Square D | MJP36350 | Circuit Breaker | 350A | 3-Pole | 600V | Bolt-On

Introducing the Square D MJP36350 circuit breaker — a rugged, field-ready protection device engineered for demanding 3‑phase installations. This 350A, 3‑pole breaker is built to reliably protect large feeders and distribution circuits in industrial and commercial environments, with a 600V rating that suits a wide range of equipment and networks.

• Amperage: 350 A
• Poles: 3‑Pole (three‑phase)
• Voltage Rating: 600 V
• Mounting: Bolt‑On
• Part Reference: MJP36350 — use this part number as the best reference for compatibility

Why choose this Square D breaker? It’s designed for maintenance, retrofit, and replacement projects where exact specifications matter. If your system calls for a 350A, 3‑pole device in a 600V class, this bolt‑on model delivers a dependable, straightforward upgrade path that fits many existing panels with matching ratings.

Ideal use cases include upgrading large feeder circuits, refreshing aging protection in industrial equipment arrays, or replacing a failed device with identical specs to minimize downtime. Before ordering, confirm fit and ratings to ensure seamless compatibility with your panelboard or distribution setup — the MJP36350 designation is your best reference for that alignment.

Practical tips for installation and planning:

• Match the breaker’s amperage, voltage, and pole configuration to your existing panel requirements to maintain proper overload protection.
• Consult your electrical drawings and the panel’s documentation to verify bolt‑on mounting compatibility and torque guidance from the manufacturer.
• Handle with the system de‑energized and follow all safety and NEC guidelines during replacement or retrofit work.