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MERSEN FUSE BASE MOD.CMS22 C/MIC+IND 3P+N CMS223NMI
Mersen CMS223NMI Modulostar three-pole plus neutral fuse holder for 22 x 58 mm cylindrical fuse links, rated at 125 A and 690 V AC or DC, with visual indication, microswitch monitoring, DIN rail mounting and IP20 protection.
£95.52
Why Choose the Mersen CMS223NMI Modulostar® Fuse Holder?
The Mersen CMS223NMI is a high-performance 3-pole plus neutral cylindrical fuse holder designed for dependable circuit protection, phase and neutral isolation, and fuse-status monitoring in industrial electrical systems. As part of the established Mersen Modulostar® CMS22 series, it accepts 22 × 58 mm cylindrical fuse links and combines visual indication with microswitch-based remote signalling.
Rated at 125 A with operational voltages up to 690 V AC and 690 V DC, the CMS223NMI is suitable for demanding three-phase AC and DC applications. Its three fused poles protect the phase conductors, while the integrated neutral conductor supports coordinated isolation during servicing and maintenance.
The built-in visual indicator and microswitch allow an operated fuse to be identified locally and its status transmitted remotely to a PLC, alarm circuit or monitoring system. Combined with IP20 finger-safe protection, DIN rail mounting and robust industrial construction, the CMS223NMI is ideal for panel builders, OEM manufacturers and maintenance engineers.
Key Advantages
- Designed for 22 × 58 mm cylindrical fuse links.
- 3-pole plus neutral configuration for three-phase systems.
- High 125 A current rating for demanding circuits.
- Suitable for 690 V AC and 690 V DC applications.
- Integrated visual fuse indicator supports local fault identification.
- Built-in microswitch enables remote status signalling.
- IP20 finger-safe construction improves operator protection.
Key Features
- Mersen Modulostar® CMS22 series.
- Three fused poles plus neutral conductor.
- Compatible with 22 × 58 mm cylindrical fuse links.
- 125 A rated current.
- 690 V AC / 690 V DC IEC voltage rating.
- Integrated visual blown fuse indication.
- Integrated microswitch for remote monitoring.
- 100 kA short-circuit current rating.
- IP20 finger-safe protection, including during fuse replacement.
- DIN rail mounting to EN 60715.
Three-Phase Protection with Local and Remote Monitoring
The Mersen CMS223NMI provides secure mounting and connection for three 22 × 58 mm cylindrical fuse links while incorporating a neutral conductor within the same modular assembly. When an overload or short circuit occurs, the installed fuse interrupts the affected phase according to its operating characteristics, helping protect cables, machinery and electrical equipment.
Its combined visual indication and microswitch system allows maintenance personnel to identify fuse operation directly at the panel while also sending a remote signal to connected monitoring equipment. This helps accelerate fault diagnosis, reduce machine downtime and improve maintenance efficiency in automated installations.
Typical Applications
- Three-phase industrial control panels.
- Machinery and automation systems.
- Motor control centres.
- Power distribution equipment.
- Transformer and feeder protection.
- Renewable energy and DC installations.
- Industrial monitoring and alarm systems.
- OEM electrical assemblies.
Technical Specifications
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| Fuse Indication | Microswitch, Visual indicator | |
|---|---|---|
| Phase | Three Phase | |
| Device Type | Fuse base / holder | |
| Fuse Type | Cylindrical | |
| Fuse Size | 22x58 mm | |
| Current | 125 A | |
| Manufacturer | Mersen | |
| Series | Modulostar® CMS22 | |
| Model | CMS223NMI | |
| Item number | W331104 | |
| EAN / UPC | 8430399000695 | |
| Product type | Cylindrical fuse holder with visual indicator and microswitch | |
| Compatible fuse size | 22 × 58 mm | |
| Configuration | 3 poles + neutral | |
| Rated current | 125 A | |
| Rated operational voltage AC | 690 V AC | |
| Rated operational voltage DC | 690 V DC | |
| AC or DC compatibility | AC / DC | |
| Short-circuit current rating | 100 kA | |
| Rated insulation voltage | 690 V | |
| Rated impulse withstand voltage | 8 kV | |
| Indication system | Visual indicator and microswitch | |
| Terminal torque | 4 N m | |
| Mounting type | DIN rail to EN 60715 | |
| Protection rating | IP20 | |
| Product width | 140 mm | |
| Product length | 76.5 mm | |
| Product height | 127.5 mm | |
| Product weight | approx. 0.93 kg | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen CMS223NMI used for?
The CMS223NMI is used to mount and connect three 22 × 58 mm cylindrical fuse links while providing a neutral conductor, visual fuse indication and remote microswitch signalling.
What does the 3-pole plus neutral configuration mean?
The holder contains three fused phase poles and one neutral conductor section, enabling coordinated isolation of the three phases and neutral during maintenance.
What fuse size does the CMS223NMI accept?
The fuse holder is designed for 22 × 58 mm cylindrical fuse links rated within the holder's maximum electrical specifications.
What indication features are included?
The CMS223NMI includes a visual fuse indicator and an integrated microswitch, providing both local fault identification and remote status signalling.
What are the current and voltage ratings?
The Mersen CMS223NMI is rated at 125 A and supports operating voltages up to 690 V AC and 690 V DC.
Trusted by Industrial Panel Builders Worldwide
Mersen Modulostar® fuse holders are widely specified by electrical panel builders, OEM manufacturers and industrial engineers for dependable circuit protection, effective fuse-status monitoring and enhanced operator safety.
