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MERSEN FUSE BASE MOD. CMS.14 3P C/I CMS143I
Mersen CMS143I three-pole Modulostar CMS14 modular fuse holder for 14×51 mm cylindrical fuse links, rated 50 A, 690 V AC/DC with integrated visual blown fuse indicator and IP20 protection.
£35.17
Why Choose the Mersen CMS143I Modular Fuse Holder?
The Mersen CMS143I is a high-quality three-pole modular fuse holder from the trusted Modulostar® CMS14 series, designed for the safe installation and protection of 14 × 51 mm cylindrical fuse links in industrial and commercial electrical systems. Engineered for dependable performance, it provides reliable circuit protection while simplifying maintenance through its integrated blown fuse indication.
Designed for DIN rail mounting, the CMS143I combines a compact footprint with robust thermoplastic construction and IP20 finger-safe protection. Its modular design makes it ideal for panel builders, OEMs and electrical contractors requiring dependable overcurrent protection within control panels and switchboards.
Suitable for applications up to 690 V AC/DC with a 50 A current rating, the CMS143I accommodates 14 × 51 mm cylindrical fuse links and features an integrated visual blown fuse indicator, allowing maintenance personnel to quickly identify fuse status and minimise equipment downtime.
Key Advantages
- Designed for 14 × 51 mm cylindrical fuse links.
- Three-pole modular fuse holder for industrial applications.
- Integrated visual blown fuse indicator for faster maintenance.
- 50 A rated current with up to 690 V AC/DC operation.
- Finger-safe IP20 protection enhances operator safety.
- DIN rail mounting simplifies installation within electrical panels.
- Robust thermoplastic construction for long service life.
Key Features
- Mersen Modulostar® CMS14 series.
- Catalogue number: CMS143I.
- Three-pole fuse holder configuration.
- Suitable for 14 × 51 mm IEC cylindrical fuse links.
- 50 A current rating.
- 690 V AC / 690 V DC rated voltage.
- Integrated visual blown fuse indication.
- IP20 finger-safe design.
- DIN rail mounting.
- Suitable for industrial control and distribution panels.
Reliable Protection for Electrical Distribution Systems
The Mersen CMS143I provides a safe and convenient method of housing cylindrical fuse links used to protect motors, transformers, distribution circuits, control panels and industrial equipment from overcurrent and short-circuit faults. Its modular design enables straightforward installation and future expansion where required.
The integrated visual indication helps maintenance teams identify operated fuse links quickly, reducing troubleshooting time and helping restore equipment back into service more efficiently. Combined with finger-safe IP20 construction, the CMS143I offers dependable protection for modern industrial electrical installations.
Typical Applications
- Industrial control panels.
- Electrical switchboards.
- Motor protection circuits.
- Transformer protection.
- Low voltage power distribution.
- OEM machinery.
- Building services electrical systems.
Technical Specifications
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| Fuse Indication | Visual indicator | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse base / holder | |
| Fuse Size | 14x51 mm | |
| Current | 50 A | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | Modulostar® CMS14 | |
| Model | CMS143I | |
| Item number | K331071 | |
| Product type | Modular fuse holder | |
| Number of poles | 3 | |
| Fuse size | 14 × 51 mm | |
| Rated current | 50 A | |
| Rated voltage | 690 V AC / 690 V DC | |
| Protection rating | IP20 | |
| Mounting type | DIN rail | |
| Indication | Visual blown fuse indicator | |
| Compliance | IEC, RoHS compliant | |
| HS Code | 85361050 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen CMS143I used for?
The CMS143I is a three-pole modular fuse holder designed to safely house 14 × 51 mm cylindrical fuse links for protecting industrial electrical circuits.
What fuse size does the CMS143I accept?
It is designed for standard 14 × 51 mm IEC cylindrical fuse links.
Does this fuse holder include a blown fuse indicator?
Yes. The CMS143I features an integrated visual blown fuse indicator to simplify maintenance and fault identification.
What is the voltage and current rating?
The fuse holder is rated for 50 A and up to 690 V AC / 690 V DC.
How is the CMS143I mounted?
The unit is designed for quick installation onto standard DIN rails inside electrical control panels and distribution boards.
Trusted by Electrical Panel Builders Worldwide
Mersen Modulostar® fuse holders are trusted by panel builders, OEM manufacturers and industrial maintenance engineers for delivering safe, reliable and standards-compliant fuse protection across demanding electrical installations.
