MERSEN FUSE CMS 27 III+N CMS273N

MERSEN FUSE CMS 27 III+N CMS273N

The Modulostar® CMS273N fuse holder is engineered for demanding industrial and commercial applications requiring reliable circuit protection up to 800VAC/800VDC. Designed to accommodate 27x60mm fuse links, this 3-pole plus neutral unit enables safe and efficient multi-phase protection.

SKU: CMS273NAlt SKU: CMS273NMPN: W210584
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Why Choose the Mersen CMS273N Fuse Monitoring Microswitch?

The Mersen CMS273N is a compact fuse monitoring microswitch accessory designed to provide electrical indication when a compatible fuse or fuse-switch device has operated. Developed for use with selected Mersen low-voltage protection equipment, it supports faster fault identification and more efficient maintenance in industrial electrical installations.

By converting the mechanical operation of a compatible fuse indicator or striker into an electrical contact signal, the CMS273N can help communicate fuse status to alarms, indicator lamps, programmable logic controllers and supervisory control systems. This allows maintenance personnel to identify an affected circuit without manually inspecting every fuse.

Its compact construction makes the Mersen CMS273N microswitch suitable for installation within electrical control panels, switchboards and machinery cabinets where reliable remote fuse indication is required. Compatibility should always be confirmed against the specific Mersen fuse holder, fuse switch or protection device used in the installation.

Key Advantages

  • Provides remote electrical indication of fuse operation.
  • Helps maintenance teams locate failed fuses quickly.
  • Suitable for integration with alarms, indicator circuits and PLC inputs.
  • Compact accessory for space-conscious electrical panels.
  • Supports improved equipment monitoring and reduced troubleshooting time.
  • Designed for use with compatible Mersen fuse protection equipment.

Key Features

  • Mersen fuse monitoring microswitch accessory.
  • Model reference CMS273N.
  • Electromechanical fuse-status signalling.
  • Suitable for remote indication and control circuits.
  • Compact design for panel and switchboard installations.
  • Can support connection to PLCs and monitoring equipment.
  • Designed for dependable operation in industrial environments.
  • Intended for use with compatible Mersen fuse devices.

Reliable Fuse Status Monitoring

In industrial installations, identifying an operated fuse can take valuable time, particularly where numerous protection devices are installed within the same panel. The Mersen CMS273N provides a practical method of transmitting fuse status to a visible alarm or automated monitoring system.

Remote fuse indication can help reduce diagnostic time, improve planned maintenance and minimise unnecessary equipment downtime. When connected to an appropriate control circuit, the microswitch can signal that a compatible fuse device has operated so corrective action can be taken promptly.

Typical Applications

  • Industrial electrical control panels.
  • Power distribution switchboards.
  • Motor control centres.
  • Manufacturing and process machinery.
  • PLC-based fault monitoring systems.
  • Building services and infrastructure equipment.

Technical Specifications

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Phase Three Phase
Poles 3-pole + N
Fuse Size 27x60 mm
Voltage 800 V
Item number W210584
Catalogue No CMS273N
Description Fuse Holder Modulostar® 800VAC 800VDC Fuse size 27x60 3-Pole+N Faston Lugs IP20
EAN/UPC Code 3605340230215
Rated voltage AC UL 800 V
Rated voltage DC UL 800 V
Rated voltage AC IEC 800 V
Rated voltage DC IEC 800 V
Ampere Rating 140 A
RoHS Compliant Yes
AC or DC AC/DC
Fuse Size 27x60
Design Details triple pole + neutral conductor
Number of Poles 3-Pole+N
Torque Rating 3.5 Nm
Rated Impulse Withstand Voltage 8 kV
Rated Insulation Voltage 800 V
Max Power dissipation of Fuse Links Pn 11 W
Installation Mounting DIN rail acc. EN 60715
Product Width 160 mm
Product Length 93.5 mm
Product Height 149.4 mm
Sell Pack Quantity 1 EA
Sell Pack Weight 0.303 kg
Sell Pack Width 155 mm
Sell Pack Length 165 mm
Sell Pack Height 100 mm
Product group Fuse Holders
Conventional Free Air thermal Current With Fuse-Links Ith 140 A
Product Weight 0.303 kg
HS Code 85361090
Country of Manufacture Tunisia

Frequently Asked Questions

What is the Mersen CMS273N used for?

The CMS273N is used to provide an electrical status signal when a compatible Mersen fuse or fuse protection device operates.

Can the CMS273N provide remote fuse indication?

Yes. Its switched contact can be incorporated into a compatible alarm, indicator, PLC input or supervisory monitoring circuit.

Does the CMS273N protect the electrical circuit?

No. The CMS273N is a monitoring accessory. Circuit protection is provided by the compatible fuse or fuse-switch device with which it is installed.

Where is this microswitch typically installed?

It is typically fitted to compatible fuse equipment within control panels, switchboards, motor control centres or industrial machinery cabinets.

Is the CMS273N compatible with every Mersen fuse holder?

No. Compatibility depends on the fuse holder, fuse switch or protection device. The equipment documentation should be checked before installation.

Trusted Fuse Monitoring for Industrial Systems

Mersen fuse accessories are used in industrial electrical systems to support dependable circuit protection, efficient fault identification and effective maintenance procedures.