Why Choose the Wöhner 31908 D01 Locking Cap?
The Wöhner 31908 is a D01 locking cap (utility version) designed for D01 / E14 screw fuse systems. It provides a secure method of preventing unauthorised removal or replacement of D01 fuse links, making it ideal for utility installations, industrial power distribution systems and electrical switchboards where controlled access is required.
Manufactured from durable, halogen-free material, the locking cap is suitable for use on 400 V AC and 250 V DC D01 fuse installations. It contains no live electrical parts, requires no maintenance and offers dependable long-term performance in demanding industrial environments.
The Wöhner 31908 is supplied as the utility (EVU) version, making it particularly suitable for electricity distribution networks and installations where fuse access must be restricted to authorised personnel. The matching utility key is Wöhner 31907.
Key Advantages
- Designed for D01 / E14 screw fuse systems.
- Utility (EVU) locking version for controlled fuse access.
- Suitable for 400 V AC and 250 V DC installations.
- Halogen-free construction.
- Contains no live electrical components.
- Compatible with the Wöhner 31907 utility key.
Key Features
- Wöhner Part Number: 31908
- Product type: D01 locking cap (utility version)
- Fuse size: D01 / E14
- Rated voltage: 400 V AC
- Rated voltage (DC): 250 V DC
- Utility (EVU) locking design.
- Halogen-free construction.
- Pack quantity: 36.
Secure Access Control for D01 Fuse Installations
The Wöhner 31908 locking cap is designed to prevent unauthorised removal or replacement of D01 fuse links while maintaining compliance with IEC fuse system standards. It is widely used in utility infrastructure, industrial facilities and commercial electrical installations where controlled fuse access is essential for operational safety.
Its precision-engineered construction provides a secure fit on compatible D01 fuse holders without affecting the electrical characteristics of the installation. As the accessory contains no live parts, it offers reliable, maintenance-free protection throughout its service life.
Typical Applications
- Utility (EVU) electrical installations.
- Industrial switchboards.
- Commercial power distribution systems.
- Electrical infrastructure projects.
- D01 / E14 screw fuse installations.
- Controlled-access fuse protection systems.