817G174PR7 - 250A, 690V, Switch

Meet the 817G174PR7, a rugged 250A, 690V fusible switch designed to deliver reliable on/off isolation and essential overcurrent protection in challenging industrial and commercial environments. Built to withstand demanding duty cycles, it provides a compact, maintainable solution where space is at a premium and uptime matters.

Key specifications

• Model: 817G174PR7
• Amperage rating: 250 A
• Voltage rating: 690 V
• Function: Fusible switch with on/off isolation and integrated overcurrent protection

Why this switch stands out

• Compact, maintainable design: A space-efficient solution that simplifies servicing, fuse access, and wiring, reducing downtime during routine maintenance or fuse replacement.
• Direct protection for critical circuits: Combines isolation and overcurrent protection in a single unit, helping safeguard motors, panelboards, and branch circuits from faults without extra components.
• Rugged for industrial use: Engineered to perform in harsh environments where reliability and straightforward operation are essential.
• Clear applicability: Specifically suited for motor disconnects, panelboards, and branch circuits where a compact, maintainable fusible switch is required.

Ideal use cases

• Motor disconnects in manufacturing lines, conveyors, or pumps where fast isolation protects personnel and equipment during maintenance.
• Panelboards needing localized protection for distribution branches, enabling safer fault clearance and easier troubleshooting.
• Branch circuit protection in commercial facilities with tight installation footprints, such as data centers, processing plants, or HVAC installations.
• Retrofit projects that replace bulky disconnects with a compact, maintainable solution that preserves space and simplifies maintenance.

Practical considerations and tips

• Match system requirements to the 250 A, 690 V rating to ensure safe operation across load conditions.
• Plan for safe installation practices, including proper lockout/tagout procedures and clear access to the fuse compartment for maintenance.
• Use the switch where quick, decisive isolation is needed without sacrificing fault protection—ideal for systems where downtime is costly and reliability is critical.
• Consider future expandability—the compact footprint leaves room for additional protective devices or future panel updates.

The 817G174PR7 is your reliable, purpose-built solution for combining robust isolation with essential overcurrent protection in a single, streamlined package. If you’re upgrading motor control or reorganizing panel protection, this switch delivers the performance, space efficiency, and maintainability that industrial and commercial environments demand.