Bussmann MDL-4-R Time Delay Fuse

Product Overview

The Bussmann MDL-4-R is a premium 4 Amp time-delay fuse designed for reliable circuit protection in demanding electrical systems. Engineered to withstand temporary inrush currents while providing robust overcurrent protection, this fuse prevents nuisance tripping during motor startups, transformer energization, and other high-surge applications. Its compact design ensures easy installation in diverse industrial and commercial settings.

Key Features

• Time-Delay Technology: Allows brief current surges (up to 10x rated current) without opening, ideal for inductive loads.
• 4 Amp Current Rating: Optimized for low-current circuit protection (250V AC/DC).
• Rejection-Style (R) Base: Ensures compatibility with standard rejection holders and prevents accidental mismating.
• High Interrupting Rating: 10kA AC/DC interrupting capacity for enhanced safety against short circuits.
• Durable Construction: Sand-filled ceramic body for arc suppression and stable performance.
• Certified Safety: UL Listed and CSA Certified for compliance with North American standards.

Applications

• Motor control circuits (HVAC, pumps, compressors)
• Transformers and solenoids
• Industrial control panels
• Appliance and machinery protection
• Lighting ballasts and power supplies

Specifications

Installation Note: Replace only with identical Bussmann MDL-R series fuses to maintain system integrity and safety. Always de-energize circuits before servicing.

Trusted by professionals for decades, the MDL-4-R delivers precision protection where reliability matters most. Ideal for OEMs, maintenance teams, and retrofit projects.