Square D HJL36020 20A 3P 600V Circuit Breaker | AmpState

Meet the Square D HJL36020—a genuine 20 Amp, 3-pole, 600V circuit breaker designed to protect panelboards, load centers, and electrical distribution systems. This device is ideal for replacement projects and stocking spares to keep your bill of materials aligned with the original part number, ensuring seamless compatibility in critical applications.

Key specifications

• Manufacturer: Square D
• Part number: HJL36020
• Type: Circuit Breaker
• Amperage: 20 A
• Poles: 3
• Voltage rating: 600V
• Applications: panelboards, load centers, electrical distribution
• Availability: AmpState

Why this genuine Square D part stands out

• Designed to fit and function within systems built for Square D assemblies, preserving original protection coordination and physical fit.
• The 3-pole design supports three-phase distribution, making it suitable for commercial and industrial panel configurations.
• 600V rating aligns with typical electrical distribution environments, helping maintain code-compliant protection across circuits.
• Stocking this part helps you maintain BOM accuracy, reducing engineering changes and downtime when replacements are needed.
• Supported by AmpState, with guidance available to confirm compatibility and fit for your specific panel and setup.

Ideal use cases

• Replacement projects in existing panelboards and load centers where the original part number is required for compatibility and documentation.
• Spare inventory to ensure quick shutdown prevention and rapid restoration of service in commercial and industrial facilities.
• Panel refurbishments or upgrades where maintaining identical protection devices supports consistent trip characteristics and system behavior.

Compatibility and support

Unsure if HJL36020 matches your exact installation? Message AmpState to confirm fit and compatibility with your panel, bus configuration, and protection scheme. We’ll help verify that this 20 A, 3-pole, 600V breaker aligns with your original equipment and BOM requirements.

Practical tips for installation and handling

• Always follow standard electrical safety practices and your facility’s lockout/tagout procedures when replacing breakers.
• Keep spares organized with clear labeling to streamline future maintenance and BOM audits.
• Verify that your panelboard accepts 3-pole, 600V devices and that the mounting and bus connection geometry match the HJL36020.
• Inspect the surrounding wiring and insulation for wear before installing a replacement to ensure a safe, reliable connection.