Why Choose the Mersen CMS223NM Modulostar® Fuse Holder?
The Mersen CMS223NM is a robust three-pole plus neutral modular fuse holder designed for dependable protection and isolation in low voltage industrial electrical systems. Part of the established Mersen Modulostar® CMS22 series, it accommodates standard 22 × 58 mm cylindrical fuse links and includes a dedicated neutral pole for three-phase installations requiring a neutral connection.
An integrated microswitch provides remote status signalling, allowing fuse operation to be monitored through control circuits, alarms, PLC inputs or building management systems. This feature can help maintenance teams identify electrical faults more quickly, reduce diagnostic time and minimise disruption to industrial processes.
Rated for up to 125 A and 690 V AC or 690 V DC, the CMS223NM combines high electrical performance with an IP20 finger-safe design. Its compact DIN rail mounting format makes it suitable for industrial switchboards, motor control centres, automation cabinets and OEM machinery.
Key Advantages
- Three-pole plus neutral configuration for three-phase electrical systems.
- Designed for standard 22 × 58 mm cylindrical fuse links.
- Integrated microswitch enables remote fuse-status monitoring.
- High 125 A rated current for demanding industrial circuits.
- Suitable for operation at up to 690 V AC or 690 V DC.
- IP20 finger-safe construction improves protection during operation and maintenance.
Key Features
- Mersen Modulostar® CMS22 series.
- Three fused poles plus neutral.
- Accepts 22 × 58 mm cylindrical fuse links.
- 125 A rated current.
- 690 V AC IEC rated voltage.
- 690 V DC IEC rated voltage.
- Integrated auxiliary microswitch.
- IP20 finger-safe protection.
- DIN rail mounting.
- RoHS-compliant construction.
Remote Fuse Monitoring for Three-Phase Systems
The Mersen CMS223NM provides secure installation for three 22 × 58 mm cylindrical fuse links while incorporating a neutral connection within the same modular assembly. This configuration supports neat, space-efficient panel construction and provides reliable overcurrent protection for three-phase equipment and distribution circuits.
The built-in microswitch allows the fuse holder to communicate status information to an external monitoring system. This makes the CMS223NM particularly valuable in automated installations where rapid fault notification, preventive maintenance and reduced equipment downtime are important.
Typical Applications
- Three-phase industrial control panels.
- Motor control centres.
- Electrical switchboards and distribution systems.
- OEM machinery and production equipment.
- Automation cabinets with remote fault monitoring.
- Industrial power and process control systems.
