Why Choose the Mersen C301233 SI TT 70/71 High-Voltage Fuse Holder?
£77.07
The Mersen C301233 is a Protistor® Size 33 high-speed semiconductor fuse engineered to provide exceptional protection for modern power electronic equipment. Designed specifically for semiconductor applications, it delivers ultra-fast fault interruption to protect sensitive components including IGBTs, thyristors, SCRs and rectifier diodes from damaging short-circuit currents. The Protistor® Size 33 range is designed for maximum flexibility in equipment design while providing outstanding semiconductor protection.
Constructed using precision die-cut fuse elements embedded in solidified sand with silver-plated contact surfaces and non-magnetic hardware, the fuse offers excellent current-limiting performance, low let-through energy and high interrupting capacity. These features help minimise thermal stress on expensive semiconductor devices whilst improving equipment reliability.
The Mersen C301233 is suitable for OEM equipment, maintenance and replacement applications where the electrical ratings, mounting style and physical dimensions correspond with the original fuse. Always verify the current rating, voltage rating and mounting configuration against the equipment documentation or official Mersen datasheet before installation.
The Protistor® Size 33 family has been developed specifically for protecting modern power semiconductor devices operating in demanding industrial environments. Its ultra-fast current-limiting characteristics reduce fault energy before sensitive electronic components can be damaged, helping improve equipment reliability while reducing maintenance costs and downtime.
Typical applications include industrial drives, UPS systems, renewable energy converters, power supplies, motor control centres and high-power conversion equipment requiring dependable semiconductor protection.
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| Phase | Single Phase | |
|---|---|---|
| Poles | 1-pole | |
| Model / Part Number | C301233 (SI TT 70/71 fuse holder) | |
| Pole Configuration | Single‑pole (1P) | |
| Voltage Rating | 2,500 VAC | |
| Mounting Style | DIN rail or panel mount | |
| Fuse Series Compatibility | SI TT‑70 and SI TT‑71 series | |
| Weight | ~0.691 kg per unit | |
| Construction | High-durability thermoplastic with screw-type terminals | |
| Compliance | IEC 60269, RoHS compliant |
The Mersen C301233 is designed to provide ultra-fast protection for semiconductor devices used in industrial power electronic equipment.
It is intended for protecting IGBTs, thyristors, SCRs, rectifier diodes and similar semiconductor power devices.
Semiconductor fuses operate significantly faster than conventional industrial fuses, reducing fault energy before expensive electronic components can be damaged.
Typical installations include industrial drives, inverters, converters, UPS systems, renewable energy equipment and other high-power semiconductor applications.
Yes. Always ensure the replacement fuse matches the original current rating, voltage rating, operating characteristic, body size and mounting arrangement specified by the equipment manufacturer.
Mersen Protistor® semiconductor fuses are trusted worldwide by OEMs, panel builders and industrial maintenance engineers for protecting valuable power electronic equipment in demanding industrial environments.
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