Square D MJL36800 - 800 A, 600 V, 3-Pole Circuit Breaker | AmpState

Meet the Square D MJL36800, a robust 800A, 600V, 3-pole molded-case circuit breaker designed to protect your electrical distribution with precision. Built for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters, this device provides reliable performance in a wide range of installations.

• Three-pole configuration for balanced three-phase circuits with an 800A carrying capacity, ideal for large feeders and multi-motor loads.
• 600V rating suited for commercial and light industrial distribution, ensuring safe operation across typical panelboard environments.
• Thermal-magnetic trip unit delivers stable, repeatable protection by combining inverse-time overload protection with instantaneous short-circuit response.
• Compact molded-case design maximizes panel space and simplifies installation without compromising protection or reliability.
• OEM compatibility designed to pair with matching Square D loadcenters and panelboards for seamless integration and dependable performance.
• Versatile application suitable for residential, commercial, and light industrial electrical distributions that require robust, high-current protection.

Technical snapshot

• Manufacturer: Square D
• Part Number: MJL36800
• Type: Thermal-magnetic molded case circuit breaker
• Amperage Rating: 800A
• Voltage Rating: 600V
• Number of Poles: 3
• Application: Branch circuit overcurrent and short-circuit protection

This MJL36800 breaker is the smart choice for professionals upgrading or expanding distribution panels where high-current protection is essential. Use it to safeguard large feeders, protect motor circuits, or serve as a reliable main/feeder breaker in panelboards and loadcenters. Its combination of a space-saving design, precise thermal-magnetic protection, and OEM-fit compatibility helps you achieve safer, more predictable electrical performance across installations.

In practical terms, this means fewer nuisance trips during normal startup surges, clearer protection coordination with adjacent devices in the same panel, and straightforward installation with components designed to work together. If you’re planning a panel upgrade or new construction that demands solid, high-current protection, the Square D MJL36800 delivers the reliability and compatibility you need.