Overview
The Gould Shawmut R636 fuse reducer is a precision electrical accessory designed to allow lower-rated Class R fuses to fit standard equipment clips with higher ampere ratings. This rejection-type reducer enables a 30-amp fuse to fit 60-amp clips at 600 volts, providing critical protection and flexibility in industrial electrical systems.
Key Features
- Rejection-type design ensures only Class R fuses can be installed
- Allows 30A fuse to fit 60A clips without modification to equipment
- Rated for 600V AC and DC applications
- UL and CSA approved for electrical safety compliance
- Supports improved circuit protection through closer fuse matching to load current
- Compact, durable construction for reliable long-term performance
Technical Specifications
Electrical Characteristics:
- Reducer Type: Class R Rejection
- Voltage Rating: 600V AC/DC
- Fuse Current Rating: 30 Amperes
- Clip Current Rating: 60 Amperes
- Short Circuit Current Rating: 200 Kiloamperes
- Fuse Class: Class R only
Typical Applications
The R636 fuse reducer is ideal for industrial facilities, commercial electrical systems, and motor control circuits where equipment has 60-amp fuse clips but loads require 30-amp protection. Common applications include:
- Motor circuits requiring closer fuse sizing to nameplate current
- Industrial control panels and distribution systems
- Equipment retrofits without replacing fuse blocks or clips
- Renewable and one-time fuse applications needing downsized protection
Compatibility & Replacements
Compatible With
- Standard 60-amp fuse clips (R-type mounting)
- Class R fuses rated 30 amperes and below
- 600V AC and DC electrical systems
- Industrial control equipment with rejection-type fuse holders
Replaces / Drop-In Replacement For
- Ferraz Shawmut R636
- Mersen R636 (current manufacturer designation)
- OEM equivalent fuse reducers in legacy Gould Shawmut installations
Works With
- Ferraz Shawmut / Mersen electrical systems
- Class R rejection fuse systems
- Industrial motor control and circuit protection applications
- UL and CSA listed electrical equipment
