Why Choose the Mersen CMS22W2 Auxiliary Microswitch Kit?
The Mersen CMS22W2, manufacturer item number B331201, is a two-auxiliary-microswitch kit designed for prepared three-pole Mersen Modulostar® CMS22 modular fuse holders. It enables remote indication of fuse-holder position or fuse operation within industrial control, protection and monitoring systems.
The kit allows status signals from a compatible CMS22 fuse holder to be connected to PLCs, alarm circuits, control relays or supervisory systems. This supports faster fault detection and improved equipment monitoring without requiring maintenance personnel to inspect every fuse holder manually.
Each auxiliary microswitch is suitable for low-current signalling from 1 mA at 4 V and medium-current circuits up to 5 A. With a rated insulation voltage of 250 V AC and Faston lug connections, the CMS22W2 provides a practical monitoring accessory for industrial switchboards and machinery panels.
Key Advantages
- Includes two auxiliary microswitches for remote indication.
- Designed for prepared three-pole Modulostar® CMS22 fuse holders.
- Supports fuse-holder position and fuse-operation monitoring.
- Suitable for connection to PLCs, alarms and control systems.
- Operates with low-current signals from 1 mA at 4 V.
- Supports medium-current switching up to 5 A.
- Faston lug connections simplify electrical installation.
- Helps reduce fault-finding time and equipment downtime.
Key Features
- Mersen auxiliary switch accessory.
- Catalogue number: CMS22W2.
- Manufacturer item number: B331201.
- Two auxiliary microswitches.
- Designed for three-pole CMS22 assemblies.
- 250 V AC rated insulation voltage.
- Minimum operational current and voltage of 1 mA at 4 V AC or DC.
- Maximum switching current of 5 A.
- Faston lug electrical connections.
- Suitable for prepared fuse disconnectors only.
Remote Fuse-Holder Status Monitoring
Auxiliary microswitches convert the mechanical position or operating status of a compatible fuse holder into an electrical signal. This signal can be used by a PLC, indicator lamp, alarm circuit or building management system to provide remote status information.
The Mersen CMS22W2 is designed for prepared three-pole CMS22 fuse holders and contains two microswitches within one accessory kit. When fuse-operation monitoring is required, compatible striker-equipped fuse links must be used so that the microswitch mechanism can detect fuse operation correctly.
Typical Applications
- Industrial control panels and switchboards.
- PLC-controlled machinery.
- Remote fuse-status monitoring.
- Alarm and fault-signalling circuits.
- Motor control centres.
- Power distribution equipment.
- OEM automation and panel-building projects.
