Wöhner 31929 two-pole Class J fuse holder with integrated indication, rated up to 100 A and 600 V AC/DC for mounting-rail industrial circuit protection.
£16.13
The Wöhner 31929 is a robust two-pole Class J fuse holder with integrated fuse indication, designed for dependable overcurrent protection in industrial power distribution systems. It accommodates compatible Class J fuse links rated from 70 to 100 A, providing secure protection for electrical feeders, machinery and control-panel circuits.
Designed for professional panel construction, the Wöhner 31929 combines a compact modular arrangement with practical status indication. Its integrated indicator helps maintenance personnel identify an operated fuse quickly, reducing diagnostic time and supporting faster restoration of industrial equipment.
Rated at up to 100 A and 600 V AC/DC, this genuine Wöhner fuse holder is suitable for demanding industrial installations. Its mounting-rail design and robust box terminals support efficient installation within switchgear, distribution panels and OEM electrical assemblies.
The Wöhner 31929 securely accommodates two compatible Class J fuse links to protect conductors and connected equipment against overloads and short circuits. When a fuse operates, the integrated indication helps engineers locate the affected circuit without unnecessary testing across multiple fuse positions.
Its two-pole arrangement makes the holder suitable for industrial circuits requiring simultaneous protection of two conductors. The modular design also helps panel builders create organised electrical assemblies while retaining convenient access for inspection and fuse replacement.
| Current | 30 A |
|---|---|
| Phase | Single Phase |
| Manufacturer | Wöhner |
| Model | 31929 |
| Alternative part number | 31929000 |
| Product type | Class J cylindrical fuse holder with indication |
| Fuse class | Class J |
| Fuse rating | 70-100 A |
| Fuse dimensions | 29 × 118 mm |
| Configuration | 2-pole |
| Rated current | 100 A |
| Rated voltage | 600 V AC / 600 V DC |
| Frequency | 50 / 60 Hz |
| Mounting type | Mounting rail |
| Connection type | Industrial box terminals |
| Application | Industrial feeder and circuit protection |
It is a two-pole fuse holder designed to accommodate Class J fuse links for overcurrent protection in industrial electrical systems.
The holder is designed for compatible Class J fuse links rated from 70 to 100 A with dimensions of approximately 29 × 118 mm.
The indication helps maintenance personnel identify when a fitted fuse has operated, simplifying fault diagnosis and reducing maintenance time.
The Wöhner 31929 is rated for electrical systems operating at up to 600 V AC or 600 V DC.
It is designed for mounting on a suitable rail inside an electrical distribution panel, switchboard or industrial control cabinet.
Wöhner Class J fuse holders are used by panel builders, OEM manufacturers and industrial engineers seeking reliable circuit protection, secure conductor connections and efficient fault identification.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...