Mersen GSB4 - Low Voltage Fuse 4A@250V (40A AIC, UL/CSA Certified)

Mersen GSB4 is a low-voltage fuse designed for circuit protection in industrial applications, featuring a 4A current rating and 250V voltage rating for reliable overcurrent interruption. Its compact 5mm diameter cylindrical design with a single barrel construction weighs just 0.005 lb, meeting UL, CSA, BSI, and SEMKO safety certifications. The fuse delivers 40A interrupting capacity at 250V, complying with international electrical standards for use in control panels, power supplies, and instrumentation circuits requiring precise protection.

Key Features & Specifications

• Type: GSB series low-voltage cartridge fuse
• Voltage Rating: 250V AC/DC
• Current Rating: 4A
• Dimensions: 5mm diameter x 20.1mm (0.79 in) length
• Standards: UL Listed, CSA Certified, BSI, SEMKO
• Applications: Industrial control systems, power distribution
• AIC rating: 40A@250V
• Barrels: 1
• Weight: 0.005 lb
• Certification: UL Listed, CSA Certified, BSI, SEMKO

Product Identification

• UPC: 78200176489
• GTIN: 00782001764890