Bussmann AD4 Industrial Fuse, 4A, 550VAC/250VDC, Non-Indicating

Bussmann Industrial Fuse, 4A, 550VAC/250VDC, Non-Indicating

The Bussmann Industrial Fuse is a compact overcurrent protection device built for demanding industrial and commercial electrical systems. Rated at 4A with a voltage rating of 550VAC/250VDC, this fuse is designed to open the circuit reliably when current exceeds safe levels, helping protect wiring, control components, and connected equipment from damage. Its non-indicating design keeps the construction straightforward for standard fuse holders and panel applications where a visual blown-fuse signal is not required. Packaged as a standard unit, it is well suited for maintenance stock, panel builds, and equipment manufacturing where consistent, code-compliant circuit protection is essential.

Key Features

• Amperage Rating: 4A rating supports precise overcurrent protection for low-amperage circuits and control loads.
• Voltage Rating: Rated 550VAC/250VDC, allowing use in both AC and DC industrial circuit applications.
• Fuse Indicator: Non-indicating construction for standard installations that do not require a visual blown-fuse signal.
• Packaging Type: Supplied in standard packaging for straightforward stocking, handling, and replacement in the field.
• Overcurrent Protection: Engineered to interrupt excessive current and help safeguard industrial equipment, wiring, and control circuits from damage.
• Industrial-Grade Reliability: Suited to demanding industrial and commercial environments where consistent circuit protection performance is required.

Technical Specifications

• Product Type: Fuse
• Amperage Rating: 4A
• Voltage Rating: 550 Vac/250 Vdc
• Fuse Indicator: Non Indicating
• Packaging Type: Standard

Typical Applications

• Industrial and Commercial Electrical Systems
• Panelboards and Fuse Holders
• Machine and Equipment Overcurrent Protection
• Control Circuit and Low-Amperage Load Protection
• Maintenance, Retrofit, and New Construction Electrical Projects

Why Bussmann?

Bussmann is a recognized name in circuit protection, and this fuse reflects that focus on dependable, code-compliant performance for industrial and commercial electrical systems. With a 4A, 550VAC/250VDC rating and a non-indicating design, it delivers consistent overcurrent protection for panels, equipment, and control circuits alike. Choose Bussmann for trusted, reliable circuit protection components in professional electrical installations.