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MERSEN FUSE US223MI US223MI
Mersen V331172 US223MI UltraSafe three-pole fuse holder for 22 x 58 mm cylindrical fuse links, rated at 125 A with visual indication, microswitch monitoring, DIN rail mounting and IP20 protection.
£86.48
Why Choose the Mersen V331172 US223MI UltraSafe™ Fuse Holder?
The Mersen V331172, also identified by catalogue number US223MI, is a robust 3-pole UltraSafe™ cylindrical fuse holder designed for reliable overcurrent protection in industrial control panels, machinery and power distribution systems. It accepts 22 × 58 mm cylindrical fuse links and combines high electrical ratings with visual and remote fuse-status indication.
Rated at 125 A, the V331172 supports operating voltages up to 800 V AC and 1000 V DC under UL ratings, with IEC ratings of 690 V AC and 690 V DC. Its three-pole configuration makes it suitable for coordinated protection of three-phase circuits in demanding industrial installations.
The integrated visual indicator and microswitch system helps maintenance engineers identify operated fuses and transmit remote status signals to control or alarm equipment. Its pressure-plate terminals, DIN rail mounting and IP20 finger-safe construction support safe installation, dependable wiring and efficient servicing.
Key Advantages
- Designed for 22 × 58 mm cylindrical fuse links.
- 3-pole configuration for three-phase electrical systems.
- High 125 A maximum fuse rating.
- Supports up to 800 V AC and 1000 V DC under UL ratings.
- Integrated visual indication and microswitch for local and remote monitoring.
- IP20 finger-safe design improves operator protection.
- DIN rail mounting simplifies industrial panel installation.
Key Features
- Mersen UltraSafe™ US22 series.
- Three-pole modular fuse holder.
- Compatible with 22 × 58 mm fuse links.
- 125 A rated current.
- 800 V AC / 1000 V DC UL voltage ratings.
- 690 V AC / 690 V DC IEC voltage ratings.
- Integrated visual fuse-status indicator.
- Integrated microswitch for remote indication.
- Pressure-plate terminal design.
- IP20 finger-safe polyamide housing.
High-Voltage Protection with Remote Fuse Monitoring
The Mersen V331172 provides a secure mounting and connection point for three 22 × 58 mm cylindrical fuse links. When an overload or short circuit occurs, the installed fuse interrupts the affected pole according to its operating characteristics, helping protect cables, machinery and power distribution equipment.
Its combined visual indicator and microswitch system allows maintenance personnel to identify fuse operation locally while also sending a remote status signal to a PLC, alarm circuit or monitoring system. This can reduce fault-finding time and improve equipment availability in automated industrial installations.
Typical Applications
- Industrial control and distribution panels.
- Three-phase machinery and automation systems.
- Motor control centres.
- High-voltage AC and DC distribution circuits.
- Renewable energy and energy storage systems.
- Power conversion equipment.
- Transformer and feeder protection.
- OEM electrical assemblies.
Technical Specifications
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| Fuse Indication | Microswitch, Visual indicator | |
|---|---|---|
| Phase | Three Phase | |
| Poles | 3-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | Cylindrical | |
| Fuse Size | 22x58 mm | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | UltraSafe™ US22 | |
| Item number | V331172 | |
| Catalogue number | US223MI | |
| EAN / UPC | 0782001311421 | |
| Product type | Cylindrical fuse holder with visual indicator and microswitch | |
| Compatible fuse size | 22 × 58 mm | |
| Number of poles | 3 | |
| Maximum fuse rating | 125 A | |
| Rated voltage AC UL | 800 V AC | |
| Rated voltage DC UL | 1000 V DC | |
| Rated voltage AC IEC | 690 V AC | |
| Rated voltage DC IEC | 690 V DC | |
| Frequency | 50 / 60 Hz | |
| Short-circuit current rating | 100 kA | |
| Rated insulation voltage | 750 V | |
| Rated impulse withstand voltage | 8 kV | |
| Indication system | Visual indicator and microswitch | |
| Terminal type | Pressure plate / clip | |
| Terminal material | Tin-plated copper | |
| Wiring range | 1/0 to 14 AWG | |
| Terminal torque | approx. 4 N m | |
| Fuse installation | Clip-in | |
| Mounting type | DIN rail to EN 60715 | |
| Protection rating | IP20 | |
| Housing material | Polyamide | |
| Dimensions (H × W × D) | approx. 127.5 × 104.9 × 76.5 mm | |
| Product weight | approx. 0.675 kg | |
| Compliance | RoHS compliant | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen V331172 used for?
The V331172 is used to mount and connect three 22 × 58 mm cylindrical fuse links while providing local and remote fuse-status indication in industrial AC and DC systems.
What is the catalogue number for the V331172?
The Mersen catalogue number is US223MI.
What fuse size does the V331172 accept?
It is designed for 22 × 58 mm cylindrical fuse links rated up to 125 A.
What are the voltage ratings?
The fuse holder is rated up to 800 V AC and 1000 V DC under UL requirements, with IEC ratings of 690 V AC and 690 V DC.
What indication features are included?
The V331172 includes a visual fuse-status indicator and a microswitch that can provide remote signalling to control, monitoring or alarm equipment.
Trusted by Industrial Panel Builders Worldwide
Mersen UltraSafe™ fuse holders are widely specified by electrical panel builders, OEM manufacturers and industrial engineers for high-performance circuit protection, dependable status monitoring and enhanced operator safety.
