Siemens B320 20A 3-Pole Thermal Magnetic Breaker – Plug-In – 240V

The Siemens B320 thermal magnetic circuit breaker provides dependable 20A, 3-pole protection for 240V circuits. Designed for Siemens Type BL panelboards and load centers, it delivers reliable performance for both commercial and residential electrical distribution applications. Its plug-in design and robust construction ensure safe and efficient operation.

Voltage and Rating

• Amperage: 20 Amps
• Poles: 3-Pole
• Voltage Rating: 240 Volts AC
• Interrupting Capacity: 10 kAIC

Key Specifications

• Breaker Type: Thermal Magnetic
• Mounting Type: Plug-In
• Product Range: BL
• Application: Commercial and residential branch circuit protection
• Compatible Panels: Siemens Type BL panelboards and load centers

Technical Specifications

• Wire Size Range: #14–4 AWG Copper/Aluminum
• Connection Terminals: Lug terminals
• Terminal Tightening Torque: 35 lb-in
• Certifications: UL Listed

Product Data

• Manufacturer: Siemens
• Brand: Siemens
• Model Number: B320
• UPC: 783643263697

Dimensions

• • Height: 3.0 in
  • Width: 3.0 in
  • Depth: 2.56 in
  • Weight: 0.948 lbs

Returns are easy

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

FREE Shipping on orders over $149.

My Circuit Breakers 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).

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In rare circumstances, My Circuit Breakers may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.

My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.