The Square D GJL36090 is a high-performance PowerPact molded case circuit breaker engineered for reliable circuit protection in industrial and commercial electrical distribution systems. Featuring a thermal magnetic non-interchangeable trip unit, this breaker provides dependable overload and short-circuit protection to ensure system safety, equipment protection, and operational continuity. Its GJL frame construction paired with a bolt-on mounting configuration offers secure installation, rugged durability, and long-term operational reliability in demanding electrical environments. Designed for systems up to 600V, the GJL36090 delivers exceptional interrupting capacity for advanced fault current protection in critical power applications.

Product Specifications

• Brand: Square D
• Model: GJL36090
• Product Type: Molded Case Circuit Breaker (MCCB)
• Product Series: PowerPact
• Frame Type: GJL / G Frame
• Rated Current: 90 Ampere
• Number of Poles: 3 Pole
• Trip Unit Type: Thermal Magnetic Non-Interchangeable
• Mounting Type: Bolt On
• Operating Temperature Reference: 40°C
• Trip Setting: 800–1400
• 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: 90A
• 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 information is provided during checkout. Installation, maintenance, and servicing should only be performed by qualified electrical personnel in accordance with applicable electrical codes and manufacturer guidelines. 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 operational wear and tear.