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31940 Wohner holder for cylindrical fuses, with pilot switch
Wöhner 31940 AMBUS Panel single-pole cylindrical fuse holder with pilot switch for 14 × 51 mm fuse links with striker pins, rated 50 A at 690 V for mounting-rail installation.
£26.16
Why Choose the Wöhner 31940 Fuse Holder with Pilot Switch?
The Wöhner 31940 is a professional single-pole cylindrical fuse holder with an integrated pilot switch, designed for 14 × 51 mm fuse links with a striker pin. Part of the Wöhner AMBUS® Panel range, it provides dependable overcurrent protection while enabling remote or local signalling when the fitted fuse link operates.
Rated at 50 A and 690 V, the Wöhner 31940 is suitable for demanding industrial control, machinery and power distribution applications. When a compatible striker fuse ruptures, its striker pin mechanically operates the pilot switch, allowing the fuse status to be integrated into an alarm, monitoring or control circuit.
Designed for mounting-rail installation, this compact fuse holder supports organised panel layouts, straightforward maintenance and efficient fault detection. It is an ideal solution for installations where rapid notification of an operated fuse is required.
Key Advantages
- Designed for 14 × 51 mm cylindrical fuse links.
- Integrated pilot switch for fuse-status signalling.
- Compatible with fuse links featuring a striker pin.
- Single-pole configuration for individual circuit protection.
- 50 A rated current and 690 V rated voltage.
- Mounting-rail design for efficient panel installation.
Key Features
- Wöhner AMBUS® Panel series.
- Holder for 14 × 51 mm cylindrical fuse links.
- 1-pole configuration.
- 50 A rated current.
- 690 V rated voltage.
- Integrated mechanically operated pilot switch.
- Designed for fuse links with striker pins.
- Suitable for mounting-rail installation.
Reliable Protection with Fuse-Status Monitoring
The Wöhner 31940 combines conventional fuse protection with a practical signalling function. When a compatible striker-pin fuse link operates, the striker mechanism actuates the integrated pilot switch. This enables the fault condition to be communicated to a control system, indicator, alarm or monitoring circuit.
This functionality can reduce fault-finding time by allowing maintenance personnel or automated systems to identify an operated fuse promptly. It is particularly valuable in industrial processes where rapid intervention and minimised downtime are important.
Typical Applications
- Industrial control panels.
- Machine-building and automation systems.
- Motor and drive protection circuits.
- Industrial power distribution equipment.
- Alarm and remote-monitoring circuits.
- OEM electrical assemblies.
Technical Specifications
Tick the specs you need, then view products that match.
| Device Type | Busbar holder / support | |
|---|---|---|
| Current | 50 A | |
| Manufacturer | Wöhner | |
| Series | AMBUS® Panel | |
| Model | 31940 | |
| Manufacturer article number | 31940 000 | |
| Product type | Cylindrical fuse holder with pilot switch | |
| Fuse size | 14 × 51 mm | |
| Compatible fuse type | Cylindrical fuse link with striker pin | |
| Configuration | 1-pole | |
| Rated current | 50 A | |
| Rated voltage | 690 V | |
| Indication method | Mechanically operated pilot switch | |
| Mounting type | Mounting rail |
Frequently Asked Questions
What is the Wöhner 31940 used for?
It is a single-pole fuse holder for 14 × 51 mm cylindrical fuse links with striker pins, providing circuit protection and pilot-switch signalling when the fuse operates.
What does the pilot switch do?
The pilot switch changes state when the striker pin of a compatible operated fuse mechanically actuates it, allowing the fuse condition to be signalled to an alarm, control or monitoring circuit.
Can a standard 14 × 51 mm fuse be used?
The holder accepts the 14 × 51 mm format, but the pilot-switch function requires a compatible fuse link equipped with a striker pin.
What are the electrical ratings?
The Wöhner 31940 is rated at 50 A and 690 V, subject to the selected fuse link and installation requirements.
How is the Wöhner 31940 installed?
It is designed for mounting on a suitable rail within an industrial control panel, switchgear assembly or electrical enclosure.
Trusted by Electrical Professionals Worldwide
Wöhner AMBUS® Panel fuse holders are used by panel builders, OEM manufacturers and industrial engineers who require reliable circuit protection, compact installation and effective fuse-status monitoring.
