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MH120R - 20Amp Circuit Breaker

  • 20 Amp
  • 10k @ 120VAC
  • 1 Pole

Purchase Options:

MH120R - 20Amp Circuit Breaker Description

MH120R - 20Amp Circuit Breaker

Need an MH120R 20 Amp Circuit Breaker to keep your existing electrical system running? When replacing a circuit breaker, getting the correct form, fit, and electrical ratings matters. The MH120R single-pole thermal magnetic circuit breaker is designed for use in compatible electrical panels that accept this specific breaker configuration. Rated at 20 amps with a 10kA interrupting capacity at 120VAC, this space-saving breaker provides thermal magnetic protection against overloads and short circuits. Its slim 0.50-inch width helps in installations with limited panel space, while its plug-in mounting configuration supports replacement in approved electrical assemblies.

Key Features and Benefits

  • 20 Amp, Single-Pole Configuration:
  • 10kA Interrupting Capacity at 120VAC:
  • Space-Saving Design:
  • Thermal Magnetic Protection:
  • Plug-In Mounting:
  • MH/MM Frame Designation:
  • Form, Fit, and Functional Replacement:

Technical Specifications

  • Part Number: MH120R
  • Product Type: Thermal Magnetic Circuit Breaker
  • Number of Poles: 1
  • Amperage Rating: 20 Amps
  • Voltage Rating: 120VAC
  • Interrupting Capacity (A.I.C.): 10kA at 120VAC
  • Frame Type: MH; MM
  • Mounting Type: Plug-In
  • Configuration: Space-Saving
  • HACR Rated: Yes
  • Temperature Rating: 40°C
  • Height: 3.25 inches
  • Width: 0.50 inches
  • Depth: 2.56 inches
  • Dimensions: 0.50"W × 3.25"H × 2.56"D
  • Shipping Weight: 1.50 lbs.

Material Compliance and Certifications

The MH120R 20 Amp Thermal Magnetic Circuit Breaker has several specified electrical characteristics that help determine its suitability for an existing installation. These include its 20-amp rating, 10kA interrupting capacity at 120VAC, HACR designation, and 40°C temperature rating.

Where It Works Best

  • Legacy Electrical Panel Maintenance
  • Residential Electrical Systems
  • Commercial Electrical Installations
  • Space-Constrained Electrical Panels
  • Heating, Air Conditioning, and Refrigeration Applications
  • Electrical Repair and Replacement Projects

Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.

Siemens®, I-T-E®, and Murray® are registered trademarks of Siemens AG. Products sold are surplus, used, or refurbished and are NOT supplied by Siemens AG or its affiliates.

Specifications

  • Width:0.5
  • Height:3.25
  • Depth:2.56
  • Poles:1
  • Amperes:20
  • A.I.C. Rating & Volts:10k @ 120VAC
  • Type:MH; MM
  • Approx Dimensions:0.50"W x 3.25"L x 2.56"D
  • Additional Notes:40°C, HACR Rated, Plug-In, Space-Saving, Thermal Magnetic Circuit Breaker - discontinued by the Manufacturer

Returns are easy

You may return unused items within 30 days of delivery for a refund, subject to our Return Policy.


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CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).

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