Eaton Bussmann SD4-S NH4 Single-Pole Fuse Base, 1250A, 690V, Non-Indicating, Screw-Mount, Thermoplastic Body

The Eaton Bussmann SD4-S NH Fuse Base (Model Code: NH4 SINGLE POLE 1250A) is a heavy-duty, single-pole NH4 base designed for low-voltage protection up to 690 V and 1250 A. Built with a thermoplastic body and screw mounting, it’s a dependable choice for industrial panels and power distribution boards where simple, non-indicating operation is preferred.

Key Features at a Glance

• NH4 single-pole fuse base for low-voltage applications

• 1250 A amperage rating; 690 V rating

• Non-indicating style (no built-in fuse status indicator)

• Thermoplastic body for durability and electrical insulation

• Screw mounting method for secure installation

• Compact footprint with generous height for easy handling

• Global Catalog: SD4-S; Model Code: NH4 SINGLE POLE 1250A

Why Choose This Product
If you need a robust, high-current NH4 base for 690 V systems, the SD4-S hits the sweet spot: straightforward non-indicating design, strong thermoplastic construction, and screw mounting for a tight, reliable fit. It’s built for panels where uptime, simplicity, and consistent performance matter.

Ideal For

• LV power distribution panels and switchboards

• Industrial control panels and MCCs

• Utility and infrastructure cabinets

• Process plants and OEM panel builders

• General purpose protection where NH4 fuse links are used

WhatsApp Quote Call to Action
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