Square D ME836LSIG 800A 3-Pole 600 V Circuit Breaker

Designed for demanding industrial environments, the Square D ME836LSIG 800A 3-Pole 600 V Circuit Breaker delivers robust, coordinated protection for high-current, three-phase systems. This authentic Square D device is built to quickly interrupt fault currents and isolate faulty circuits, helping minimize downtime and protect critical equipment.

• Part number: ME836LSIG
• Current rating: 800 A
• Pole configuration: 3-pole (three-phase, common-trip)
• Voltage rating: 600 V

Why this matters for you:

• High-current capacity handles large feeders and motors, reducing the risk of nuisance trips while protecting upstream equipment.
• Three-pole design ensures synchronized interruption across all phases, preserving system safety and electrical balance during faults.
• Authentic Square D reliability designed for use in compatible Square D panels and enclosures, supporting long-term, maintainable protection for your distribution system.

Ideal use cases and scenarios:

• Feeder protection for manufacturing lines and heavy machinery that require solid, dependable three-phase interruption at 600 V.
• Main distribution protection in sizable electrical panels where 800 A capacity safeguards multiple downstream circuits.
• Replacement or upgrade in established Square D installations that call for a genuine ME series device with three poles.

Practical considerations to maximize performance:

• Verify compatibility with your Square D panel and enclosure to ensure a seamless fit and reliable operation.
• Schedule professional installation to confirm proper mounting, electrical connections, and coordinated trip functionality across all poles.
• Keep documentation on hand for maintenance records and future part replacements, ensuring continued protection continuity in your electrical system.