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31284 Wohner holder for cylindrical fuses
Wöhner 31284 AMBUS Panel single-pole holder for 21 × 57 mm Class J cylindrical fuses, rated at 30 A and 600 V AC with a 50 mm² box terminal and DIN rail mounting.
£26.43
Why Choose the Wöhner 31284 Class J Fuse Holder?
The Wöhner 31284 is a robust single-pole holder for Class J cylindrical fuses, designed to provide secure fuse mounting and dependable overcurrent protection in industrial electrical systems. Part of the Wöhner AMBUS® Panel range, it is suitable for panel builders, machine manufacturers and engineers requiring a reliable fuse holder for North American Class J fuse applications.
Designed for 21 × 57 mm Class J fuse links, the Wöhner 31284 combines compact DIN rail mounting with a large box terminal capable of accepting substantial conductor sizes. Its practical design supports straightforward installation, convenient maintenance and efficient use of space inside industrial control panels and switchgear assemblies.
With a rated current of 30 A and an operating voltage of up to 600 V AC, this single-pole fuse holder is suitable for protecting branch circuits, machinery, power supplies and automation equipment. Its compliance with the UL 248-8 Class J fuse standard makes it particularly suitable for equipment intended for international and North American markets.
Key Advantages
- Designed for Class J 21 × 57 mm cylindrical fuse links.
- 30 A rated current for industrial branch-circuit protection.
- 600 V AC voltage rating suitable for demanding electrical systems.
- Compact single-pole configuration supports flexible panel layouts.
- Large box terminal accommodates conductors up to 50 mm².
- DIN rail mounting enables fast installation and convenient maintenance.
Key Features
- Wöhner AMBUS® Panel series.
- Model 31284.
- Single-pole Class J fuse holder.
- Compatible with 21 × 57 mm cylindrical fuse links.
- 30 A rated current.
- 600 V AC rated voltage.
- Box terminal with a conductor capacity of up to 50 mm².
- Large clamping range suitable for two identical adjacent conductors.
- Integrated holder for a circuit identification label.
- DIN mounting rail installation for control panels and switchgear.
Reliable Class J Circuit Protection
Class J fuses provide effective overcurrent and short-circuit protection for industrial electrical circuits. The Wöhner 31284 securely retains the fuse link and provides a dependable electrical connection, helping protect machinery, power distribution equipment and automation components against damaging fault currents.
The single-pole modular design allows multiple holders to be positioned together when protection is required across several phases or circuits. Its large terminal capacity and DIN rail format make it particularly practical for OEM control panels, industrial switchboards and electrical installations built for international markets.
Typical Applications
- Industrial control panels and switchboards.
- Machinery branch-circuit protection.
- Power supplies and control transformers.
- Motor control and automation systems.
- Industrial power distribution equipment.
- Equipment designed for North American electrical standards.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Busbar holder / support | |
|---|---|---|
| Current | 30 A | |
| Phase | Single Phase | |
| Poles | 1-pole | |
| Manufacturer | Wöhner | |
| Series | AMBUS® Panel | |
| Model | 31284 | |
| Full part number | 31284 000 | |
| Product type | Holder for cylindrical Class J fuses | |
| Fuse class | Class J | |
| Fuse size | 21 × 57 mm | |
| Number of poles | 1 | |
| Rated current | 30 A | |
| Rated voltage | 600 V AC | |
| Fuse standard | UL 248-8 | |
| Terminal type | Box terminal | |
| Maximum conductor capacity | 50 mm² | |
| Mounting type | DIN mounting rail | |
| System | Panel | |
| EAN | 4021267312848 | |
| Approximate weight | 0.158 kg |
Frequently Asked Questions
What fuse type does the Wöhner 31284 accept?
The holder is designed for Class J cylindrical fuse links measuring 21 × 57 mm.
What is the current rating of the Wöhner 31284?
The Wöhner 31284 has a rated current of 30 A.
What voltage can the Wöhner 31284 support?
The fuse holder is rated for electrical systems operating at up to 600 V AC.
How is the Wöhner 31284 mounted?
It is designed for installation on a standard DIN mounting rail inside an electrical panel or switchgear assembly.
What conductor size can be connected?
The integrated box terminal supports conductors with a cross-sectional area of up to 50 mm².
Trusted by Industrial Panel Builders
Wöhner fuse holders are widely specified by electrical panel builders, machinery manufacturers and industrial engineers for dependable circuit protection, practical installation and reliable performance in low-voltage power distribution systems.
