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CIS40 - Circuit Breaker 40A 600V 3-Pole

United Fuses
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The CIS40 is a high-performance industrial circuit breaker designed for reliable overcurrent protection in demanding electrical systems. It operates at a standard voltage rating and is rated for a specific current capacity, ensuring safe interruption of fault currents. The unit features a robust construction with a compact frame size and weighs 5.19 lb, making it suitable for panel mounting in control cabinets. It complies with relevant industry standards for safety and performance, typically used in motor control centers, distribution panels, and heavy machinery applications.

Key Features & Specifications
  • Type: Industrial circuit breaker, thermal-magnetic trip
  • Voltage Rating: 600V AC
  • Current Rating: 40A
  • Dimensions: Standard frame size
  • Standards: UL 489, CSA C22.2
  • Applications: Motor control, distribution panels, industrial machinery
  • Switch Type: Toggle
  • Configuration: 3-pole
  • Coil Voltage Maximum: 600V
  • Temp Rating: 40°C
  • Shipping Dimensions: 4.5 x 3.2 x 2.8 in
  • Phase: 3
  • Voltage: 600V
  • Amperage: 40A
  • AIC rating: 10kA
  • Connection: Line and load lugs
  • Poles: 3
  • Protection: Overload and short circuit
  • Functions: On/Off switching, trip indication
  • Frame Size: 100A
  • Trip Type: Thermal-magnetic
  • Panel Type: Industrial
  • Breaker Type: Molded case
  • Control Voltage Minimum: 24V
  • Control Voltage Maximum: 600V
  • MCM Size: 1/0 AWG
  • Metal Type: Steel
  • Panel Style: NEMA 1
  • Bus Type: Copper
  • Fuse Class: Not applicable
  • Insulation Temperature: 105°C
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Panel
  • Hz: 50/60
  • Coil Material: Copper
  • Horse Power: 20 HP at 480V
  • Aux Contacts: 1 NO/NC
  • CPT: Not included
  • Full Load Amps: 40A
  • Dist Voltage: 600V
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 40A
  • Full Load Amp Minimum: 0A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: 24V
  • Wire: 14 AWG to 1/0 AWG
  • Amperage Maximum: 40A
  • Amperage Minimum: 0A
  • Nema Rating: 1
  • Switch Style: Toggle
  • Wire Size: 14 AWG to 1/0 AWG
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Panel
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: 100A frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: 100A
  • Current Rating: 40A
  • 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: 05171239206
  • GTIN: 00051712392068