Eaton Fuse, Radial 4A, 250V ac

This fuse provides overcurrent protection for electronic and electrical installations where delayed response to transient surges is required. Designed for through-hole mounting with radial leads, it operates on mains circuits up to 250V AC and is suitable for environments that demand temperature resilience and recognised industry approvals.

• 4A rating protects circuits while allowing short transients • Time-delay characteristic prevents nuisance openings from inrush currents • 40A breaking capacity limits fault energy during severe short circuits • Radial 1mm leads facilitate secure PCB or wiring connections • Operating range from -40°C to +125°C maintains function across extremes • VDE and IEC approvals ensure adherence to standardised test criteria

• Suitable for control panels in factory automation systems • Ideal for power supplies in industrial electronics equipment • Used with motor drives requiring inrush-tolerant protection • Can be used for domestic appliance safety circuits in manufacturing • Used for prototype boards needing compact, reliable fuse protection

The slow-blow characteristic allows brief current spikes to pass without blowing while sustained fault currents are interrupted, reducing unnecessary downtime for devices with high start-up draw.

The 1mm lead diameter and 4.3mm length suit standard through‑hole holes or soldered wire loops, enabling robust mechanical retention and straightforward replacement.

The component is specified to operate continuously up to +125°C and down to -40°C, so derating should be assessed according to system thermal profiles to maintain safe operating margins.

The device conforms to IEC 60127-3 for miniature fuse construction and test procedures, providing a basis for design integration in Compact applications.

Eaton formerly known as Bussmann