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MERSEN FUSE BASE MOD.CMS.14 C/MICRO+IND 3P CMS143MI

MERSEN FUSE BASE MOD.CMS.14 C/MICRO+IND 3P CMS143MI

Mersen CMS143MI Modulostar modular fuse holder for 14×51 mm cylindrical fuse links with 3-pole configuration, visual blown fuse indicator, integrated microswitch, 50 A rating and 690 V AC/DC operation.

SKU: CMS143MIAlt SKU: CMS143MIMPN: P331006
Price
List Price £87.36 ex VAT
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£87.36
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Why Choose the Mersen CMS143MI Modulostar® Fuse Holder?

The Mersen CMS143MI is a premium Modulostar® modular fuse holder designed for 14×51 mm cylindrical fuse links. Featuring a 3-pole configuration, integrated visual blown fuse indicator and auxiliary microswitch, it provides reliable circuit protection together with both local and remote fuse-status monitoring for industrial electrical systems.

Part of the trusted Mersen Modulostar® CMS14 series, the CMS143MI combines robust thermoplastic construction with IP20 finger-safe protection, ensuring safe installation and maintenance. The integrated microswitch allows connection to PLCs, alarm systems and supervisory control equipment, helping maintenance personnel identify blown fuses quickly and minimise downtime.

Rated at 50 A and suitable for 690 V AC and 690 V DC systems, the CMS143MI is ideal for industrial control panels, OEM machinery, motor control centres and electrical distribution equipment requiring dependable protection and enhanced diagnostics.

Key Advantages

  • Designed for 14×51 mm cylindrical fuse links.
  • 3-pole modular configuration.
  • Integrated visual blown fuse indicator.
  • Built-in auxiliary microswitch for remote fuse-status monitoring.
  • 50 A current rating.
  • 690 V AC / 690 V DC rated operation.
  • Finger-safe IP20 protection.
  • DIN rail mounting for straightforward installation.
  • Durable thermoplastic construction for demanding industrial environments.

Key Features

  • Mersen Modulostar® CMS14 series.
  • Model CMS143MI.
  • Manufacturer item number P331006.
  • Suitable for 14×51 mm cylindrical fuse links.
  • 3-pole design.
  • Integrated visual blown fuse indicator.
  • Integrated auxiliary microswitch.
  • 50 A rated current.
  • 690 V AC / 690 V DC voltage rating.
  • DIN rail mounting.
  • IP20 finger-safe enclosure.
  • RoHS compliant.

Reliable Protection with Local and Remote Fuse Monitoring

The Mersen CMS143MI combines dependable overcurrent protection with integrated local and remote monitoring. The visual blown fuse indicator allows maintenance personnel to identify an operated fuse immediately, while the auxiliary microswitch enables remote signalling to PLCs, HMIs or building management systems for faster fault diagnosis.

Its compact modular construction, finger-safe design and DIN rail mounting make it an ideal choice for industrial automation, machinery, motor control and electrical distribution systems where maximum reliability and rapid maintenance are essential.

Typical Applications

  • Industrial control panels.
  • Motor control centres.
  • OEM machinery.
  • Industrial automation systems.
  • Power distribution equipment.
  • PLC-monitored electrical systems.
  • Process control installations.

Technical Specifications

Phase Three Phase
Manufacturer Mersen
Series Modulostar® CMS14
Model CMS143MI
Manufacturer item number P331006
EAN 8430399000275
Product type Modular fuse holder
Fuse size 14 × 51 mm cylindrical fuse links
Number of poles 3
Rated current 50 A
Rated voltage AC 690 V
Rated voltage DC 690 V
Fuse indication Visual blown fuse indicator
Auxiliary signalling Integrated microswitch
Protection rating IP20
Mounting type DIN rail mounting
Approximate weight 0.45 kg
RoHS compliant Yes
HS Code 85361050
Country of Manufacture Tunisia
Poles 3-pole
Device Type Fuse base / holder
Fuse Size 14x51 mm
Current 50 A
Voltage 690 V

Frequently Asked Questions

What is the Mersen CMS143MI used for?

The CMS143MI is a three-pole modular fuse holder designed for protecting industrial AC and DC electrical circuits using 14×51 mm cylindrical fuse links.

Which fuse size is compatible with the CMS143MI?

It is designed specifically for 14×51 mm cylindrical fuse links.

Does the CMS143MI include a blown fuse indicator?

Yes. It incorporates an integrated visual blown fuse indicator together with an auxiliary microswitch for remote monitoring.

What are the electrical ratings?

The CMS143MI is rated for 50 A and operates on systems up to 690 V AC and 690 V DC.

Where is the CMS143MI typically installed?

It is designed for DIN rail mounting inside industrial control panels, switchboards, machinery and electrical distribution systems.

Trusted by Electrical Professionals Worldwide

Mersen Modulostar® fuse holders are trusted by OEMs, panel builders and industrial engineers worldwide for delivering dependable circuit protection, finger-safe operation and reliable local and remote fuse monitoring.

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At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.

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