Why Choose the Mersen CMS223M Modulostar® Fuse Holder?
The Mersen CMS223M, manufacturer item number B331109, is a robust three-pole modular fuse holder with microswitch indication, designed for 22 × 58 mm cylindrical fuse links. Part of the Mersen Modulostar® CMS22 series, it combines dependable circuit protection with remote position monitoring for industrial control and power distribution applications.
Rated at 125 A and up to 690 V AC or 690 V DC under IEC ratings, the CMS223M is suitable for demanding three-phase electrical systems. Its integrated microswitch arrangement allows the operating status of the fuse holder to be communicated to a PLC, control circuit or monitoring system.
The CMS223M features an IP20 finger-safe design under applicable IEC requirements, including during normal fuse replacement. Its modular construction and standard DIN rail mounting make it well suited to compact industrial control panels, switchboards, machinery and OEM electrical assemblies.
Key Advantages
- Three-pole modular fuse holder for 22 × 58 mm cylindrical fuse links.
- Integrated microswitch indication for remote status monitoring.
- 125 A current rating for demanding industrial circuits.
- Rated for up to 690 V AC and 690 V DC.
- IP20 finger-safe construction under applicable IEC standards.
- Supports integration with PLCs and industrial monitoring systems.
- Compact modular design helps optimise control-panel space.
- Quick installation on a standard 35 mm DIN rail.
Key Features
- Mersen Modulostar® CMS22 series.
- Catalogue number: CMS223M.
- Manufacturer item number: B331109.
- Three-pole modular fuse-holder configuration.
- Compatible with 22 × 58 mm cylindrical fuse links.
- 125 A rated current.
- 690 V AC / 690 V DC IEC rating.
- Integrated auxiliary microswitch functionality.
- IP20 protection rating.
- RoHS-compliant construction.
Circuit Protection with Remote Status Monitoring
The CMS223M securely accommodates three 22 × 58 mm cylindrical fuse links, providing reliable protection for three-phase electrical circuits. When correctly selected fuse links are installed, the assembly helps protect cables, machinery and electrical equipment against overload and short-circuit conditions.
Its microswitch functionality enables remote monitoring of the fuse-holder operating position. This allows status information to be incorporated into PLCs, alarms or supervisory control systems, helping maintenance teams identify changes in equipment condition and improve diagnostic efficiency.
Typical Applications
- Industrial control panels and switchboards.
- Three-phase motor control circuits.
- Machinery and automation systems.
- PLC-controlled electrical equipment.
- Power distribution assemblies.
- Transformer and power supply protection.
- OEM panel-building projects.
