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Cutler Hammer CH20L125R - Main Breaker Load Center 125A

Cutler Hammer
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Cutler Hammer CH20L125R is a 125-amp main breaker load center designed for residential and light commercial electrical distribution and overcurrent protection. This unit operates at 120/240 volts AC, single-phase, with a 20-space, 40-circuit configuration and a 10,000 AIC interrupting rating. The enclosure measures 21 inches in length/depth, 5.19 inches in height, and 14.31 inches in width, weighing 16 lb, and features a NEMA 1 indoor-rated steel construction with a surface mount design. It complies with UL 67 and CSA standards for safety and performance. Typical applications include main service panels in single-family homes, multi-unit dwellings, and small commercial buildings.

Key Features & Specifications
  • Type: Main breaker load center, single-phase, 3-wire, surface mount, steel enclosure
  • Voltage Rating: 120/240 V AC
  • Current Rating: 125 A
  • Dimensions: 21 in x 5.19 in x 14.31 in (Length/Depth x Height x Width)
  • Standards: UL 67, CSA
  • Applications: Residential and light commercial main service panels
  • Switch Type: Main breaker
  • Configuration: 20-space, 40-circuit
  • Coil Voltage Maximum: Not applicable (main breaker, not magnetic)
  • Temp Rating: 60/75°C
  • Shipping Dimensions: 21 in x 5.19 in x 14.31 in
  • Phase: Single-phase
  • Voltage: 120/240 V AC
  • Amperage: 125 A
  • AIC rating: 10,000 AIC
  • Connection: Main lugs or main breaker
  • Poles: 2-pole main breaker
  • Protection: Overcurrent and short-circuit
  • Functions: Main disconnect and branch circuit protection
  • Frame Size: CH
  • Trip Type: Thermal-magnetic
  • Panel Type: Main breaker load center
  • Breaker Type: Plug-on CH type
  • Control Voltage Minimum: Not applicable
  • Control Voltage Maximum: Not applicable
  • MCM Size: Not applicable
  • Metal Type: Steel
  • Panel Style: Surface mount
  • Bus Type: Tin-plated aluminum
  • Fuse Class: Not applicable
  • Insulation Temperature: 60/75°C
  • Inductance: Not applicable
  • Impedance: Not applicable
  • Barrels: Not applicable
  • Class Rating: Not applicable
  • Diameter: Not applicable
  • Velocity: Not applicable
  • Clip Center: Not applicable
  • Clas: Not applicable
  • Mounting: Surface mount
  • Hz: 60 Hz
  • Coil Material: Not applicable
  • Horse Power: Not applicable
  • Aux Contacts: Not applicable
  • CPT: Not applicable
  • Full Load Amps: Not applicable
  • Dist Voltage: Not applicable
  • Bucket Size: Not applicable
  • Bucket Style: Not applicable
  • Bucket Type: Not applicable
  • Full Load Amp Maximum: Not applicable
  • Full Load Amp Minimum: Not applicable
  • Enclosure: NEMA 1 indoor
  • Relay Style: Not applicable
  • Coil Voltage Minimum: Not applicable
  • Wire: Not applicable
  • Amperage Maximum: 125 A
  • Amperage Minimum: Not applicable
  • Nema Rating: NEMA 1
  • Switch Style: Main breaker
  • Wire Size: #14 to #2/0 AWG (copper/aluminum)
  • Certification: UL, CSA
  • Circuit Breaker Mounting Style: Plug-on
  • Terminal Connection: Screw lugs
  • Frequency Rating: 60 Hz
  • Phase Connection: Single-phase
  • Standards: UL 67, CSA C22.2 No. 29
  • Compatible Frames: CH type breakers
  • Installation Type: Surface mount
  • Item QTY: 1
  • Nema Starter Size: Not applicable
  • Breaker Frame: CH
  • Current Rating: 125 A
  • Reverse Standoff Voltage: Not applicable
  • Watts: Not applicable
  • 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: Not applicable
  • Max Clamp Voltage: Not applicable
  • On-State Current: Not applicable


Product Identification
  • UPC: 78211309760
  • GTIN: 00782113097602