Fuse Bases 250V 100A Class R Adder Tin-Plate AL Box with Reinforced Clip – Electrical Fuse Base

The Mersen Fuse Bases 250V 100A Class R Adder Tin-Plate AL Box with Reinforced Clip is designed for electrical distributors and switchgear suppliers requiring reliable fuse block solutions. It accommodates Class R 250V power fuses and is suitable for use in lighting solutions, wire and cable systems, and general electrical distribution. The fuse base features a box connector with spring-reinforced clips optimized for stranded or solid copper or aluminum wire, ensuring secure and durable electrical connections. Its molded glass-filled polycarbonate insulator provides superior dielectric strength exceeding 2500V, supporting safe and efficient operation in industrial and commercial applications.

Specifications

• Manufacturer: Mersen
• Manufacturer Part #: 21035R
• Class: Class R
• Voltage Rating: 250 V
• Amperage Rating: 100 A
• Number of Poles: 1
• Material: Glass Filled Polycarbonate
• Connection Type: Box with Reinforced Clip
• Mounting: Direct Screw Mount
• Frequency: 50 Hz
• Dimensions (L x W x H): 8.33 in x 1.52 in x 2.28 in
• Max. Operating Temperature: 80 °C
• Product Weight: 0.7 lb
• Country of Origin: Mexico

Features

• Compatible with Class R 250V power fuses including A2D-R, A2K-R, TR-R fuse types
• Spring-reinforced tin-plated copper clips for high conductivity and secure fuse retention
• Glass-filled polycarbonate insulator with dielectric strength over 2500V for enhanced safety
• Unique adder block design allowing modular assembly for multi-pole configurations
• Suitable for copper or aluminum wire with box connector ensuring reliable electrical contact
• Direct screw mounting for straightforward installation
• UL listed and CSA certified for compliance with North American safety standards

Downloads & Links

• Spec Sheet
• Spec Sheet (French)