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

Mersen Class H & K Fuse Reducers enable the use of lower rated fuses in existing equipment with clips designed for higher ampere ratings. These fuse reducers enhance circuit protection by allowing closer rated time-delay fuses to be installed, such as replacing renewable or one-time fuses feeding a motor with fuses sized closer to the motor nameplate current. Suitable for electrical distributors and switchgear suppliers, these reducers accommodate Class H and K fuses fitting Class H or K clips. Non-rejection types fit Class H, K, or R fuses, while rejection types restrict fitting to Class R or J fuses, with Class J reducers not intended for bolt-on applications.

Specifications

• Manufacturer: Mersen
• Manufacturer Part #: 622
• 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: 3 in (Length) x 2 in (Width) x 0.1875 in (Height)
• Weight: 0.8 lbs
• UPC: 782001752309
• Certifications: UL Listed Guide No. IZZR, CSA Certified

Features

• Allows use of lower rated fuses in clips rated for higher amperage
• Improves circuit protection by enabling closer fuse rating to motor nameplate current
• Non-rejection reducers fit Class H, K, or R fuses into Class H or K clips
• Rejection-type reducers restrict fitting to Class R or Class J fuses only
• Designed for temporary use in electrical and lighting solutions

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