Eaton FDPW365MR - 400A, 600V, 3-Phase, Switch

The Eaton FDPW365MR is a rugged 3-phase fusible switch engineered for reliable on/off isolation and robust overcurrent protection in demanding industrial and commercial environments. With a 400A rating at 600V, this switch is built to handle demanding motor disconnects and critical distribution points with confidence, while keeping installation streamlined and maintenance straightforward.

Why the FDPW365MR stands out

• High-current, 3-phase reliability: 400A capacity across a 600V three-phase system makes it ideal for motor disconnects and shared power paths in factories, warehouses, and large commercial facilities.
• Integrated protection with practical design: A compact fusible switch that provides dependable isolation alongside overcurrent protection, reducing the need for separate protective devices in the most space-constrained panels.
• Maintenance-friendly by design: Built for straightforward servicing in active electrical rooms, with clear access to switching and fuse elements to minimize downtime during inspections or replacements.
• Versatile application in distribution networks: Suited for panelboards and branch circuits where a reliable, easy-to-service disconnect is essential to protect equipment and personnel during maintenance or fault conditions.

Ideal use cases

• Motor disconnects in manufacturing lines, processing equipment, and large pumps or fans.
• Main or feeder protection in panelboards feeding critical loads in industrial facilities.
• Branch circuit protection for heavy machinery and other high-current loads requiring dependable isolation.

Key features and practical benefits

• Model: FDPW365MR
• Current rating: 400A
• Voltage rating: 600V
• Phase: 3-Phase
• Type: Fusible switch with on/off isolation and overcurrent protection
• Construction for harsh environments: Designed to perform reliably in industrial and commercial spaces where space and maintenance efficiency matter

How it fits into your system

For motor-driven equipment, the FDPW365MR provides a safe, clearly identifiable disconnect point that simplifies lockout/tagout procedures and routine servicing. In panelboard applications, it serves as a compact, integrated protection module that helps maintain orderly wiring and reduces panel depth without compromising safety. For branch circuits, it delivers immediate protection against faults while enabling quick isolation during troubleshooting or routine maintenance.

Installation and maintenance guidance

• Follow all applicable electrical codes and safety protocols when installing or servicing the switch.
• Ensure the power is de-energized and the area is secured before performing any maintenance.
• Inspect connections for tightness during routine servicing to preserve reliable electrical contact and minimize resistance heating.
• Use only matching components and ratings when replacing fuses or related protective devices to preserve intended protection levels.
• Schedule periodic inspections of the switch assembly in harsh environments to catch wear or corrosion early and prevent unexpected downtime.

Specifications at a glance

Model: FDPW365MR
Amperage: 400A
Voltage: 600V
Phase: 3-Phase
Application: Suitable for motor disconnects, panelboards, and branch circuit protection in compact, maintainable switch form.