Schneider Electric | EZD400M3350K | Circuit Breaker | 350A | 3-Pole | 690V

Meet Schneider Electric EZD400M3350K, a rugged three-pole circuit breaker rated for 350 amps and capable of handling systems up to 690 volts. Built for maintenance, retrofit, and replacement projects where exact specifications matter, this unit ensures seamless compatibility with existing Schneider Electric installations and spare parts ecosystems.

Key specifications

• Amperage: 350 A
• Poles: 3-Pole
• Voltage: 690 V

Why this model matters

Choosing the EZD400M3350K means you’re matching a precise set of requirements. The 3-pole configuration supports balanced, three-phase power distribution, while the 690 V rating covers industrial networks and certain high-voltage applications. The 350 A current rating delivers reliable protection for equipment and wiring in moderate-to-heavy load scenarios. The part number EZD400M3350K is the best reference for compatibility, helping you avoid mismatches in panel boards, busways, or starter assemblies.

Ideal use cases

• Maintenance and retrofit projects on three-phase networks that require a 350 A protection level.
• Replacement of aging breakers in industrial control panels where 690 V operation is standard.
• New installations that demand a Schneider Electric-compatible, high-capacity protective device with exact specifications.

Installation and compatibility tips

• Before ordering, confirm fit and ratings using the EZD400M3350K part number as your compatibility reference.
• Verify that your panel or switchgear supports a 690 V, 350 A, 3-Pole device; ensure wiring conductors and termination hardware are rated for the same.
• Coordinate with existing protective devices and coordination curves to ensure proper upstream/downstream protection and selectivity.

What you gain with Schneider Electric quality

Rigorously tested for reliability and designed to integrate smoothly with Schneider Electric systems, this breaker lineup helps reduce downtime and simplifies spares management by keeping a single, consistent family of protective devices in your electrical distribution network.