Eaton | MDLB3350 | Circuit Breaker | 350A | 3-Pole | 600V

Eaton MDLB3350 is a rugged, three-pole circuit breaker engineered for industrial power distribution. With a 350A rating and 600V operating capability, this unit is designed for maintenance, retrofit, and replacement projects where exact specifications matter.

Why this matters

When you're upgrading or restoring a panel, using the correct OEM part minimizes downtime and preserves protective coordination. The MDLB3350 is built to match Eaton's trip characteristics and physical footprint, helping you avoid mismatches that can complicate installation or void warranties.

Key specifications

• Amperage: 350 A
• Poles: 3-Pole
• Voltage: 600 V

Best use cases

• Maintenance and repairs in industrial or commercial electrical panels that require a 3-phase, 350A protection device.
• Retrofit projects where existing equipment calls for a 3-pole, 600V breaker with Eaton compatibility.
• Replacement for failed MDLB3350 units to restore protective coverage without changing panel configuration.

Fit and compatibility tips

Before ordering, confirm fit and ratings to ensure seamless installation. The MDLB3350 part number is the most reliable reference for compatibility with your panel and bus configuration. If your system expects a 3-pole, 600V protection device with Eaton's 3-phase trip characteristics, this is the right choice.

What makes it stand out

OEM-grade reliability from Eaton means consistent trip performance, predictable protection for vital equipment, and easier spare part management for maintenance teams. This breaker is designed to slot into standard Eaton 3P panels that support MDLB-series devices, helping you keep electrical infrastructure running smoothly.

Practical notes

• Keep spares for downtime-critical equipment so maintenance can proceed without delays.
• Verify bus configuration and mounting style in the panel to ensure correct wiring and secure mounting.