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.

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