Bussmann Super Lag RES50 50A (lot of 3)

Overview

The Bussmann RES-50 is a time-lag (slow-blow) renewable fuse rated 50A at 600V, Class H format. These Super Lag fuses are non-current-limiting devices designed for industrial and commercial electrical systems where temporary inrush currents occur. This lot includes three units, each with ferrule-end connections and 10 kAIC interrupting rating at 250 Vac.

Key Features

• Time-delay (slow-blow) characteristic—tolerates temporary surges
• Renewable design—element can be replaced without changing the fuse cartridge
• Class H form factor with ferrule-end terminals
• 600V rated, 50A continuous current
• Non-current-limiting protection for motor and transformer circuits
• UL listed per Standard 248-6

Technical Specifications

Typical Applications

• Motor branch circuits and motor-starting circuits
• Feeder and main distribution protection
• Transformer and inductive load protection
• Industrial control panel circuits
• Commercial power distribution systems

Compatibility & Replacements

Compatible With

• 600V industrial fused disconnect switches
• Standard Class H fuse holders and clip blocks
• Motor control centers (MCC) using Class H fuses
• Power distribution and sub-panel enclosures rated 600V
• Industrial electrical systems per NEC Article 240

Replaces / Drop-In Replacement For

• Other Bussmann RES-50 50A time-lag fuses
• Equivalent 50A Class H time-delay fuses from Littelfuse, Mersen, or other Class H-rated manufacturers
• Verify ratings and mounting before substitution

Works With

• Class H ferrule-end fuse holders (standard 600V rating)
• Industrial control systems requiring time-delayed protection
• Equipment and circuits subject to temporary inrush or surge currents
• Standard U.S. industrial electrical standards (NEC, UL 248-6)