Mersen USFM10I UltraSafe three-pole midget fuse module rated at 30 A and 600 V AC/DC, featuring LED open-fuse indication, 100 kA SCCR, IP20 protection and DIN rail mounting.
£102.74
The Mersen USFM10I is a compact three-pole UltraSafe™ fuse module with LED indication, designed for dependable overcurrent protection in industrial motor control, machinery and automation systems. It accepts midget cartridge fuses rated up to 30 A, providing an efficient solution for protecting three-phase electrical circuits within control panels.
Part of the Mersen UltraSafe USFM fuse module series, the USFM10I features a compact design suitable for use alongside 45 mm-wide IEC contactors and overload relays. Its integrated LED indication system provides clear visual identification of an open fuse, helping maintenance teams locate electrical faults quickly and reduce equipment downtime.
Rated for 600 V AC and 600 V DC, the USFM10I combines IP20 finger-safe construction, clip-in fuse installation and DIN rail mounting. Additional features including fuse extraction handles, padlocking capability and tool-free DIN rail removal make it suitable for demanding industrial control and motor protection applications.
The Mersen USFM10I provides secure mounting and electrical connection for three midget fuses used to protect industrial conductors, contactors, overload relays and connected machinery. Its compact format enables it to coordinate neatly with commonly used IEC motor control components, helping panel builders create organised and space-efficient assemblies.
The integrated LED indication system allows maintenance personnel to identify an open fuse visually without checking each fuse individually. Combined with finger-safe protection, easy-operating fuse extraction handles and tool-free DIN rail removal, the USFM10I supports faster installation, safer servicing and reduced maintenance time.
| Phase | Three Phase |
|---|---|
| Manufacturer | Mersen |
| Series | UltraSafe™ USFM |
| Model | USFM10I |
| Product type | Three-pole midget fuse module with LED indication |
| Fuse class | Midget |
| Maximum fuse rating | 30 A |
| Rated AC voltage | 600 V AC |
| Rated DC voltage | 600 V DC |
| Number of poles | 3 |
| Indication system | LED |
| Short-circuit current rating | 100 kA |
| Fuse installation method | Clip-in |
| Wiring range | Copper conductors, 10 to 16 AWG |
| Terminal torque | 1.469 N m |
| Mounting type | DIN rail |
| Protection rating | IP20 |
| Dimensions (H × W × D) | 89.9 × 45 × 65.5 mm |
| Product weight | 0.1814 kg |
| EAN / UPC | 782001356903 |
| RoHS compliant | Yes |
The USFM10I holds three midget cartridge fuses for overcurrent and short-circuit protection in three-phase motor control, machinery and industrial automation circuits.
The module is designed for midget fuses rated up to 30 A.
The integrated LED indication system provides visual notification when a fuse has opened, helping maintenance personnel identify the affected circuit quickly.
The USFM10I is rated for electrical systems up to 600 V AC and 600 V DC.
The module mounts onto a standard DIN rail and includes a tool-free removal system for efficient installation and maintenance.
Mersen UltraSafe™ fuse modules are widely selected by machine builders, panel manufacturers and industrial maintenance teams for compact design, dependable circuit protection and simplified fault identification.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
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...