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Siemens BQ3M020 - Molded Case Breaker 20A 240V 3-Pole

Siemens
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Siemens BQ3M020 is a 3-pole molded case circuit breaker designed for thermal-magnetic overcurrent protection in commercial and light industrial power distribution systems. It is rated for 240V AC at 20A with a 10kA interrupting capacity at 240V, providing LI (Long-Time and Instantaneous) protection functions. The unit features a bolt-on connection, measures 2.756 x 2.756 x 3.937 inches, and weighs 0.992 lb, with a compact BQ frame construction suitable for Siemens panelboards. This breaker complies with applicable UL and NEMA standards for molded case circuit breakers. Typical applications include branch circuit protection in Siemens panelboards for lighting, appliance, and motor loads in 3-phase systems.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, BQ Series, Thermal Magnetic
  • Voltage Rating: 240V AC
  • Current Rating: 20A
  • Dimensions: 2.756 x 2.756 x 3.937 inch
  • Standards: UL, NEMA
  • Applications: Branch circuit protection in Siemens panelboards
  • Switch Type: Toggle
  • Configuration: 3-Pole, 3-Phase
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: Standard ambient
  • Shipping Dimensions: 2.756 x 2.756 x 3.937 inch
  • Phase: 3
  • Voltage: 240V
  • Amperage: 20A
  • AIC rating: 10kA@240V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: BQ
  • Trip Type: Thermal Magnetic
  • Panel Type: Siemens Panelboards
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Not applicable
  • Panel Style: Not applicable
  • Bus Type: Not applicable
  • Fuse Class: Not applicable
  • Insulation Temperature: Standard
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Bolt-On
  • Hz: 50/60
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: Not applicable
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 20A
  • Amperage Minimum: Not applicable
  • Nema Rating: Not applicable
  • Switch Style: Toggle
  • Wire Size: Not applicable
  • Certification: UL
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL 489
  • Compatible Frames: BQ
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: BQ
  • Current Rating: 20A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • Peak Pulse Current: Not applicable
  • Breakdown Voltage (MIN VBR@IT ) (V): Not applicable
  • Breakdown Voltage (VBR@IT) (V): Not applicable
  • Polarity: Not applicable
  • Operating Temperature Maximum Celsius: Not applicable
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 783643238220
  • GTIN: 00783643238220