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Siemens B370GFHH - GFCI Breaker 70A 3-Pole (208/120V)

Siemens
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Siemens B370GFHH is a 3-pole GFCI circuit breaker designed for ground fault protection in commercial and industrial electrical systems. It operates at 208/120 VAC with a 70 A current rating and a 65 kA interrupting capacity at 240 VAC. The bolt-on connection ensures secure installation in compatible Siemens panelboards, while its compact thermoplastic construction supports reliable performance in demanding environments. This breaker complies with UL 489 and CSA C22.2 standards for branch circuit protection. Typical applications include motor control centers, lighting panels, and distribution boards requiring ground fault protection.

Key Features & Specifications
  • Type: GFCI (Ground Fault Circuit Interrupter) with bolt-on mounting
  • Voltage Rating: 208/120 VAC
  • Current Rating: 70 A
  • Dimensions: 3.0 x 2.0 x 4.0 in
  • Standards: UL 489, CSA C22.2
  • Applications: Commercial and industrial panelboards, motor control centers
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: 120 VAC
  • Temp Rating: 40°C
  • Shipping Dimensions: 3.5 x 2.5 x 4.5 in
  • Phase: 3
  • Voltage: 208/120 VAC
  • Amperage: 70 A
  • AIC rating: 65 kA at 240 VAC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Ground fault
  • Functions: Overcurrent and ground fault
  • Frame Size: BQ
  • Trip Type: Thermal-magnetic
  • Panel Type: Siemens
  • Breaker Type: GFCI
  • Control Voltage Minimum: 120 VAC
  • Control Voltage Maximum: 120 VAC
  • MCM Size: 14 AWG to 1/0 AWG
  • Metal Type: Copper
  • Panel Style: Load center
  • Bus Type: Tin-plated
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: 1
  • Class Rating: Not applicable
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: 1.5 in
  • Clas: Not specified
  • Mounting: Bolt-on
  • Hz: 60 Hz
  • Coil Material: Copper
  • Horse Power: 10 HP at 240 VAC
  • Aux Contacts: No
  • CPT: No
  • Full Load Amps: 70 A
  • Dist Voltage: 208/120 VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 70 A
  • Full Load Amp Minimum: 70 A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: 120 VAC
  • Wire: Copper
  • Amperage Maximum: 70 A
  • Amperage Minimum: 70 A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Screw
  • Frequency Rating: 60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: BQ
  • Installation Type: Panelboard
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: BQ
  • Current Rating: 70 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not specified
  • 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: 783643123456
  • GTIN: 00783643123456