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MERSEN FUSE US222M US222M
Mersen M331165 UltraSafe US222M two-pole modular fuse holder for 22×58 mm cylindrical fuse links with integrated dual microswitches, IP20 protection and ratings up to 800 V AC and 1000 V DC.
£46.91
Why Choose the Mersen M331165 UltraSafe™ US222M Fuse Holder?
The Mersen M331165, catalogue number US222M, is a premium UltraSafe™ modular fuse holder designed for 22×58 mm cylindrical fuse links. Featuring a two-pole configuration with integrated dual microswitches, it provides reliable circuit protection while enabling remote fuse-status monitoring for industrial automation and electrical distribution systems.
Manufactured as part of the trusted Mersen UltraSafe™ US22 series, the US222M combines robust thermoplastic construction with IP20 finger-safe protection, ensuring safe installation and maintenance. The integrated microswitches allow connection to PLCs, alarms or supervisory systems, making fault detection faster and reducing equipment downtime.
Suitable for industrial AC and DC installations, the M331165 supports systems up to 800 V AC (UL), 690 V AC (IEC) and 1,000 V DC, with a maximum current rating of 125 A. Its DIN rail mounting design makes it ideal for modern control panels, OEM machinery and power distribution equipment.
Key Advantages
- Designed for 22×58 mm cylindrical fuse links.
- Two-pole modular fuse holder.
- Integrated dual microswitches for remote status monitoring.
- Supports systems up to 800 V AC / 1,000 V DC.
- 125 A maximum current rating.
- Finger-safe IP20 protection.
- Pressure plate terminals provide secure conductor retention.
- DIN rail mounting for fast installation.
Key Features
- Mersen UltraSafe™ US22 series.
- Catalogue number US222M.
- Reference number M331165.
- Accepts 22×58 mm cylindrical fuse links.
- Two-pole configuration.
- Integrated 2 microswitches.
- 125 A maximum current.
- 800 V AC UL / 690 V AC IEC / 1,000 V DC ratings.
- Pressure plate terminals.
- IP20 finger-safe enclosure.
- DIN rail mounting.
- High-strength thermoplastic construction.
Reliable Protection with Remote Monitoring
The Mersen M331165 combines dependable fuse protection with integrated signalling capabilities, allowing electrical engineers to monitor fuse operation remotely. The dual microswitch arrangement can be connected to PLCs or monitoring systems, helping maintenance teams identify faults quickly and minimise production downtime.
Its UltraSafe™ finger-safe construction, compact modular format and high electrical ratings make it well suited to industrial machinery, renewable energy systems, motor control centres and modern electrical distribution panels.
Typical Applications
- Industrial control panels.
- OEM machinery.
- Motor control centres.
- Power distribution equipment.
- Industrial automation systems.
- Renewable energy installations.
- PLC-controlled electrical systems.
Technical Specifications
Tick the specs you need, then view products that match.
| Fuse Indication | Microswitch | |
|---|---|---|
| Poles | 2-pole | |
| Device Type | Fuse base / holder | |
| Fuse Type | Cylindrical | |
| Fuse Size | 22x58 mm | |
| Voltage | 800 V | |
| Manufacturer | Mersen | |
| Series | UltraSafe™ US22 | |
| Model | US222M | |
| Manufacturer part number | M331165 | |
| Product type | Modular cylindrical fuse holder | |
| Fuse size | 22 × 58 mm | |
| Number of poles | 2 | |
| Maximum current | 125 A | |
| Rated voltage (UL AC) | 800 V AC | |
| Rated voltage (IEC AC) | 690 V AC | |
| Rated voltage (DC) | 1,000 V DC | |
| Frequency | 50 / 60 Hz | |
| Auxiliary contacts | 2 integrated microswitches | |
| Terminal type | Pressure plate | |
| Protection rating | IP20 | |
| Mounting type | DIN rail mounting | |
| HS Code | 85361090 | |
| Country of Manufacture | Tunisia |
Frequently Asked Questions
What is the Mersen M331165 used for?
The M331165 is a two-pole modular fuse holder for 22×58 mm cylindrical fuse links used to protect industrial AC and DC electrical circuits.
Which fuse size is compatible with this holder?
It is designed specifically for 22×58 mm cylindrical fuse links.
Does the M331165 include auxiliary contacts?
Yes. It incorporates two integrated microswitches for remote fuse-status monitoring and signalling.
What are the electrical ratings?
The holder supports systems up to 800 V AC (UL), 690 V AC (IEC), 1,000 V DC and a maximum current of 125 A.
Where is the M331165 typically installed?
It is designed for DIN rail mounting inside industrial control panels, switchboards, machinery and electrical distribution equipment.
Trusted by Electrical Professionals Worldwide
Mersen UltraSafe™ fuse holders are trusted by OEMs, panel builders and industrial engineers for delivering dependable circuit protection, finger-safe operation and reliable remote monitoring in demanding industrial environments.
