Bussmann SA-10 Edison Base Plug Fuse Adapter

Bussmann SA-10 Edison Base Plug Fuse Adapter

The Bussmann SA-10 is an Eaton Bussmann series plug fuse adapter, also known as a Fustat adapter, designed for industrial/commercial grade electrical service panels equipped with standard Edison base fuse holders. Rated 10A at 125V, the SA-10 threads into an existing Edison base socket and accepts Type S (Fustat) fuses ranging from S-10 to S-7, letting electricians upgrade older Edison base panels to the tamper-resistant Type S fuse platform without replacing the panelboard or fuse holder. Because the adapter is sized for 10A, it physically limits the circuit to a correctly rated Type S fuse, helping maintain proper overcurrent protection. This adapter is commonly specified when a facility needs to standardize on Type S fuse protection across multiple panels while keeping existing Edison base fuse holders in service.

Key Features

• Amperage Rating: Rated 10A, sizing the adapter so only a correctly rated Type S fuse can be installed in the socket.
• Voltage Rating: 125V rating suited to standard branch-circuit fuse panels.
• Edison Base Compatibility: Threads into a standard Edison base fuse holder, allowing retrofit of existing plug fuse sockets.
• Type S Fuse Range: Accepts Type S (Fustat) fuses from S-10 to S-7, supporting the non-interchangeable Type S fuse system.
• Industrial/Commercial Grade: Constructed for industrial and commercial grade electrical distribution equipment.
• Tamper-Resistant Design: Once seated in the Edison base socket, the adapter is intended to remain in place, discouraging removal or bypass with a standard plug fuse.
• Fuse Adapter Function: Serves as a fuse reducer/adapter rather than a fuse itself, bridging Edison base hardware with Type S fuse protection.

Technical Specifications

• Refer to manufacturer documentation for complete technical specifications.

Typical Applications

• Residential and Commercial Fuse Panel Retrofits
• Upgrading Edison Base Fuse Holders to Type S Fuse Protection
• Industrial and Commercial Electrical Distribution Panels
• Panelboard Fuse Holder Modernization
• Circuit Protection Standardization on Legacy Fuse Systems

Why Bussmann?

Bussmann, produced under the Eaton Bussmann series, is a long-standing name in overcurrent protection components for industrial and commercial grade electrical systems. The SA-10 plug fuse adapter carries that same engineering focus, converting an Edison base fuse holder to work with the Type S (Fustat) fuse platform while holding to a defined 10A, 125V rating. For electricians and facility managers standardizing older panels on Type S fuses without a full panel replacement, the Bussmann SA-10 offers a straightforward, code-conscious upgrade path backed by the Eaton Bussmann series name.