Square D EJB36050 50A 3-Pole 600 V Circuit Breaker

The Square D EJB36050 50A 3-Pole 600 V Circuit Breaker is a purpose-built protection device for three-phase electrical systems, delivering reliable overcurrent protection up to a 50-amp rating and a 600-volt maximum. Identified by part number EJB36050, this model is designed for accurate replacements and dependable performance in demanding distribution setups.

• Current rating: 50 A
• Poles: 3 (three-pole design for simultaneous disconnection of all phases)
• Voltage rating: 600 V
• Part identification: Exact model—EJB36050—for precise ordering and compatibility

Why this matters to you

• Three-pole protection ensures coordinated disconnection across all phase conductors, enhancing safety and minimizing arcing faults in three-phase equipment.
• Designed to safeguard circuits that run motors, compressors, pumps, and other heavy-load equipment commonly found in commercial and light-industrial environments.
• High-voltage capability up to 600 V makes it suitable for a range of distribution panels and installations where three-phase power is required.

Ideal use cases

• Motor feeders in manufacturing lines, conveying systems, and HVAC installations
• Three-phase distribution trunks in commercial facilities
• Protection for critical equipment where rapid, consistent trip protection is essential

Practical guidance

• Ensure the system voltage and phase configuration align with the 600 V, 3-pole specification before installation.
• Verify compatibility with your existing Square D panels or enclosures and follow local electrical codes during replacement or installation.
• Consult the product documentation for installation torque, mounting, and trip characteristics to maximize reliability and safety.