Square D HDL36020C Circuit Breaker, 20A, 3-Pole, 600V

Engineered for demanding industrial service, the Square D HDL36020C circuit breaker delivers reliable three‑phase protection in a compact, durable package. With a 20 A rating across 3 poles and a 600 V maximum, this unit is designed to safeguard motors, drives, and heavy equipment in modern electrical distributions. Built to stand up to busy maintenance and replacement projects, it helps keep critical systems running smoothly and safely.

Key specifications at a glance

• Brand/Part: Square D HDL36020C
• Amperage: 20 A
• Poles: 3 (three‑pole configuration for balanced three‑phase protection)
• Voltage rating: Up to 600 V
• Application: Industrial electrical service, maintenance, and replacement projects
• Compatibility note: Verify fit by part number HDL36020C and your specific application requirements

Why this HDL36020C stands out

• Three‑pole design for three‑phase systems—provides balanced protection across all phases, reducing the risk of phase imbalances and equipment damage.
• Industrial-grade reliability—built to endure the rigors of constant operation in control panels, machine rooms, and distributed power setups.
• Clear compatibility pathway—part number driven verification ensures you’re selecting the exact device that matches your panel and protection scheme.

Ideal for

• Electrical contractors and integrators performing new installations or OEM panel builds
• Maintenance teams conducting routine replacements in existing Square D installations
• Industrial facilities needing dependable overcurrent protection for motors, drives, and line-side circuits

Use cases and practical tips

Use the HDL36020C in three‑phase distribution panels where a 20 A circuit breaker is required, particularly in motor control centers and equipment racks. When planning a swap or upgrade, reference the part number HDL36020C to confirm compatibility with your enclosure and bus configurations. For best results, ensure the panel’s voltage and phase requirements align with the 600 V rating and 3‑pole design, and review any manufacturer installation guidelines for clearances and mounting.

Compatibility & support

Notes: Verify fit by part number and application requirements. If you’re unsure about compatibility with your specific panel or enclosure, or you need help confirming that HDL36020C is the right choice for your project, send us a message and we’ll assist with part number validation and setup considerations.