The Square D GJL36020 is a high-performance PowerPact molded case circuit breaker designed to provide dependable protection for industrial and commercial electrical distribution systems. Equipped with a thermal magnetic non-interchangeable trip unit, this breaker offers reliable overload and short-circuit protection to ensure safe and efficient system operation. Its GJL frame construction combined with a bolt-on mounting configuration delivers secure installation, durability, and long-term operational reliability. Rated for applications up to 600V, the GJL36020 is engineered to handle high fault current conditions while maintaining superior protection performance in demanding environments.

Product Specifications

• Brand: Square D
• Model: GJL36020
• Product Type: Molded Case Circuit Breaker (MCCB)
• Product Series: PowerPact
• Frame Type: GJL / G Frame
• Rated Current: 20 Ampere
• Number of Poles: 3 Pole
• Trip Unit Type: Thermal Magnetic Non-Interchangeable
• Mounting Type: Bolt On
• Operating Temperature Reference: 40°C
• Trip Setting: 600–1200
• Terminal Type: Line and Load End Standard
• Application: Commercial and Industrial Power Distribution

Technical Specifications

• Interrupting Capacity: 100kA @ 240VAC
• Interrupting Capacity: 65kA @ 480VAC
• Interrupting Capacity: 18kA @ 600Y/347VAC
• Maximum Voltage Rating: 600VAC
• Protection Type: Overload and Short Circuit Protection
• Connection Type: Bolt-On Connection
• Frame Construction: Molded Case Design
• Standard Compliance: Industrial Circuit Protection Standards

Voltage and Ratings

• Rated Operational Voltage: 240VAC / 480VAC / 600Y/347VAC
• Maximum Voltage Capacity: 600VAC
• Current Rating: 20A
• Pole Configuration: 3 Pole
• Interrupting Rating at 240VAC: 100 Kiloampere
• Interrupting Rating at 480VAC: 65 Kiloampere
• Interrupting Rating at 600Y/347VAC: 18 Kiloampere

Product Data

• Manufacturer: Square D
• Product Series: PowerPact GJL Frame
• Product Condition Support: New Surplus & Certified Reconditioned
• Warranty: 1 Year In-House Warranty
• Installation Type: Bolt-On Mounting
• Terminal Configuration: Line and Load End Standard
• Product Use: Electrical Distribution and Circuit Protection Systems

Important Note

Product images are intended for identification purposes only and may represent a standard base model configuration. Accessories purchased together with the breaker can be professionally installed at no additional cost when detailed configuration requirements are provided during checkout. Installation, maintenance, and servicing should only be carried out by qualified electrical personnel in accordance with applicable electrical codes and manufacturer recommendations. The included one-year warranty covers repairs, labor, replacement parts, and standard shipping associated with recertification, excluding damage caused by misuse, improper installation, or normal wear and tear.

Returns are easy

You may return items within 30 days of delivery for a refund.

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My Circuit Breakers provides a comprehensive 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer). Extended warranties are available upon request.