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MERSEN FUSE SPECIAL NH-KNIFE NH3 1000A Ni 33SZSM1
Mersen N1043844, catalogue number 33SZSM1, is an NH Size 3 solid link rated at 1000 A with nickel-plated copper current-carrying components for switching, isolation and circuit continuity in compatible NH equipment.
£54.37
Why Choose the Mersen N1043844 NH Solid Link?
The Mersen N1043844, catalogue number 33SZSM1, is a heavy-duty NH Size 3 solid link designed for switching, isolation and circuit continuity within compatible NH fuse bases and fuse-switch disconnectors. Unlike a conventional fuse link, this solid link contains no fusible element and is intended to provide a permanent conductive connection rather than overcurrent protection.
Part of the Mersen IEC Solid Links range, the N1043844 uses a robust copper current path with a special nickel-plated finish. Its low-resistance construction supports efficient current transmission with reduced power dissipation, making it suitable for demanding industrial switchgear and electrical distribution applications.
With an NH3 format and a rated current of 1000 A, the N1043844 can be used in compatible NH equipment where a safe, visible isolation point or non-fused connection is required. Its dimensions correspond to those of an NH fuse link, allowing straightforward installation and removal with an approved NH fuse handle.
Key Advantages
- Heavy-duty NH Size 3 solid link for industrial switchgear.
- 1000 A rated current for high-capacity electrical systems.
- Low-resistance copper construction helps minimise power losses.
- Special nickel-plated current-carrying components.
- Provides a safe and visible means of circuit isolation.
- Compatible with suitable NH fuse bases and fuse-switch disconnectors.
Key Features
- Mersen IEC Solid Links series.
- Catalogue number 33SZSM1.
- NH Size 3 construction.
- 1000 A rated current.
- Nickel-plated copper current-carrying components.
- Dimensions equivalent to a compatible NH fuse link.
- Designed for switching, isolation and circuit bridging.
- Suitable for operation with an approved NH fuse handle.
- Robust construction for industrial electrical installations.
- Contains no fusible element and provides no overcurrent protection.
Reliable Switching and Isolation for NH Systems
NH solid links can be fitted in place of fuse links where a permanent conductive path is required. When used with suitable NH fuse-switch disconnectors or fuse bases, they can provide a clear and visible means of switching or isolating part of an electrical distribution system.
The N1043844 does not interrupt overload or short-circuit currents and must therefore only be used where appropriate upstream or downstream protective devices are installed. Correct system design and coordination are essential to ensure that the connected conductors and equipment remain adequately protected.
Typical Applications
- Industrial switchboards and distribution panels.
- NH fuse-switch disconnectors.
- Electrical isolation points.
- High-current busbar and feeder connections.
- Industrial control and power distribution systems.
- Temporary or permanent circuit bridging arrangements.
Technical Specifications
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| Current | 1000 A | |
|---|---|---|
| Device Type | Accessory | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH3 | |
| Manufacturer | Mersen | |
| Series | IEC Solid Links | |
| Item number | N1043844 | |
| Catalogue number | 33SZSM1 | |
| Product type | NH solid link / isolation knife | |
| NH size | NH3 | |
| Rated current | 1000 A | |
| Current-carrying material | Copper | |
| Contact finish | Nickel plated | |
| Protection function | None | |
| Switching function | Circuit bridging and visible isolation | |
| Installation | Compatible NH fuse base or fuse-switch disconnector | |
| Handling | Approved NH fuse handle | |
| Form | NH knife-blade solid link |
Frequently Asked Questions
What is the Mersen N1043844 used for?
The N1043844 is used to provide a solid electrical connection, switching point or visible isolation point in compatible NH fuse bases and fuse-switch disconnectors.
Is the Mersen N1043844 a fuse?
No. It is an NH solid link with no fusible element, so it does not provide overload or short-circuit protection.
What is the rated current of the N1043844?
The Mersen N1043844 has a rated current of 1000 A.
What NH size is this solid link?
The N1043844 is manufactured in the NH Size 3 format.
What protection is required when using this solid link?
Suitable upstream or downstream overcurrent protection must be provided because the solid link itself cannot interrupt overload or short-circuit currents.
Trusted by Electrical Professionals Worldwide
Mersen NH solid links are used by panel builders, electrical engineers and industrial maintenance professionals to provide reliable high-current connections and visible isolation within compatible NH distribution equipment.
