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Square D HDL36125SA - Molded Case Circuit Breaker 125A 600V

Square D
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The Square D HDL36125SA is a Powerpact H-frame molded case circuit breaker designed to provide reliable overcurrent and short-circuit protection for three-phase industrial power distribution systems. It features a 125A current rating and a 600V AC voltage rating, housed in a compact, bolt-on unit measuring 163 mm H x 104 mm W x 86 mm D and weighing 4.2 lb. This thermal-magnetic breaker is engineered for compliance with UL, CSA, NEMA, and IEC 60947-2 standards, ensuring robust performance in demanding environments. Its 18kA interrupting rating at 480V and integrated 110/130V AC shunt trip make it suitable for controlling and protecting feeders, motors, and other critical loads within industrial control panels and switchgear.

Key Features & Specifications
  • Type: Powerpact H-Frame Molded Case Circuit Breaker with Thermal-Magnetic Protection
  • Voltage Rating: 600V AC
  • Current Rating: 125A
  • Dimensions: 163 mm H x 104 mm W x 86 mm D (6.4 in x 4.09 in x 3.4 in)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial power distribution, motor protection, feeder protection
  • Switch Type: Circuit Breaker
  • Configuration: Bolt-On
  • Coil Voltage Maximum: 130V AC (Shunt Trip)
  • Temp Rating: -2 to 70 °C (28 to 158 °F)
  • Shipping Dimensions: Not Specified
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 125A
  • AIC rating: 18kA @ 480V AC
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: Long Time and Instantaneous Trip
  • Frame Size: H
  • Trip Type: Thermal Magnetic
  • Panel Type: Not Specified
  • Breaker Type: Molded Case
  • Control Voltage Minimum: 110V AC (Shunt Trip)
  • Control Voltage Maximum: 130V AC (Shunt Trip)
  • MCM Size: Min. 14 AWG, Max. 3/0 AWG (Copper/Aluminum)
  • Metal Type: Not Specified
  • Panel Style: Not Specified
  • Bus Type: Not Specified
  • Fuse Class: Not Applicable
  • Insulation Temperature: Not Specified
  • Inductance: Not Specified
  • Impedance: Not Specified
  • Barrels: Not Applicable
  • Class Rating: Not Specified
  • Diameter: Not Applicable
  • Velocity: Not Applicable
  • Clip Center: Not Applicable
  • Class: Not Specified
  • Mounting: Bolt-On
  • Hz: 50/60 Hz
  • 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 Applicable
  • Bucket Style: Not Applicable
  • Bucket Type: Not Applicable
  • Full Load Amp Maximum: Not Specified
  • Full Load Amp Minimum: Not Specified
  • Enclosure: Not Specified
  • Relay Style: Not Applicable
  • Coil Voltage Minimum: 110V AC (Shunt Trip)
  • Wire: Copper or Aluminum
  • Amperage Maximum: 125A
  • Amperage Minimum: Not Specified
  • Nema Rating: Compliant
  • Switch Style: Not Specified
  • Wire Size: 14 AWG to 3/0 AWG
  • Certification: UL, CSA, NOM
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Lug
  • Frequency Rating: 50/60 Hz
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Compatible Frames: Powerpact H-Frame
  • Installation Type: Fixed
  • Item QTY: 1
  • Nema Starter Size: Not Applicable
  • Breaker Frame: H
  • Current Rating: 125A
  • 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: 70 °C
  • Max Clamp Voltage: Not Applicable
  • On-State Current: Not Applicable


Product Identification
  • UPC: 785901568483
  • GTIN: 00785901568483