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CLS CLS40FBC - 40A 3-Pole Molded Case Circuit Breaker

United Fuses
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The CLS40FBC is a 40-amp, 3-pole circuit breaker designed for branch circuit protection in industrial power distribution systems. It operates at 600V AC with a 65kAIC rating, housed in a compact frame with bolt-on connections for secure panel mounting. This breaker features a thermal-magnetic trip mechanism and is UL 489 listed for compliance with North American safety standards. Typical applications include motor control centers, lighting panels, and general-purpose load centers in manufacturing facilities.

Key Features & Specifications
  • Type: Thermal-magnetic circuit breaker, molded case
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: Standard frame size
  • Standards: UL 489
  • Applications: Branch circuit protection in industrial panels
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: N/A
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: Standard
  • Phase: 3-phase
  • Voltage: 600V AC
  • Amperage: 40A
  • AIC rating: 65kA
  • Connection: Bolt-on
  • Poles: 3
  • Protection: Overcurrent and short circuit
  • Functions: Circuit isolation and protection
  • Frame Size: CLS
  • Trip Type: Thermal-magnetic
  • Panel Type: Load center
  • Breaker Type: Molded case
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: Copper alloy
  • Panel Style: Industrial
  • Bus Type: Aluminum or copper
  • Fuse Class: N/A
  • Insulation Temperature: 105°C
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Panel mount
  • Hz: 50/60
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: 40A
  • Dist Voltage: 600V AC
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: 40A
  • Full Load Amp Minimum: N/A
  • Enclosure: Open
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: N/A
  • Amperage Maximum: 40A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: Toggle
  • Wire Size: N/A
  • Certification: UL 489
  • Circuit Breaker Mounting Style: Bolt-on
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489
  • Compatible Frames: CLS
  • Installation Type: Panel mount
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: CLS
  • Current Rating: 40A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT ) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 40°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A
  • Weight: 5.19 lb


Product Identification
  • UPC: Not provided
  • GTIN: Not provided