Square D GJL36030M04 - 30 A, 3-Pole Circuit Breaker | AmpState

The Square D GJL36030M04 is a 30A, 3-pole molded case circuit breaker designed to protect your electrical system from overcurrent and short circuits. Built for use in panelboards and loadcenters, this device delivers dependable, coordinated protection for residential, commercial, and light industrial applications.

Why this breaker stands out

• Compact molded case design maximizes panel space, helping you fit protection where it’s needed without crowding other devices.
• Thermal-magnetic trip unit provides stable, repeatable protection by responding to both overloads and short circuits with consistent trip characteristics.
• OEM-compatible designed to work with matching Square D OEM loadcenters and panelboards, ensuring proper fit and reliable coordination within your electrical system.
• Triple-pole protection supports balanced protection for 3-phase circuits, common in modern installations.
• Versatile for multiple environments ideal for panel configurations in homes, small businesses, and light industrial setups requiring robust branch-circuit protection.

Technical specifications

• Manufacturer: Square D
• Part Number: GJL36030M04
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 30A
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

In practical terms, the GJL36030M04 slots into your panelboard lineup to deliver fast, predictable responses to electrical faults. Whether you’re upgrading a subpanel, stocking replacement parts for a commercial panel, or equipping a light industrial installation, this breaker provides reliable protection while helping keep the panel organized and efficient.

Practical considerations

• Confirm compatibility with your specific Square D panelboard model to ensure proper trip coordination and bus-bar engagement.
• Match the 30A rating to the circuit load, and plan ahead for future expansion by leaving space in your panel.
• Regularly inspect panel devices for signs of wear, corrosion, or loose connections to maintain optimal performance.

Available from AmpState, your source for dependable Square D protection devices.