Overview
The Cooper SA-8 fuse adapter is a tamper-proof socket adapter designed to retrofit standard Edison-thread fuse holders in residential and light commercial applications. This adapter allows safe installation of 8A tamper-proof (Fustat) fuses and prevents accidental installation of fuses with higher amp ratings, reducing the risk of circuit overload and fire hazards.
Key Features
- Screws into standard Edison-base fuse sockets with no modification required
- Restricts fuse amp rating to 8A, preventing over-fusing
- Tamper-proof design ensures safety and code compliance
- Includes 4 adapters per box for multiple circuits
- Made by Cooper Bussmann, a trusted manufacturer of electrical circuit protection
Technical Specifications
Specifications for the Cooper SA-8:
- Model: SA-8
- Fuse Type: Tamper-Proof (Fustat)
- Maximum Amp Rating: 8A
- Socket Type: Edison-Base Thread
- Quantity: 4 per box
- Manufacturer: Cooper Bussmann
Typical Applications
- Residential fuse box upgrades and retrofits
- Light commercial control panels requiring tamper-proof protection
- Industrial equipment with legacy Edison-base fuse sockets
- Circuit protection in older electrical systems undergoing modernization
- Compliance with electrical codes requiring size-rejection fuse systems
Compatibility & Replacements
Compatible With
- Standard Edison-base fuse sockets in residential and light commercial panels
- Legacy fuse box installations
- Electrical panels requiring tamper-proof, size-rejection protection
Replaces / Drop-In Replacement For
- Older non-tamper-proof fuse adapters for 8A circuits
- Manual over-fusing prevention methods
Works With
- Cooper Bussmann S-series 8A tamper-proof fuses
- All standard 8A Fustat-compatible fuses








