Overview
The Bussmann SA-8 is a tamper-proof fuse adapter designed to retrofit existing Edison base fuse panels with Type S rejection-base plug fuses. These size-rejection SA inserts convert an Edison Base receptacle to accept the Rejection Base S and SL fuses. This lot includes 2 adapters with 4 pieces per box, ideal for electrical contractors, maintenance teams, and system integrators upgrading residential or commercial panels to meet current code requirements.
Key Features
- Tamper-Proof Design: Once installed, the SA adapter cannot easily be removed and limits the amp rating of the fuse that can be installed, preventing accidental over-fusing.
- Type S Rejection Base: Accepts only Type S plug fuses rated at 8 amps, ensuring proper circuit protection.
- Edison Thread Mount: Screws into the Edison thread fuse sockets of standard household fuse boxes.
- NEC Compliance: Ideal for retrofitting Edison Base fuse panels in rental property to prevent over-fusing and bring existing panels up to compliance with the NEC.
- UL Listed: Meets safety standards for residential and light commercial use.
Technical Specifications
- Amperage Rating: 8 amps
- Voltage: 125 VAC nominal
- Fuse Type: Type S (Rejection Base)
- Mounting Style: Edison thread (screw-in)
- Tripping Characteristic: Time-delay (dual element)
- Interrupting Rating: 10 kA
- Quantity per Lot: 2 adapters, 4 pieces per box
- Certifications: UL Listed
Typical Applications
SA adapters are available in a wide variety of sizes to protect motors and branch circuits. Common applications include:
- Residential panel upgrades and modernization
- Rental property fuse panel compliance retrofits
- Branch circuit overload protection
- Single-phase AC system protection in older installations
- Prevention of accidental over-fusing in electrical panels
Compatibility & Replacements
Compatible With
- Standard Edison base fuse sockets (120/240V residential panels)
- Bussmann Type S and SL dual-element plug fuses
- Single-phase AC circuits up to 125 VAC
- UL-listed fuse panel installations
Replaces / Drop-In Replacement For
- Bussmann SA-8 (all manufacturing variants)
- Cooper Bussmann SA-8 adapters
- Generic Type S 8-amp rejection base adapters from other manufacturers
Works With
- Bussmann S-8 tamper-proof plug fuses
- Bussmann SL-8 rejection-base time-delay fuses
- Standard residential circuit breaker panels with Edison sockets
- NEC Article 240 compliant panel upgrades
















