Mersen HDF400 direct-mount operating handle, reference Q1043396, designed for compatible Mersen SF 200 A fusible disconnect switches.
£116.80
The Mersen HDF400 is a robust direct-mount operating handle designed for use with compatible Mersen SF 200 A fusible disconnect switches. It provides a practical manual interface for operating the connected switch in industrial control panels, machinery, switchboards and electrical power distribution equipment.
Manufactured as part of Mersen’s low-voltage disconnect switch accessory range, the HDF400 attaches directly to the compatible switch operating mechanism. This direct-front arrangement creates a compact solution for installations where local switch operation is required without an extended shaft or separate enclosure-mounted handle.
The HDF400 is suitable for new switchgear assemblies, industrial machinery, OEM panel-building projects and replacement applications. Its genuine Mersen construction helps provide dependable mechanical compatibility when correctly matched with the specified SF-series fusible disconnect switch.
Fusible disconnect switches combine manual electrical isolation with fuse-based overcurrent protection. A correctly selected operating handle provides a controlled and repeatable means of moving the switch between its operating positions while keeping the operator separated from the internal switching components.
The direct-mount configuration of the Mersen HDF400 is intended for applications where the compatible disconnect switch is operated locally from the front of its mechanism. When correctly matched with a Mersen SF 200 A switch, it provides dependable manual operation for industrial electrical systems.
| Current | 200 A |
|---|---|
| Manufacturer | Mersen |
| Model | HDF400 |
| Manufacturer reference | Q1043396 |
| Product type | Disconnect switch operating handle |
| Handle type | Direct mount |
| Operating position | Direct front operation |
| Compatible switch series | Mersen SF |
| Compatible switch rating | 200 A |
| Compatible switch type | Fusible disconnect switch |
| Operating method | Manual |
| Mounting arrangement | Direct mounting to the compatible switch mechanism |
| Application | Low-voltage switching and electrical isolation |
| Accessory supplied | Operating handle |
| Disconnect switch included | No |
The Mersen HDF400 is a direct-mount operating handle used to manually operate a compatible Mersen SF 200 A fusible disconnect switch.
No. The HDF400 is an operating handle accessory. The compatible fusible disconnect switch and required fuses must be selected separately.
The handle is designed for compatible Mersen SF-series fusible disconnect switches rated at 200 A. The exact switch configuration should be checked before installation.
The HDF400 mounts directly onto the compatible switch mechanism, so an extended door-coupling shaft is not normally required.
It is commonly used in industrial control panels, switchboards, motor control centres, machinery assemblies and electrical distribution equipment.
Mersen disconnect switch accessories are used by electrical engineers, machinery manufacturers and panel builders to support dependable switching and isolation in industrial power systems.
● 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...