Why Choose the Mersen CMS221MI Modulostar® Fuse Holder?
The Mersen CMS221MI, manufacturer reference N331074, is a high-performance Modulostar® modular fuse holder designed for 22×58 mm cylindrical fuse links. Its single-pole configuration provides dependable circuit protection and isolation for industrial control panels, machinery and low voltage power distribution equipment.
This model incorporates both a visual blown fuse indicator and an integrated microswitch. The visual indicator enables rapid local identification of an operated fuse, while the microswitch can provide remote fuse-status signalling to a PLC, alarm circuit or supervisory control system.
Rated at 125 A and suitable for systems up to 690 V AC and 690 V DC, the CMS221MI is engineered for demanding industrial applications. Its DIN rail mounting format and finger-safe IP20 construction simplify installation and help protect personnel from accidental contact with live components.
Key Advantages
- Designed for 22×58 mm cylindrical fuse links.
- Compact single-pole configuration.
- Integrated visual blown fuse indicator supports rapid fault identification.
- Built-in microswitch enables remote fuse-status monitoring.
- 125 A current rating for demanding industrial circuits.
- Suitable for systems up to 690 V AC and 690 V DC.
- Finger-safe IP20 protection, including during fuse replacement.
- DIN rail mounting provides straightforward panel installation.
Key Features
- Mersen Modulostar® CMS22 series.
- Catalogue number CMS221MI.
- Manufacturer item number N331074.
- Accepts 22×58 mm cylindrical fuse links.
- One-pole modular design.
- 125 A ampere rating.
- 690 V AC / 690 V DC rated voltage.
- Integrated visual fuse-status indicator.
- Integrated auxiliary microswitch.
- IP20 finger-safe construction.
- DIN rail mounting.
- RoHS-compliant design.
Reliable Protection with Local and Remote Fuse Monitoring
The Mersen CMS221MI securely houses a 22×58 mm cylindrical fuse link, allowing the correctly selected fuse to protect electrical equipment against overload and short-circuit currents. The holder also provides a convenient means of isolating the fuse during inspection or replacement.
Its combined visual indicator and microswitch improve maintenance efficiency by providing both local and remote notification when a fuse has operated. This functionality is particularly valuable in automated equipment and critical industrial systems where rapid fault identification can help minimise downtime.
Typical Applications
- Industrial control panels.
- Motor control centres.
- Electrical distribution boards.
- OEM machinery and production equipment.
- Industrial automation systems.
- PLC-monitored electrical circuits.
- AC and DC power distribution systems.
