Mersen TR2-8/10R Fuse Reducer 2-8/10A 250V RK5

Product Description

The MERSEN TR2-8/10R is a fuse reducer designed to allow a smaller-amperage RK5 fuse to be installed in a larger fuse holder or fuse block. Rated at 2-8/10 amps and 250 volts, this reducer accepts a Class RK5 time-delay fuse and adapts it to fit a standard Class H or Class K fuse holder. Fuse reducers like this one are a common solution in industrial and commercial electrical panels where an existing holder must be repurposed for a lower-amperage branch circuit without replacing the holder itself. Installation is handled by licensed electricians and qualified electrical technicians.

This reducer is suited for use in commercial and light industrial electrical distribution applications where Class RK5 time-delay fuse protection is required at 2-8/10 amps. Typical installations include motor branch circuits, HVAC control circuits, and panel branch circuits where fuse holder sizing does not match the required fuse amperage. Its 250-volt rating covers standard single-phase branch circuit applications.

Key Features

• Allows a 2-8/10A Class RK5 fuse to seat in a larger Class H or Class K fuse holder
• Rated for 250 volts AC
• Time-delay (TD) fuse type compatibility supports motor and inductive load circuits
• RK5 class provides rejection-style fuse protection against oversizing
• Compact reducer form factor requires no holder replacement

Compatibility

Designed as an OEM-style replacement reducer for use with Class RK5 time-delay fuses in standard Class H or Class K fuse holders rated for 250 volts.

Installation Notes

Installation should be performed by a licensed electrician in accordance with NEC requirements. Always de-energize and lock out the panel or disconnect before handling fuses or fuse holders. Confirm that the holder ampere rating, voltage rating, and fuse class are compatible before inserting the reducer. Do not use this reducer to bypass or override the intended fuse class of a panel.

Technical Specifications

• Amperage Rating: 2-8/10 amps
• Voltage Rating: 250 volts
• Fuse Class: RK5
• Fuse Type: Time-Delay (TD)
• UPC: 78200174767

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: TR2-8/10R