Why Choose the Mersen CMS141NM Modulostar Fuse Holder?
The Mersen CMS141NM, manufacturer item number L331026, is a compact one-pole plus neutral modular fuse holder designed for 14 × 51 mm cylindrical fuse links. Part of the established Mersen Modulostar® CMS14 series, it provides reliable circuit protection and neutral conductor integration within industrial control panels, switchboards and electrical distribution equipment.
This model is supplied with an integrated auxiliary microswitch, allowing remote indication of fuse operation or holder status within an appropriately designed monitoring circuit. This functionality helps maintenance teams identify electrical faults efficiently and supports integration with alarms, PLC inputs and supervisory control systems.
Rated for fuse links up to 50 A and suitable for systems up to 690 V AC or 690 V DC, the CMS141NM combines dependable electrical performance with a compact DIN rail mounted format. Its durable modular enclosure provides IP20 finger-safe protection, including during fuse replacement, helping improve safety during installation and maintenance.
Key Advantages
- Compact one-pole plus neutral fuse holder configuration.
- Designed for standard 14 × 51 mm cylindrical fuse links.
- Suitable for fuse ratings up to 50 A.
- Rated for electrical systems up to 690 V AC and 690 V DC.
- Integrated auxiliary microswitch supports remote status indication.
- IP20 finger-safe protection, including during fuse changing.
- DIN rail mounting simplifies installation within electrical panels.
- Durable modular construction supports demanding industrial applications.
Key Features
- Mersen Modulostar® CMS14 series.
- Catalogue reference: CMS141NM.
- Manufacturer item number: L331026.
- One fused pole plus neutral conductor configuration.
- Suitable for 14 × 51 mm IEC cylindrical fuse links.
- 50 A maximum fuse rating.
- 690 V AC / 690 V DC rated voltage.
- Integrated auxiliary microswitch for remote signalling.
- IP20 finger-safe modular enclosure.
- DIN rail mounted design.
- Compatible with industrial monitoring and automation circuits.
- Manufactured from tough and durable insulating material.
Reliable Fuse Protection with Remote Status Monitoring
The Mersen CMS141NM provides a convenient way to combine a protected live conductor and an unswitched neutral connection within one compact modular assembly. This configuration is particularly useful in single-phase circuits where the live conductor requires fuse protection while the neutral conductor must be incorporated into the same organised panel arrangement.
The integrated microswitch enables remote monitoring of the fuse holder when connected to suitable control equipment. This allows fuse or holder status to be communicated to an alarm, indicator, PLC or building management system, helping reduce fault-finding time and equipment downtime.
Typical Applications
- Industrial control panels.
- Single-phase machinery circuits.
- Electrical switchboards.
- Motor control and auxiliary circuits.
- Transformer and control power protection.
- OEM machinery and automation systems.
- Building services and power distribution equipment.
