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B120 - 20Amp Circuit Breaker

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

Purchase Options: Brand New

Quantity
$13.99

B120 - 20Amp Circuit Breaker Description

B120 - 20Amp Circuit Breaker

Keep your circuits protected without any hassle with the Siemens B120. This 1-pole, 20A breaker is built for everyday use in residential, commercial, and light industrial applications. Rated at 120VAC with a 10kA interrupting capacity, it shields your wiring and equipment from overloads and short circuits, giving you peace of mind that your system stays safe and running smoothly.

Its thermal-magnetic trip reacts quickly when you needed but avoids unnecessary trips, so your circuits stay protected without interrupting normal operation.

Key Features and Benefits

  • 20A rating for single-phase circuits
  • Thermal-magnetic trip for fast overload and short-circuit protection
  • 120VAC with 10kA interrupting capacity
  • Bolt-on design for secure, panel-ready installation
  • Compact size fits standard panels and motor control centers
  • Type BL construction for durability

Technical Specifications

  • Part Number: B120
  • Type: BL – Molded Case Circuit Breaker
  • Poles: 1
  • Amperage Rating: 20A
  • Voltage Rating: 120VAC
  • Interrupting Capacity: 10kA
  • Mounting: Bolt-on
  • Depth: 3 in
  • Width: 3 in
  • Height: 1 in
  • Product Family: General Purpose MCCBs

Material Compliance and Certifications

  • UL 489 certified, meeting North American safety and performance standards for reliable circuit protection.

Where It Works Best

Perfect for use in:

  • HVAC systems,
  • Pumps
  • And motor-driven equipment

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:1.0
  • Height:3.56
  • Depth:2.38
  • Poles:1
  • Amperes:20
  • A.I.C. Rating & Volts:10k @ 120VAC
  • Type:BL
  • Approx Dimensions:1.00"W x 3.56"L x 2.38"D
  • Additional Notes:HACR rated, Bolt-on Molded Case Circuit Breaker, 40°C

Returns are easy

You may return unused items within 30 days of delivery for a full refund.

FREE shipping on breaker orders over $100 and all other items with orders over $500.

CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).

Same Day Shipping

We strive to ship out your items within one business day.

In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

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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