Description
250-600/5A 42mm Current Transformer | Class 1.0 Metering CT
The 250-600/5A 42mm Class 1.0 Metering Current Transformer (CT) from MVG Power Solutions is designed for reliable electrical current measurement, metering and monitoring applications. This encapsulated square-type current transformer provides a practical solution for measuring higher primary currents in electrical panels, power distribution systems, industrial installations and other electrical measurement applications.
The CT is available with a primary current range of 250A to 600A and a 5A secondary output. This makes it suitable for electrical systems where higher current measurement is required. The available primary current options shown for this model include 250A, 300A, 400A, 500A and 600A, depending on the selected configuration.
The transformer features a 42 mm inner diameter and a 42 × 12 mm busbar window, providing a larger opening for installation around compatible conductors or busbars. The larger window makes this model suitable for applications where a smaller CT opening may not provide sufficient installation space.
With overall dimensions of 78 × 60 × 35 mm, the CT offers a compact square-type design for electrical panel applications. Before installation, the available panel space and conductor or busbar dimensions should be checked to ensure proper fit.
The Class 1.0 accuracy makes this current transformer suitable for general-purpose metering, current measurement and monitoring applications when paired with compatible electrical measuring equipment.
Key Features
- 250-600/5A current transformer
- 5A secondary output
- Class 1.0 metering accuracy
- 42 mm inner diameter
- 42 × 12 mm busbar window
- Encapsulated square-type construction
- Compact design for electrical panel installation
- 2.5–15 VA rating
- Suitable for electrical current measurement
- Suitable for metering and monitoring applications
- Compatible with suitable digital meters and panel meters
- Available in multiple primary current configurations
Technical Specifications
| Specification | Details |
|---|---|
| Product Type | Current Transformer (CT) |
| Model No. | MVG-40-4212 |
| Primary Current | 250–600A |
| Secondary Current | 5A |
| Accuracy Class | Class 1.0 |
| Inner Diameter | 42 mm |
| Busbar Window | 42 × 12 mm |
| Height | 78 mm |
| Length | 60 mm |
| Width | 35 mm |
| VA Rating | 2.5–15 VA |
| Construction | Encapsulated Square Type |
| Application | Metering & Current Measurement |
Accurate Electrical Current Measurement
A Current Transformer (CT) is used to transform a higher primary current into a lower secondary current that can be measured by compatible electrical instruments. This allows electrical meters and monitoring equipment to measure the current flowing through an electrical system without being directly connected to the full primary current.
This 250-600/5A Current Transformer provides a 5A secondary output for compatible digital meters, panel meters, energy meters and other electrical measuring instruments designed for a 5A CT input.
The Class 1.0 accuracy makes this CT suitable for general metering and current measurement applications where dependable measurement is required. The appropriate current ratio should be selected according to the electrical load and the specifications of the connected measuring equipment.
42mm Current Transformer with 42 × 12mm Busbar Window
This model features a 42 mm inner diameter with a 42 × 12 mm busbar window. The larger opening provides additional installation flexibility compared with smaller CT models.
The busbar window should be checked against the actual dimensions of the conductor or busbar before purchasing. Correct sizing helps ensure that the CT can be installed properly without interference with surrounding electrical equipment.
The overall dimensions of 78 × 60 × 35 mm provide a practical compact design for electrical panels, distribution boards and industrial equipment where space and mounting arrangements need to be considered.
Class 1.0 Metering Current Transformer
The Class 1.0 Metering Current Transformer is designed for general electrical measurement and metering applications. Its 5A secondary output can be connected to compatible digital meters, panel meters and other measuring instruments.
The primary current range of 250–600A provides multiple options for different electrical load requirements. Depending on the selected configuration, this model can be supplied for primary currents such as 250A, 300A, 400A, 500A and 600A.
The 2.5–15 VA rating should also be considered when selecting the CT. The required burden should be compatible with the connected meter, secondary wiring and overall electrical measurement system.
Applications
The 250-600/5A Current Transformer can be used in various electrical measurement and monitoring applications, including:
- Electrical control panels
- LT electrical panels
- Energy metering systems
- Power monitoring systems
- Electrical current measurement
- Distribution panels
- Industrial electrical installations
- Commercial electrical systems
- Digital panel meters
- Digital ammeters
- Energy monitoring equipment
- Electrical instrumentation
- Current monitoring systems
- Power distribution applications
Suitable for Digital Meters
The 250-600/5A CT can be used with compatible digital meters and electrical measuring instruments that require a 5A CT secondary input.
A current transformer allows the primary current to be monitored indirectly through the CT secondary output. This provides a practical method for measuring current in electrical panels and power distribution systems.
When selecting a CT for a digital meter, verify the primary current ratio, 5A secondary rating, accuracy class, VA/burden requirement and physical dimensions to ensure compatibility with the intended measuring equipment.
Multiple Primary Current Options
One of the advantages of this model is its range of available primary current configurations. The product information shows options from 250A to 600A, including:
- 250/5A
- 300/5A
- 400/5A
- 500/5A
- 600/5A
The selected CT ratio should correspond to the expected primary current of the electrical system. Choosing an appropriate ratio is important for obtaining suitable measurement performance with the connected meter.
Why Choose MVG Power Solutions?
MVG Power Solutions supplies Current Transformers (CTs) and Digital Meters for electrical measurement, metering and monitoring applications.
Our current transformer range includes different primary current ratios, inner diameters and busbar window sizes to meet various electrical panel and industrial requirements.
The 250-600/5A 42mm Current Transformer is a suitable option for applications requiring a larger 42 mm CT opening, 5A secondary output and Class 1.0 metering accuracy.
For product availability, current ratio options, technical specifications or assistance in selecting a suitable current transformer, contact MVG Power Solutions.
Installation Note
Current transformers should be selected and installed according to the requirements of the electrical system and applicable product specifications. Before installation, verify the primary current, 5A secondary rating, accuracy class, VA rating, busbar opening and physical dimensions. Installation should be carried out by a qualified electrical professional.
