York S1-FRNR50 250V Fusetron Buss Fuse 50A

York S1-FRNR50 Fusetron Buss Fuse Overview

The York S1-FRNR50 is a genuine OEM replacement Fusetron Bussmann fuse engineered to provide reliable overcurrent protection in York HVAC systems and equipment. Rated at 50 amps and 250 volts, this Class RK5 dual-element, time-delay fuse is designed to withstand temporary motor inrush currents and startup surges without nuisance tripping — while still providing fast, dependable protection against sustained overloads and short circuits.

Key Features

• Genuine York OEM replacement fuse — SKU S1-FRNR50
• 50A ampere rating for high-capacity circuit protection
• 250V voltage rating suitable for single-phase and multi-phase HVAC applications
• Fusetron (Bussmann) Class RK5 dual-element, time-delay design
• Tolerates motor inrush and startup surges without nuisance tripping
• Provides fast-acting protection against short circuits and sustained overloads
• Direct OEM replacement for compatible York equipment

Specifications

• SKU: S1-FRNR50
• Amperage: 50A
• Voltage: 250V
• Fuse Type: Fusetron Bussmann Class RK5 Time-Delay
• Brand: York

Application

Designed as a direct OEM replacement for York residential and commercial HVAC units, this fuse is ideal for protecting compressor circuits, motor branch circuits, and other high-draw electrical components. The time-delay characteristic makes it especially well-suited for motor-driven loads where high inrush currents are expected at startup.