Mersen Q331168 UltraSafe US222M2I two-pole DIN rail fuse holder for 22 x 58 mm cylindrical fuse links with visual indication, two microswitches and IP20 finger-safe protection.
£133.02
The Mersen Q331168, catalogue number US222M2I, is a premium two-pole modular fuse holder designed for 22 × 58 mm cylindrical fuse links. Part of the advanced Mersen UltraSafe™ US22 series, it delivers dependable overcurrent protection while combining both visual blown-fuse indication and dual auxiliary microswitches for comprehensive local and remote fuse monitoring.
Designed for industrial control panels, machinery and power distribution equipment, the US222M2I features a finger-safe IP20 enclosure, including during fuse replacement. The integrated indication system enables maintenance personnel and PLCs to identify blown fuses rapidly, helping minimise downtime and improve system availability.
Rated at 125 A, the Q331168 supports applications up to 800 V AC and 1000 V DC (UL) and 690 V AC (IEC). Its pressure-plate terminals and DIN rail mounting provide secure installation and reliable long-term performance in demanding industrial environments.
The Mersen Q331168 provides secure installation for 22 × 58 mm cylindrical fuse links while protecting industrial electrical circuits against overloads and short circuits. Its finger-safe construction supports safer maintenance without compromising accessibility.
The combination of a visual blown-fuse indicator and two auxiliary microswitches enables both local inspection and remote status monitoring through PLCs or supervisory control systems. This makes the US222M2I particularly suitable for critical industrial applications where rapid fault detection helps maximise equipment uptime.
| Manufacturer | Mersen |
|---|---|
| Series | UltraSafe™ US22 |
| Catalogue number | US222M2I |
| Manufacturer part number | Q331168 |
| Product type | Modular cylindrical fuse holder |
| Fuse size | 22 × 58 mm |
| Number of poles | 2 |
| Rated current | 125 A |
| Rated voltage AC (UL) | 800 V |
| Rated voltage DC (UL) | 1000 V |
| Rated voltage AC (IEC) | 690 V |
| Frequency | 50 / 60 Hz |
| Protection rating | IP20 |
| Indicator | Visual blown-fuse indicator |
| Auxiliary contacts | Two integrated microswitches |
| Terminal type | Pressure-plate connection |
| Mounting type | DIN rail mounting |
| Approximate weight | 0.47 kg |
| EAN | 0782001311315 |
| HS Code | 85361090 |
| Country of Manufacture | Tunisia |
The Q331168 is a two-pole modular fuse holder designed to protect industrial electrical circuits using 22 × 58 mm cylindrical fuse links.
It is designed specifically for 22 × 58 mm cylindrical fuse links.
Yes. It incorporates a visual blown-fuse indicator together with two integrated auxiliary microswitches for remote fuse monitoring.
The fuse holder has a 125 A rating and supports up to 800 V AC and 1000 V DC (UL) or 690 V AC (IEC).
The unit mounts directly onto a standard DIN rail using pressure-plate terminals for secure industrial installation.
Mersen UltraSafe™ fuse holders are trusted by panel builders, OEM manufacturers and industrial engineers for dependable overcurrent protection, enhanced operator safety and advanced fuse monitoring capabilities.
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LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...