The Bussmann 45 A Time Delay Fuse is engineered to protect electrical systems that endure short, high-inrush bursts without sacrificing the circuit during startup. With a 45-amp rating and 250-volt operating capability, this fuse stays in the circuit long enough to tolerate legitimate surges, preventing nuisance trips while safeguarding wiring and components.
Key features and construction
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Amperage: 45 A
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Time-delay design: Slow-blow action to accommodate inrush currents
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Voltage rating: 250 V
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UL listed: Yes, providing recognized safety assurance
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CSA listed: No
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Endcap construction: Ferrule for secure mounting
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Tube construction: Fiberglass for durability and heat resistance
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Diameter: 3
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Packaging: Boxed, 1 piece per package
Ideal applications
Choose this time-delay fuse for circuits where motors, compressors, and other equipment generate brief startup surges. It’s well-suited for HVAC controls, appliance power circuits, welding equipment, and other applications where protecting conductors and downstream devices is essential without interrupting normal operation during transient spikes.
Why this fuse stands out
Unlike fast-acting fuses, the 45 A time-delay variant provides a balance between protection and continuity. The fiberglass tube enhances robustness in demanding environments, while ferrule endcaps offer reliable, repeatable connections in panel and junction setups. UL listing reinforces confidence in compliance and safety, making it a dependable choice for professional installations.
Practical guidance for use
- Match the fuse to circuits with intermittent inrush currents rather than continuous overloads.
- Ensure the system voltage does not exceed 250 V for safe operation.
- In panel layouts, pair with compatible holders and mounting hardware designed for ferrule-endpoint fuses.
- Store in the boxed packaging to protect the fuse from mechanical damage before installation.
With the Bussmann 45 A Time Delay Fuse, you gain reliable, application-focused protection that respects startup surges and safeguards your wiring and components—delivering peace of mind for both installers and equipment operators.
