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MERSEN FUSE HANDLE RED45MM IP65 NEMA 3R HR45
Mersen HR45 red 45 mm external rotary pistol handle, reference Q1043915, with IP65 and NEMA 3R ratings for selected 20 to 100 A Mersen disconnect switches.
£24.79
Why Choose the Mersen HR45 External Disconnect Switch Handle?
The Mersen HR45 is a compact external rotary pistol handle designed for operating compatible Mersen low-voltage disconnect switches from the front of an electrical enclosure. Its highly visible red finish and compact 45 mm size provide a clear, practical interface for machinery isolation, control panels and industrial power distribution equipment.
Designed for use with selected Mersen disconnect switches rated from approximately 20 to 100 A, the HR45 connects to the switch through the appropriate operating shaft and mounting arrangement. This enables the disconnect switch to be operated while the enclosure door remains closed, supporting controlled and convenient electrical isolation.
The HR45 provides an IP65 and NEMA 3R rated installation when correctly fitted to a suitable enclosure. Its compact pistol-style design, high-visibility colouring and robust construction make it suitable for new panel builds, machinery installations and replacement applications.
Key Advantages
- External front operation allows switching without opening the enclosure.
- Compact 45 mm pistol-style handle for space-conscious panel designs.
- Highly visible red finish clearly identifies the isolation control.
- IP65 and NEMA 3R rated when correctly installed.
- Suitable for selected Mersen disconnect switches rated from 20 to 100 A.
- Genuine Mersen accessory for dependable mechanical compatibility.
Key Features
- Mersen low-voltage disconnect switch accessory.
- External rotary pistol handle.
- 45 mm nominal handle size.
- Red finish for clear visual identification.
- IP65 environmental protection rating.
- NEMA 3R enclosure rating.
- Compatible with selected 20–100 A disconnect switches.
- Designed for operation through a compatible shaft assembly.
- Mersen product reference Q1043915.
Reliable External Operation of Disconnect Switches
Disconnect switches provide a controlled means of isolating machinery and electrical equipment from the incoming power supply. An external operating handle allows the connected switch to be moved between its operating positions while the electrical enclosure remains closed.
The compact design of the Mersen HR45 makes it particularly suitable for smaller control panels and machinery enclosures. When correctly matched with the required disconnect switch, shaft and mounting components, it provides clear and dependable manual isolation control.
Typical Applications
- Industrial machinery isolation.
- Electrical control panels.
- Motor control equipment.
- Automation cabinets.
- Small power distribution panels.
- Manufacturing and processing machinery.
- OEM machinery and panel assemblies.
Technical Specifications
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| IP Rating | IP65 | |
|---|---|---|
| Device Type | Accessory | |
| Manufacturer | Mersen | |
| Model | HR45 | |
| Manufacturer reference | Q1043915 | |
| Product type | Disconnect switch operating handle | |
| Handle style | Rotary pistol handle | |
| Operating position | External front operation | |
| Handle colour | Red | |
| Nominal handle size | 45 mm | |
| Compatible switch rating | Approximately 20–100 A | |
| Protection rating | IP65 | |
| NEMA rating | NEMA 3R | |
| Operating method | Manual rotary operation | |
| Application | Low-voltage disconnect switch operation | |
| Mounting arrangement | Enclosure mounting with a compatible operating shaft | |
| Accessory supplied | External operating handle | |
| Operating shaft included | No | |
| Disconnect switch included | No |
Frequently Asked Questions
What is the Mersen HR45 used for?
The Mersen HR45 is an external red rotary handle used to operate a compatible Mersen low-voltage disconnect switch from outside an electrical enclosure.
Is the HR45 a complete disconnect switch?
No. The HR45 is an external operating handle accessory. The compatible disconnect switch, operating shaft and required mounting components must be selected separately.
Which disconnect switches are compatible with the Mersen HR45?
The HR45 is intended for selected Mersen disconnect switches rated from approximately 20 to 100 A. The exact switch and shaft references should be checked before installation.
What protection ratings does the Mersen HR45 have?
The HR45 is specified with IP65 and NEMA 3R ratings when correctly installed as part of a suitable enclosure and disconnect switch assembly.
Does the Mersen HR45 include an operating shaft?
No. The HR45 is supplied as an operating handle. A compatible shaft and disconnect switch must normally be ordered separately.
Trusted by Electrical Panel Builders
Mersen disconnect switch handles are used by electrical engineers, machinery manufacturers and panel builders to provide dependable external switching and isolation within industrial electrical systems.
