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Siemens BQCH3B070 - Molded Case Circuit Breaker 70A 480V

Siemens
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Save $-1,370.08
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  • Low stock - 3 items left
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Siemens BQCH3B070 is a 3-pole molded case circuit breaker designed for overcurrent protection in commercial and industrial electrical systems. It operates at 480V with a 70A current rating and provides LI (Long-Time and Instantaneous) trip functions for precise fault management. This bolt-on breaker weighs 2 lb and features a thermal magnetic protection mechanism housed in a compact frame compatible with Siemens panelboards. It is rated for 14kA interrupting capacity at 480V, meeting stringent safety standards for 3-phase applications. The BQCH3B070 is typically used in Siemens panelboards for branch circuit protection in manufacturing facilities, data centers, and commercial buildings.

Key Features & Specifications
  • Type: Molded Case Circuit Breaker, BQCH Series, Thermal Magnetic
  • Voltage Rating: 480V AC
  • Current Rating: 70A
  • Dimensions: Standard molded case frame size
  • Standards: UL 489, CSA C22.2
  • Applications: Branch circuit protection in Siemens panelboards for industrial and commercial power distribution
  • Switch Type: Toggle handle
  • Configuration: 3-pole, 3-phase
  • Coil Voltage Maximum: Not applicable (thermal magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 4.5 x 3.0 x 2.5 in
  • Phase: 3
  • Voltage: 480V
  • Amperage: 70A
  • AIC rating: 14kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous
  • Frame Size: BQCH
  • 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: Copper alloy contacts
  • Panel Style: Bolt-on
  • Bus Type: Not specified
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • 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 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 70A
  • Dist Voltage: 480V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 70A
  • Full Load Amp Minimum: 70A
  • Enclosure: Open frame
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 70A
  • Amperage Minimum: 70A
  • Nema Rating: Not specified
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 2 AWG
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Line and load lugs
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2 No. 5
  • Compatible Frames: Siemens BQCH panelboards
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: BQCH
  • Current Rating: 70A
  • 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: 40°C
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: Not available
  • GTIN: Not available