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Circuit Breaker

Square D | MA36450 | Circuit Breaker | 450A | 3-Pole | 600V

★★★★★
Part Number MA36450
Amperes 450
Poles 3
Voltage 600
Product Type Circuit Breaker
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Manufacturer :Square D
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $310.00
Sale price $310.00 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
Allen-Bradley 140M-C2E-C16 - Standard Magnetic Trip Breaker Motor Protection - Standard Magnetic Trip Breaker Motor Protection

Square D | MA36450 | Circuit Breaker | 450A | 3-Pole | 600V

Regular price $310.00
Sale price $310.00 Regular price
Unit price
Product description
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Square D MA36450 Circuit Breaker is a rugged, high-capacity protection device built for demanding three‑phase power systems. Rated at 450A and designed for 600V service, this 3‑pole breaker delivers reliable overcurrent protection where reliability and exact specifications matter in maintenance, retrofit, or replacement projects.

Key advantages that differentiate the MA36450

  • High current capacity at 450A to handle demanding load profiles without nuisance tripping.
  • Three-pole configuration provides balanced protection for all three phases, simplifying wiring and protecting three-phase equipment in unison.
  • 600V compatibility suitable for industrial distribution panels and commercial electrical systems operating up to 600 volts.
  • Exact compatibility reference the part number MA36450 is the most reliable guide for matching footprint, mounting, and trip characteristics in your enclosure.

Ideal applications

  • Maintenance: replace worn or aging breakers to restore original performance in existing panels.
  • Retrofit: upgrade or reconfigure three-phase circuits while preserving correct protection and coordination.
  • Replacement: when an exact MA36450 specification is required to maintain panel compatibility and electrical safety.

Compatibility & ordering guidance

Before placing an order, confirm fit and ratings on the panel label. The MA36450 part number is the most dependable reference for ensuring compatibility with your Square D enclosure and distribution setup. If you’re replacing an existing MA36450, this exact model will preserve the intended trip characteristics and mounting footprint.

Practical installation notes

  • Always de-energize the system and follow proper lockout/tagout procedures before removing or installing the breaker.
  • Verify mounting alignment and panel interior clearance to ensure smooth operation and reliable tripping.
  • Inspect accompanying accessories and mounting hardware to maintain correct alignment and protection performance.

Specifications at a glance

  • Amperage: 450A
  • Poles: 3-Pole
  • Voltage: 600V

Contact sales@ampstate.com

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What Our Customers Say

4.9 (38 reviews)

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

Verified

Exactly what we needed for a shutdown replacement. No surprises.

Plant · Shutdown

Verified

Good communication and clear updates while the order was processed.

Project · Coordination

Verified

Looks and feels like a proper industrial-grade part. Works as expected.

Service · Field install

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Email us at sales@ampstate.com for pricing, availability, alternates, and project support.

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