Why Choose the Mersen CMS142I Modulostar Fuse Holder?
The Mersen CMS142I, manufacturer item number M331004, is a robust two-pole modular fuse holder designed for 14 × 51 mm cylindrical fuse links. Part of the proven Mersen Modulostar® CMS14 series, it provides reliable overcurrent protection for industrial control panels, machinery and low-voltage electrical distribution systems.
This model incorporates an integrated visual blown-fuse indicator, enabling maintenance personnel to identify an operated fuse link quickly. Clear local indication can reduce troubleshooting time and help restore protected machinery or electrical equipment to service more efficiently.
Rated at 50 A and suitable for systems up to 690 V AC or 690 V DC, the CMS142I combines dependable electrical performance with compact DIN rail installation. Its durable modular enclosure provides IP20 finger-safe protection, including during fuse replacement, helping improve safety during operation and maintenance.
Key Advantages
- Compact two-pole modular fuse holder.
- Designed for standard 14 × 51 mm cylindrical fuse links.
- 50 A rated current for industrial circuit protection.
- Suitable for systems up to 690 V AC and 690 V DC.
- Integrated visual blown-fuse indicator supports rapid fault identification.
- IP20 finger-safe construction, including during fuse replacement.
- DIN rail mounting simplifies installation inside electrical panels.
- High 100 kA short-circuit current rating.
Key Features
- Mersen Modulostar® CMS14 series.
- Catalogue reference: CMS142I.
- Manufacturer item number: M331004.
- Two-pole fuse holder configuration.
- Accepts 14 × 51 mm IEC cylindrical fuse links.
- 50 A ampere rating.
- 690 V AC / 690 V DC rated voltage.
- Integrated visual fuse status indicator.
- IP20 finger-safe modular enclosure.
- DIN rail mounting in accordance with EN 60715.
- Rated impulse withstand voltage of 8 kV.
- Suitable for both AC and DC circuit protection.
Reliable Two-Pole Circuit Protection
The Mersen CMS142I provides a secure and accessible method of installing two 14 × 51 mm cylindrical fuse links within one modular assembly. When fitted with correctly selected fuse links, it supports effective protection against overload and short-circuit conditions across two conductors or phases.
The integrated visual indicator allows engineers to locate an operated fuse link without extensive electrical testing. Combined with its finger-safe housing and straightforward DIN rail mounting, the CMS142I is suitable for new panel builds, machinery upgrades and replacement applications.
Typical Applications
- Industrial control panels.
- Electrical switchboards and distribution boards.
- Motor and transformer protection circuits.
- Industrial machinery and production equipment.
- Power conversion and automation systems.
- OEM electrical assemblies.
- Commercial and industrial power distribution.
