Class H & K Fuse Reducer - Fuse Reducer for Electrical Circuit Protection

Mersen Class H & K Fuse Reducers enable the use of lower rated fuses in existing equipment with clips rated for higher amperes. These reducers improve circuit protection by allowing the use of closer rated time-delay fuses, such as replacing renewable or one-time fuses feeding motors with fuses sized closer to motor nameplate currents. Non-rejection reducers accommodate Class H, K, or R fuses fitting Class H or K clips, while rejection-type reducers restrict fitting to Class R or Class J fuses in their respective clips. This product is designed for temporary use and is not suitable for bolt-on applications. Ideal for electrical distributors and switchgear suppliers seeking reliable fuse and circuit protection solutions.

Specifications

• Manufacturer: Mersen
• Manufacturer Part #: 266
• Class: H & K
• Voltage Ratings: 250V and 600V for Class H, K, and R fuses
• Amperage Range: 30 to 600 Amps
• Tested Interrupting Rating: 200,000 Amps
• Dimensions: 2.65 in (Length) x 1.13 in (Width) x 1.13 in (Height)
• Product Weight: 0.67 lbs
• UPC: 782001752354
• Certifications: UL Listed Guide No. IZZR, CSA Certified

Features

• Allows use of lower rated fuses in equipment with higher ampere clips
• Improves circuit protection by enabling closer fuse rating to motor current
• Non-rejection type fits Class H, K, or R fuses to Class H or K clips
• Rejection type restricts fitting to Class R or Class J fuses in matching clips
• Designed for temporary use only, not for bolt-on applications

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