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Square D HDF36020 - Molded Case 20A 600V 3-Pole Breaker

Square D
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The Square D HDF36020 is a 3-pole molded case circuit breaker from the Powerpact family, designed for thermal-magnetic overcurrent protection in industrial power distribution systems. It is rated for 600V AC, 20A continuous current, and provides LI (Long-Time and Instantaneous) trip functions with an 18kA interrupting capacity at 480V. This bolt-on breaker features an H Frame, measures 6.4 in x 4.09 in x 3.4 in (163 mm x 104 mm x 86 mm), weighs 4.136 lb, and accepts AWG 14 to AWG 3/0 aluminum or copper terminals (lugs not included). It complies with UL, CSA, NEMA, NOM-003-SCFI-2000, and IEC 60947-2 standards, and operates within a temperature range of -13°F to 158°F (-25°C to 70°C). Typical applications include motor control centers, panelboards, and switchboards requiring reliable branch circuit protection in three-phase systems.

Key Features & Specifications
  • Type: Molded Case, Thermal Magnetic, LI Trip
  • Voltage Rating: 600V AC
  • Current Rating: 20A
  • Dimensions: 6.4 in (163 mm) x 4.09 in (104 mm) x 3.4 in (86 mm) (H x W x D)
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Applications: Industrial power distribution, motor control centers, panelboards
  • Switch Type: Molded Case Circuit Breaker
  • Configuration: 3-Pole, 3-Phase
  • Coil Voltage Maximum: N/A
  • Temp Rating: -13°F to 158°F (-25°C to 70°C)
  • Shipping Dimensions: 6.4 in x 4.09 in x 3.4 in
  • Phase: 3
  • Voltage: 600V AC
  • Amperage: 20A
  • AIC rating: 18kA@480V
  • Connection: Bolt-On
  • Poles: 3
  • Protection: Thermal Magnetic
  • Functions: LI - Long-Time and Instantaneous Trip
  • Frame Size: H Frame
  • Trip Type: Thermal Magnetic
  • Panel Type: N/A
  • Breaker Type: Molded Case
  • Control Voltage Minimum: N/A
  • Control Voltage Maximum: N/A
  • MCM Size: N/A
  • Metal Type: N/A
  • Panel Style: N/A
  • Bus Type: N/A
  • Fuse Class: N/A
  • Insulation Temperature: N/A
  • Inductance: N/A
  • Impedance: N/A
  • Barrels: N/A
  • Class Rating: N/A
  • Diameter: N/A
  • Velocity: N/A
  • Clip Center: N/A
  • Clas: N/A
  • Mounting: Bolt-On
  • Hz: N/A
  • Coil Material: N/A
  • Horse Power: N/A
  • Aux Contacts: N/A
  • CPT: N/A
  • Full Load Amps: N/A
  • Dist Voltage: N/A
  • Bucket Size: N/A
  • Bucket Style: N/A
  • Bucket Type: N/A
  • Full Load Amp Maximum: N/A
  • Full Load Amp Minimum: N/A
  • Enclosure: N/A
  • Relay Style: N/A
  • Coil Voltage Minimum: N/A
  • Wire: AWG 14 to AWG 3/0 (Al/Cu)
  • Amperage Maximum: 20A
  • Amperage Minimum: N/A
  • Nema Rating: N/A
  • Switch Style: N/A
  • Wire Size: AWG 14 to AWG 3/0
  • Certification: UL, CSA, NOM
  • Circuit Breaker Mounting Style: Bolt-On
  • Terminal Connection: Bolt-On
  • Frequency Rating: N/A
  • Phase Connection: 3-Phase
  • Standards: UL, CSA, NEMA, NOM-003-SCFI-2000, IEC 60947-2
  • Compatible Frames: H Frame
  • Installation Type: Bolt-On
  • Item QTY: 1
  • Nema Starter Size: N/A
  • Breaker Frame: H Frame
  • Current Rating: 20A
  • Reverse Standoff Voltage: N/A
  • Watts: N/A
  • Peak Pulse Current: N/A
  • Breakdown Voltage (MIN VBR@IT) (V): N/A
  • Breakdown Voltage (VBR@IT) (V): N/A
  • Polarity: N/A
  • Operating Temperature Maximum Celsius: 70°C
  • Max Clamp Voltage: N/A
  • On-State Current: N/A


Product Identification
  • UPC: 785901675624
  • GTIN: 00785901675624