Why Choose the Mersen USMSW4 Auxiliary Microswitch Kit?
The Mersen USMSW4, manufacturer reference G227959, is an auxiliary microswitch kit developed for compatible Mersen UltraSafe US22 modular fuse holders. It enables remote electrical indication of fuse-holder status, helping control systems and maintenance personnel identify whether a fuse carrier is closed, opened or associated with an operated fuse.
The kit includes two auxiliary microswitches for installation on one suitably prepared US22 fuse-holder pole. These contacts can be connected to PLC inputs, alarm circuits, indicator lamps or supervisory systems, allowing fuse-holder operation to be monitored without requiring direct visual inspection inside the electrical panel.
Designed for compatible 22 × 58 mm UltraSafe fuse holders, the USMSW4 uses Faston-type connections for straightforward control wiring. Its compact format supports efficient integration into industrial switchboards, machinery panels, power conversion equipment and other installations where remote fuse-status monitoring can reduce troubleshooting time and improve system availability.
Key Advantages
- Provides remote status indication for compatible Mersen US22 fuse holders.
- Includes two auxiliary microswitches for one prepared fuse-holder pole.
- Supports connection to PLCs, alarms and monitoring equipment.
- Helps maintenance teams identify fuse-holder operation more quickly.
- Compact design preserves valuable control-panel space.
- Faston connections simplify control-circuit wiring.
- Suitable for industrial automation and electrical distribution systems.
Key Features
- Mersen UltraSafe US22 accessory.
- Manufacturer reference: G227959.
- Two auxiliary microswitches.
- Designed for one compatible US22 fuse-holder pole.
- Suitable for prepared Mersen 22 × 58 mm fuse disconnectors.
- Faston lug electrical connections.
- Remote indication of fuse-holder or fuse status.
- Suitable for low-current signalling and control circuits.
- Compact accessory for DIN rail mounted fuse-holder assemblies.
Reliable Remote Fuse-Holder Monitoring
The Mersen USMSW4 converts the mechanical status of a compatible UltraSafe fuse holder into electrical signals that can be used by an external monitoring or control system. This enables alarms, PLC logic or indicator circuits to respond when the fuse carrier is opened or when a monitored operating condition changes.
Remote indication is particularly valuable in continuously operated machinery and distributed electrical systems, where fast identification of an affected circuit can reduce diagnostic time. The USMSW4 also helps panel builders create more informative control systems without substantially increasing the footprint of the fuse-holder assembly.
Typical Applications
- Industrial control panels and switchboards.
- PLC-based fuse-status monitoring.
- Remote alarm and indication circuits.
- Variable speed drives and power converters.
- Renewable energy and battery systems.
- Industrial machinery and automation equipment.
- Motor control and power distribution systems.
- OEM electrical panel assemblies.
