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Cutler Hammer CH20L125C - 1-Pole 125A Thermal-Magnetic Breaker (10 kAIC)

Cutler Hammer
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Cutler Hammer CH20L125C is a molded case circuit breaker designed for primary overcurrent and short-circuit protection in industrial power distribution systems. It operates at 120/240 VAC with a continuous current rating of 125 A, featuring a 10 kAIC interrupting capacity at 240 VAC. The unit measures 29.13 inches in length/depth, 3.88 inches in height, and 14.31 inches in width, weighing 15 lb, with a compact, plug-in mounting style and a thermal-magnetic trip mechanism. It complies with UL 489 and CSA C22.2 standards, ensuring reliable performance in demanding environments. This breaker is typically applied in commercial and industrial panelboards, switchboards, and load centers for feeder and branch circuit protection.

Key Features & Specifications
  • Type: Molded case circuit breaker, thermal-magnetic trip, plug-in mounting
  • Voltage Rating: 120/240 VAC
  • Current Rating: 125 A
  • Dimensions: 29.13 in x 3.88 in x 14.31 in (Length/Depth x Height x Width)
  • Standards: UL 489, CSA C22.2
  • Applications: Commercial and industrial panelboards, switchboards, load centers
  • Switch Type: Thermal-magnetic
  • Configuration: 1-pole
  • Coil Voltage Maximum: Not applicable (thermal-magnetic)
  • Temp Rating: 40°C ambient
  • Shipping Dimensions: 29.13 in x 3.88 in x 14.31 in
  • Phase: 1-phase
  • Voltage: 120/240 VAC
  • Amperage: 125 A
  • AIC rating: 10 kAIC at 240 VAC
  • Connection: Line and load terminals
  • Poles: 1
  • Protection: Overcurrent and short-circuit
  • Functions: Thermal-magnetic trip
  • Frame Size: CH
  • Trip Type: Fixed thermal-magnetic
  • Panel Type: Load center or panelboard
  • Breaker Type: Molded case
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Copper and steel
  • Panel Style: Plug-on
  • Bus Type: Tin-plated 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: Plug-in
  • Hz: 50/60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not specified
  • Aux Contacts: Not included
  • CPT: Not included
  • Full Load Amps: 125 A
  • Dist Voltage: 120/240 VAC
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: 125 A
  • Full Load Amp Minimum: 0 A
  • Enclosure: Open
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Copper or aluminum
  • Amperage Maximum: 125 A
  • Amperage Minimum: 0 A
  • Nema Rating: Not applicable
  • Switch Style: Not applicable
  • Wire Size: #14 AWG to #1/0 AWG
  • Certification: UL 489, CSA
  • Circuit Breaker Mounting Style: Plug-in
  • Terminal Connection: Screw-type
  • Frequency Rating: 50/60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 489, CSA C22.2
  • Compatible Frames: CH series
  • Installation Type: Panelboard or load center
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: CH
  • Current Rating: 125 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: 78211309757
  • GTIN: 00782113097572