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MERSEN FUSE Amperemeter unit1000A NH1-3 1P 1.000.105
Why Choose the MERSEN FUSE Amperemeter unit1000A NH1-3 1P 1.000.105?
£139.36
Why Choose the Mersen J1023278 MULTIVERT® Fuse Switch Disconnector?
The Mersen J1023278 is a heavy-duty NH fuse switch disconnector designed for safe switching, dependable isolation and overcurrent protection in industrial low voltage power distribution systems. Part of the Mersen MULTIVERT® 630A series, it is engineered for installation on 185 mm busbar systems, making it ideal for switchboards, motor control centres and OEM electrical assemblies.
Manufactured for demanding industrial environments, the J1023278 combines a compact vertical design with robust construction to maximise cabinet space while maintaining high electrical performance. The modular MULTIVERT® platform enables rapid installation, simplified maintenance and reliable long-term operation.
Rated at 630 A with a 690 V AC operating voltage, this NH Size 3 fuse switch disconnector is suitable for high-power distribution applications where safety, reliability and ease of maintenance are essential.
Key Advantages
- Designed for industrial low voltage power distribution.
- 630 A rated current for demanding applications.
- 690 V AC rated operating voltage.
- Compatible with 185 mm busbar systems.
- Suitable for NH Size 3 fuse-links.
- Compact modular design simplifies installation and servicing.
- Reliable switching, isolation and circuit protection.
Key Features
- Mersen MULTIVERT® 630A series.
- Model: J1023278.
- 630 A rated current.
- 690 V AC rated voltage.
- 50 / 60 Hz operation.
- NH Size 3 fuse compatibility.
- Three-pole switching configuration.
- 185 mm busbar mounting.
- Industrial modular construction.
- Space-saving vertical design.
Reliable Protection for Industrial Distribution Systems
The Mersen J1023278 provides safe switching and dependable isolation for industrial electrical installations while protecting downstream equipment from overload and short-circuit conditions through the use of NH fuse-links. Its compact MULTIVERT® construction helps maximise usable switchboard space without compromising safety or performance.
Designed for modern industrial power distribution systems, the J1023278 integrates easily into new installations and retrofit projects, delivering long service life and dependable operation in demanding environments.
Typical Applications
- Industrial switchboards.
- Main power distribution panels.
- Motor control centres.
- OEM electrical equipment.
- Manufacturing facilities.
- Commercial and industrial infrastructure.
Technical Specifications
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| Mounting Type | Busbar system 185 mm | |
|---|---|---|
| Current | 630 A | |
| Phase | Single Phase | |
| Poles | 3-pole | |
| Device Type | Fuse switch disconnector | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Voltage | 690 V | |
| Manufacturer | Mersen | |
| Series | MULTIVERT® 630A | |
| Model | J1023278 | |
| Product type | NH fuse switch disconnector | |
| Rated current | 630 A | |
| Rated voltage | 690 V AC | |
| Rated insulation voltage | 1000 V | |
| Frequency | 50 / 60 Hz | |
| Fuse size | NH Size 3 | |
| Number of poles | 3 | |
| Mounting type | 185 mm busbar system | |
| Short-circuit current rating | Up to 80 kA | |
| Installation | Vertical |
Frequently Asked Questions
What is the Mersen J1023278 used for?
It is used for switching, isolation and overcurrent protection within industrial low voltage power distribution systems.
What is the rated current?
The J1023278 has a rated current of 630 A.
What operating voltage is supported?
This fuse switch disconnector is rated for operation up to 690 V AC.
Which fuse-links are compatible?
The unit is designed for NH Size 3 fuse-links manufactured to applicable IEC standards.
Where is the J1023278 typically installed?
It is installed on 185 mm busbar systems within industrial switchboards, distribution boards and motor control centres.
Trusted by Electrical Professionals Worldwide
Mersen MULTIVERT® fuse switch disconnectors are trusted by panel builders and electrical engineers for delivering dependable circuit protection, safe isolation and reliable performance in industrial power distribution systems.
