Bussmann S506-500-R Time Delay Fuse

Product Description: Bussmann S506-500-R Time Delay Fuse

Overview

The Bussmann S506-500-R is a robust 500-amp time-delay fuse designed for reliable overcurrent protection in demanding electrical systems. Engineered for compatibility with Class R rejection fuse blocks, it safeguards circuits against short circuits and sustained overloads while tolerating harmless temporary inrush currents. Ideal for industrial, commercial, and HVAC applications, this fuse minimizes nuisance tripping and enhances system uptime.

Key Features

• Time-Delay Design: Withstands momentary surges (e.g., motor startups) without blowing, while responding decisively to prolonged overloads.
• High Interrupting Rating: 200kA IR ensures superior protection against high-fault currents.
• Class R Compliance: Fits only Class R fuse holders (R1/R2), preventing accidental installation of lower-rated fuses for enhanced safety.
• Voltage Rating: 600V AC for versatile use in industrial power distribution panels, HVAC systems, and machinery.
• Durable Construction: Sand-filled ceramic body for efficient arc quenching and stable performance.
• Rejection Feature: Pin-based design ensures one-way compatibility with UL-listed Class R fuse clips.

Applications

• Motor control centers (MCCs)
• HVAC compressors and fans
• Industrial machinery and transformers
• Power distribution panels
• Pump and conveyor systems

Specifications

• Amperage: 500A
• Voltage: 600V AC
• Type: Time-delay (dual-element)
• Interrupt Rating: 200,000A
• Standards: UL Listed, CSA Certified
• Dimensions: Standard Class R (refer to datasheet for exact sizing)

Benefits

✅ Safety: Prevents electrical fires by isolating faults rapidly.
✅ Equipment Protection: Minimizes damage to motors and transformers.
✅ Code Compliance: Meets NEC requirements for Class R rejection fuses.

Note: Always verify compatibility with existing fuse holders and consult local codes before installation. Replace in pairs if used in AC voltage applications.

Part of Eaton’s Bussmann Series — Trusted by professionals for over 100 years.