Square D MH36800 - 800 A, 3-Pole Plug-In Circuit Breaker | AmpState

Meet the Square D MH36800 from AmpState — a robust 800 A, 3-pole plug-in molded case circuit breaker engineered for dependable branch circuit overcurrent and short-circuit protection in panelboards and loadcenters. Designed for fast installation and straightforward replacement, this breaker keeps critical electrical distribution running with minimal downtime.

• Fast plug-in connection enables quick installation and easy replacement, reducing service interruptions during upgrades or fault recovery.
• Thermal-magnetic trip unit delivers stable, repeatable protection across a wide range of loads and ambient temperatures, helping prevent nuisance trips while still safeguarding equipment.
• 3-pole design optimized for three-phase systems, ideal for larger panelboards and commercial/light industrial feeders.
• 800 A rating provides high-capacity protection for main feeders and substantial branch circuits without compromising protection quality.
• OEM-compatible works with matching Square D load centers and panelboards for seamless integration and consistent performance.
• Versatile application suited for residential, commercial, and light industrial environments where reliable, immediate overcurrent protection is essential.

Why this breaker matters in real-world wiring

For electrical systems handling substantial loads, you need a protection device that acts quickly when faults occur and stays stable under heavy use. The MH36800’s plug-in design minimizes downtime during maintenance or panel upgrades, while the thermal-magnetic trip mechanism provides precise coordination with downstream protection devices. This combination helps protect conductors, busbars, and connected equipment from short circuits and overloads, reducing the risk of damage and downtime.

Compatibility, installation, and reliability

Designed to pair with compatible OEM panelboards and loadcenters, the MH36800 ensures consistent trip characteristics and electrical performance with your existing Square D infrastructure. Its plug-in mounting style simplifies field replacements and panel upgrades, making it an efficient choice for service upgrades, new installations, or modernization projects where a high-current, three-pole solution is required.

Technical specifications at a glance

• Manufacturer: Square D
• Part number: MH36800
• Type: Thermal-magnetic molded case circuit breaker
• Amperage rating: 800 A
• Number of poles: 3
• Mounting style: Plug-in
• Application: Branch circuit overcurrent and short-circuit protection

Ideal use scenarios

- Upgrading or replacing main feeders in residential, commercial, or light industrial panelboards and load centers that require a high-current, three-pole protection device.

- Projects where quick installation and minimal downtime are critical, such as retrofit work in active electrical rooms or service panels.

- Environments with variable operating conditions where a reliable thermal-magnetic trip maintains protective coordination and reduces nuisance cycling.

Choose the Square D MH36800 800 A, 3-Pole Plug-In Molded Case Circuit Breaker for a dependable, high-capacity protection solution that aligns with your existing Square D infrastructure. Built for performance, designed for durability, and supported by AmpState’s authentic parts stock, it’s a thoughtful upgrade for demanding electrical systems.