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Cutler Hammer QCHW2040 - Molded Case 40A 240V 2-Pole Breaker

Cutler Hammer
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Cutler Hammer QCHW2040 is a 2-pole molded case circuit breaker from the QUICKLAG family, designed for thermal magnetic overcurrent protection with long time and instantaneous trip functions. It is rated for 40A at 240V, with a 22kA interrupting capacity at 240V, and supports 1-phase operation. The unit measures 3.8 in x 4.8 in x 2.2 in (Length/Depth x Height x Width), weighs 0.8 lb, and features a feed-thru connection with wire sizes accommodating AWG 14 to AWG 10 and AWG 14 to AWG 4 for aluminum or copper conductors. It is UL Listed and CSA Certified, with an operating temperature range of -13 to 158 °F (-25 to 70 °C). This breaker is typically applied in industrial and commercial distribution panels requiring reliable overcurrent protection.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic
  • Voltage Rating: 240V
  • Current Rating: 40A
  • Dimensions: 3.8 in x 4.8 in x 2.2 in (Length/Depth x Height x Width)
  • Standards: UL Listed, CSA Certified
  • Applications: Industrial and commercial distribution panels
  • Switch Type: Circuit Breaker
  • Configuration: 2-Pole
  • Coil Voltage Maximum: Not specified
  • Temp Rating: -13–158 °F (-25–70 °C)
  • Shipping Dimensions: Not specified
  • Phase: 1
  • Voltage: 240V
  • Amperage: 40A
  • AIC rating: 22kA@240V
  • Connection: Feed-Thru
  • Poles: 2
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: Not specified
  • Trip Type: Thermal Magnetic
  • Panel Type: Not specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: Not specified
  • Control Voltage Maximum: Not specified
  • MCM Size: Not specified
  • Metal Type: Not specified
  • Panel Style: Not specified
  • Bus Type: Not specified
  • Fuse Class: Not specified
  • Insulation Temperature: Not specified
  • Inductance: Not specified
  • Impedance: Not specified
  • Barrels: Not specified
  • Class Rating: Not specified
  • Diameter: Not specified
  • Velocity: Not specified
  • Clip Center: Not specified
  • Clas: Not specified
  • Mounting: Not specified
  • Hz: Not specified
  • Coil Material: Not specified
  • Horse Power: Not specified
  • Aux Contacts: Not specified
  • CPT: Not specified
  • Full Load Amps: Not specified
  • Dist Voltage: Not specified
  • Bucket Size: Not specified
  • Bucket Style: Not specified
  • Bucket Type: Not specified
  • Full Load Amp Maximum: Not specified
  • Full Load Amp Minimum: Not specified
  • Enclosure: Not specified
  • Relay Style: Not specified
  • Coil Voltage Minimum: Not specified
  • Wire: AWG 14 to AWG 10, AWG 14 to AWG 4, Aluminum/Copper
  • Amperage Maximum: 40A
  • Amperage Minimum: Not specified
  • Nema Rating: Not specified
  • Switch Style: Not specified
  • Wire Size: AWG 14 to AWG 10, AWG 14 to AWG 4, Aluminum/Copper
  • Certification: UL Listed, CSA Certified
  • Circuit Breaker Mounting Style: Not specified
  • Terminal Connection: Feed-Thru
  • Frequency Rating: Not specified
  • Phase Connection: 1-Phase
  • Standards: UL Listed, CSA Certified
  • Compatible Frames: Not specified
  • Installation Type: Not specified
  • Item QTY: Not specified
  • Nema Starter Size: Not specified
  • Breaker Frame: Not specified
  • Current Rating: 40A
  • Reverse Standoff Voltage: Not specified
  • Watts: Not specified
  • Peak Pulse Current: Not specified
  • Breakdown Voltage (MIN VBR@IT ) (V): Not specified
  • Breakdown Voltage (VBR@IT) (V): Not specified
  • Polarity: Not specified
  • Operating Temperature Maximum Celsius: 70 °C
  • Max Clamp Voltage: Not specified
  • On-State Current: Not specified


Product Identification
  • UPC: 786679387443
  • GTIN: 00786679387443