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Square D HDL36020AABCSK - Molded Case 20A 3-Pole Breaker (600V)

Square D
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Square D HDL36020AABCSK is a molded case circuit breaker designed for thermal magnetic overcurrent protection in industrial power distribution systems. This 3-pole unit is rated for 20 Amps at 600VAC, providing long-time and instantaneous (LI) trip functions with an interrupting capacity of 18kAIC at 480VAC. The breaker features a PowerPacT H frame with unit mount construction, feed-thru connection, and line and load side lugs supporting AWG 14 to AWG 3/0 aluminum or copper conductors, weighing 5.19 lb. It is certified to UL 489, CSA, NEMA, IEC, and CE standards, ensuring compliance with global safety and performance requirements. Typical applications include commercial and industrial power distribution panels, motor control centers, and switchboards requiring reliable branch circuit protection.

Key Features & Specifications
  • Type: Molded Case
  • Manufacturer: Square D
  • Current Rating: 20 Amps
  • Voltage Rating: 600/690 VAC
  • Poles: 3
  • Phase: 3
  • Frame Type: PowerPacT H (HDL)
  • Mounting Type: Unit Mount
  • Interrupt Rating: 18kAIC at 480VAC, 25kAIC at 240VAC, 14kAIC at 600VAC
  • Protection: Thermal Magnetic
  • Trip Unit: LI (Long-time and Instantaneous)
  • Connection Type: Feed-Thru, Line and Load Side Lug
  • Wire Gauge: AWG 14 to AWG 3/0 Aluminum/Copper
  • Weight: 5.19 lb
  • Certifications: UL 489, CSA, NEMA, IEC, CE
  • Operating Temperature: -25 to 70 °C
  • Actuator Type: Toggle