Why Choose the Mersen CMS221 Modulostar® Fuse Holder?
The Mersen CMS221 is a robust and compact single-pole modular fuse holder designed to accommodate standard 22 × 58 mm cylindrical fuse links. Part of the established Mersen Modulostar® CMS22 series, it provides dependable circuit protection for industrial control panels, electrical switchboards and power distribution systems.
The CMS221 features an IP20 finger-safe design that helps protect operators from accidental contact with live components, including during normal fuse replacement. Its durable construction and DIN rail mounting format allow panel builders and OEMs to create safe, space-efficient electrical assemblies with straightforward installation and maintenance.
With a rated current of 125 A and rated voltages of 690 V AC and 690 V DC, the CMS221 is suitable for demanding industrial applications. This standard version is supplied without a visual blown-fuse indicator or integrated microswitch, making it an effective solution where direct fuse status signalling is not required.
Key Advantages
- Compact single-pole modular fuse holder for industrial installations.
- Designed for standard 22 × 58 mm cylindrical fuse links.
- High 125 A rated current for demanding electrical loads.
- Suitable for systems operating at up to 690 V AC or 690 V DC.
- IP20 finger-safe construction improves protection during operation and maintenance.
- DIN rail mounting simplifies installation inside electrical panels.
Key Features
- Mersen Modulostar® CMS22 series.
- Single-pole fuse holder.
- Accepts 22 × 58 mm cylindrical fuse links.
- 125 A rated current.
- 690 V AC / 690 V DC rated voltage.
- 100 kA short-circuit current rating.
- 8 kV rated impulse withstand voltage.
- IP20 finger-safe design.
- DIN rail mounting.
- Standard configuration without visual indication or microswitch.
Reliable Cylindrical Fuse Protection for Industrial Systems
The Mersen CMS221 securely houses a 22 × 58 mm cylindrical fuse link, providing a reliable means of protecting electrical equipment against overcurrents and short circuits. Its high current and voltage ratings make it suitable for industrial power circuits where dependable protection and safe maintenance access are essential.
The modular design allows the fuse holder to be installed efficiently alongside other protective and switching devices on a DIN rail. Its finger-safe construction, durable insulating materials and straightforward fuse-changing mechanism make it well suited to both new panel builds and replacement applications.
Typical Applications
- Industrial control panels.
- Power distribution systems.
- Motor control centres.
- Electrical switchboards.
- OEM machinery and production equipment.
- Industrial automation cabinets.
