The Cooper Bussmann NO.216-R Fuse Reducer is an essential accessory designed to facilitate the use of smaller Class R fuses within larger fuse blocks or holders.
Key Features
- Versatile Compatibility: Accommodates 35-60A fuses rated at 250V and 1-30A fuses rated at 600V, enabling their installation in 100A fuse blocks.
- Broad Application: Compatible with FRN-R, LPN-RK, FRS-R, LPS-RK, KTN-R, and KTS-R series Class R fuses.
- Robust Construction: Ensures strong mechanical and electrical contact, maintaining system integrity.
- Universal Fit: Designed to fit most panels and switches, including dead-front types.
- Safety Compliance: UL Listed and CSA Certified, meeting stringent safety standards.
Specifications
- Voltage Rating: 250V/600V
- Amperage Rating: 100A
- Class: R
- Dimensions: 2.5″ (L) x 1.8″ (W) x 1.4″ (H)
- Weight: 0.2 lb
Applications
Ideal for electrical assemblies, panels, and OEM applications where adapting fuse sizes is necessary without compromising safety or performance.
Important Considerations
- Reducers are designed for use within the same voltage class and do not facilitate transitions between different voltage ratings.
- Not intended for switching between different fuse classes.
The NO.216-R Fuse Reducer offers a reliable solution for integrating smaller fuses into larger systems, ensuring flexibility and safety in electrical configurations.





















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