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Cutler-Hammer WMZH1D20 - 20A, Miniature Circuit Breaker (MCB)

★★★★★
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Manufacturer :
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Replacement available
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Picture available on request
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CSA / UL Approved
Regular price $157.00
Sale price $157.00 Regular 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
Cutler-Hammer WMZH1D20 - 20A Miniature Circuit Breaker (MCB) - Circuit Breaker

Cutler-Hammer WMZH1D20 - 20A, Miniature Circuit Breaker (MCB)

Product description
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Meet the Cutler-Hammer WMZH1D20 — a compact, reliable 20A miniature circuit breaker designed to deliver dependable overcurrent protection in demanding electrical environments. Built with the engineering excellence that Cutler-Hammer is known for, this MCB is engineered to perform consistently in distribution panels where safety and uninterrupted operation matter most.

Key advantages of the WMZH1D20:

  • 20A current rating provides precise protection for circuits, preventing overheating and equipment damage in panelboards, switchboards, control panels, and OEM solutions.
  • Miniature Circuit Breaker (MCB) construction enables straightforward installation into standard distribution layouts without bulk or complexity.
  • Versatile for industrial, commercial, and OEM applications where dependable overcurrent protection and safe operation are critical, especially in distribution panels and motor control centers.
  • Simple integration into existing electrical infrastructure thanks to a proven design that aligns with common panel configurations.

Practical use scenarios:

  • On manufacturing lines where start-up surges and occasional overloads can occur, the WMZH1D20 provides consistent protection without nuisance trips.
  • In control panels for machinery and equipment where reliable fault interruption keeps downtime to a minimum.
  • In OEM cabinetry and equipment racks requiring a trusted, space-efficient protection device.

Why choose the Cutler-Hammer WMZH1D20 over alternatives? It combines brand heritage, a straightforward 20A protection profile, and compatibility with standard distribution gear, giving you a dependable safeguard for wiring and devices in distributed power systems.

Tips for selection and installation:

  • Confirm that a 20A MCB aligns with your circuit load and wire sizes to ensure optimal protection.
  • Ensure the WMZH1D20 is appropriate for your panelboard, switchboard, or OEM enclosure for straightforward integration.
  • After installation, verify the trip mechanism operates correctly under protective scenarios and follow your equipment manufacturer’s guidance for commissioning.

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

Solid quality component. Exactly as described on the product page.

Maintenance team · Ontario

Verified

Packaging was secure and the item arrived clean and ready for installation.

Electrical contractor · GTA

Verified

We’ve used this type on multiple jobs and it’s been reliable so far.

Panel shop · Canada/US

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

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