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MERSEN FUSE KIT External CT 400A NH1-3 1P MZ1SW400
High precision single-pole current transformer with 400/5A ratio and Class 1 accuracy, compatible with NH1-3 switchgear.
Why Choose the Mersen N1024570 External Current Transformer Kit?
The Mersen N1024570 is a high accuracy external current transformer kit designed for precise current measurement in NH fuse switch disconnectors. As part of Mersen's trusted measurement and monitoring accessories range, it provides dependable current transformation for industrial power distribution, energy monitoring and electrical protection systems.
Designed for installation on the rear of compatible NH1 to NH3 fuse switch disconnectors, the N1024570 delivers accurate 400/5 A current transformation with Class 1 accuracy. The kit includes a current transformer and distance tubes for level adjustment, ensuring straightforward installation and reliable long-term performance in demanding industrial environments.
Suitable for single pole measurement, this external current transformer enables accurate current monitoring for switchboards, motor control centres and energy management systems while maintaining compatibility with Mersen NH fuse switch disconnectors.
Key Advantages
- Provides accurate 400/5 A current measurement.
- Class 1 accuracy for reliable monitoring applications.
- Designed for NH1 to NH3 fuse switch disconnectors.
- Simple installation using the supplied distance tubes.
- Ideal for industrial metering, monitoring and protection systems.
- RoHS compliant for environmentally responsible installation.
Key Features
- Mersen MZ1SW400 external current transformer kit.
- Item number: N1024570.
- 400/5 A transformation ratio.
- Class 1 measurement accuracy.
- Designed for single pole measurement.
- Compatible with NH1, NH2 and NH3 fuse switch disconnectors.
- Includes one current transformer and three distance tubes.
- Compact industrial design for rear mounting.
Reliable Current Measurement for Industrial Power Systems
External current transformers allow electrical current to be measured safely without direct connection to the primary conductor. The Mersen N1024570 provides accurate current transformation for metering, monitoring and protection equipment used within industrial switchgear and power distribution systems.
Its robust construction and Class 1 accuracy make it suitable for applications where dependable electrical measurements are essential for energy management, system monitoring and protective relay operation.
Typical Applications
- Industrial switchboards.
- Electrical power distribution systems.
- Energy monitoring installations.
- Motor control centres.
- NH fuse switch disconnectors.
- Industrial automation and protection systems.
Technical Specifications
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| Current | 400 A | |
|---|---|---|
| Phase | Single Phase | |
| Poles | 1-pole | |
| Fuse Type | NH (DIN) | |
| Fuse Size | NH1 | |
| Item number | N1024570 | |
| Catalogue No | MZ1SW400 | |
| Description | Kit External Current transformer 400/5A NH1-3 1P class 1 | |
| EAN/UPC Code | 4027597024048 | |
| RoHS Compliant | Yes | |
| Design Details | current transformer up to 400/5A for single pole measurement, class 1, set = 1 piece current transformer + 3 pieces distance tubes for level adjustment, 1 piece installed in the current transformer, 2 pieces additionally packed | |
| Number of Poles | 1-pole | |
| Product Length | 40 mm | |
| Sell Pack Quantity | 1 EA | |
| Sell Pack Weight | 0.826 kg | |
| Sell Pack Width | 160 mm | |
| Sell Pack Length | 40 mm | |
| Sell Pack Height | 100 mm | |
| Product group | Measurement and monitoring | |
| Product Weight | 0.001 kg | |
| HS Code | 85363090 | |
| Country of Manufacture | Hungary |
Frequently Asked Questions
What is the Mersen N1024570 used for?
The N1024570 is an external current transformer kit used for accurate 400/5 A current measurement in compatible NH fuse switch disconnectors.
What current ratio does this transformer provide?
It provides a 400/5 A transformation ratio for industrial metering and monitoring applications.
What is included in the kit?
The kit contains one external current transformer together with three distance tubes for level adjustment during installation.
Which switch disconnectors is it compatible with?
It is designed for installation on compatible NH1, NH2 and NH3 fuse switch disconnectors.
What accuracy class does the transformer offer?
The transformer is manufactured to Class 1 accuracy, making it suitable for reliable industrial current measurement.
Trusted for Industrial Measurement and Protection
Mersen current transformers are widely used by electrical engineers, panel builders and industrial maintenance professionals for accurate monitoring, dependable performance and seamless integration into modern power distribution systems.
