Mersen M25F12 25 A IEC fuse switch disconnector for FR10 cylindrical fuse links featuring a 1+2 pole configuration for industrial switching, isolation and circuit protection.
£137.42
The Mersen M25F12 is a compact 25 A IEC fuse switch disconnector designed for reliable switching, electrical isolation and overcurrent protection in low-voltage control circuits. Designed to accommodate FR10 cylindrical fuse links, it combines manual load switching with integrated fuse protection in a compact assembly for industrial and commercial electrical installations.
Featuring a 1+2 pole configuration and front-operated mechanism, the M25F12 is particularly suitable for compact control panels, machinery, distribution boards and OEM equipment. Its design allows dependable switching while protecting downstream equipment from overload and short-circuit faults through appropriately selected fuse links.
With a rated current of 25 A, the M25F12 offers a practical solution where space is limited but reliable circuit isolation and fuse protection remain essential. Its compact footprint makes it ideal for modern electrical assemblies requiring efficient use of panel space.
The Mersen M25F12 combines manual switching with replaceable cylindrical fuse protection, providing a dependable means of isolating electrical circuits while protecting connected equipment against overloads and short-circuit conditions. The compact design makes it particularly suitable for installations where panel space is at a premium.
By selecting the correct FR10 fuse links for the application, engineers can tailor the protection characteristics to suit motors, control circuits, transformers and other electrical equipment while maintaining safe manual isolation during servicing and maintenance.
| Current | 25 A |
|---|---|
| Manufacturer | Mersen |
| Model | M25F12 |
| Product type | IEC fuse switch disconnector |
| Rated current | 25 A |
| Rated operating voltage | Up to 690 V AC |
| Frequency | 50 / 60 Hz |
| Pole configuration | 1+2 |
| Fuse-link type | FR10 cylindrical fuse |
| Operation | Front operated |
| Mounting application | Electrical panel / switchboard mounting |
| Approximate weight | 0.70 kg |
| Applicable standard | IEC 60947-3 |
The M25F12 is used to switch, isolate and protect low-voltage electrical circuits in industrial control panels, machinery and commercial electrical installations.
The switch is designed for FR10 cylindrical fuse links, allowing the protection rating to be selected for the application.
The Mersen M25F12 has a rated current of 25 A.
The 1+2 configuration provides a specialised pole arrangement for applications requiring a combination of switched and fused poles within the same assembly.
Fuse links are generally selected separately so the current rating and protection characteristics can be matched to the connected equipment.
Mersen IEC fuse switch disconnectors are trusted by panel builders, OEM manufacturers and industrial electricians for dependable switching, reliable circuit protection and long service life in demanding low-voltage installations.
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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...