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HOBUT CTRA Series Toroidal Current Transformer 120A Primary, 5A Secondary, 2.5VA Power, Base Mount CTRA8120/5-2.5/1-1809
Specifications
| Country of Origin | United Kingdom |
|---|---|
| Brand | HOBUT |
| Model | CTRA8120/5-2.5/1-1809 |
| Depth | 70mm |
| Mount Type | Base |
| Series | CTRA |
| Minimum Operating Temperature | 85°C |
| Secondary current | 5A |
| Primary Current | 120A |
| RS PRO Current Transformer 125 A 21mm BoreBrand | RS PRO |
| CURRENT TRANSFMRBrand | NEUTRAL |
Key Features
- Manufactured to IEC 44-1, IEC 61869-2, IEC 185, and BS 7626 standards.
- Features a base mount with integral mounting bracket and 83mm fixing centres.
- Operates at a constant temperature of 85°C suitable for robust industrial environments.
- Epoxy resin insulated secondary winding ensures enhanced durability and safety.
- Suitable for 50/60Hz frequency applications with accuracy class 1.
- Full scale deflection varies with conductor turns, providing versatile measurement options.
- Compact design with 70mm depth for space-efficient installations.
- Built for use with 5A moving iron meters or cam-operated selector switches.
Product Description
HOBUT CTRA8120/5-2.5/1-1809 is a toroidal current transformer designed with a primary current rating of 120A and a secondary current of 5A paired with a power consumption of 2.5VA. This transformer is compliant with international standards IEC 44-1, IEC 61869-2, IEC 185, and BS 7626, ensuring reliable performance in industrial and electrical applications.
The transformer features a base mount type with an integral mounting bracket having fixing centres spaced at 83mm, allowing secure and stable installation. It is designed to operate continuously at up to 85°C, suitable for demanding environments in automation, process control, and electrical circuitry.
The secondary winding is epoxy resin insulated, enhancing electrical insulation and mechanical protection. The toroidal core concept allows for flexible conductor arrangements, where the full-scale deflection depends on the number of conductor turns through the toroid - providing multiple measurement ranges including 120A/0 turns, 60A/2 turns, 40A/3 turns, 30A/4 turns, 20A/6 turns, 15A/8 turns, and 10A/12 turns.
This device is engineered for use with 5A moving iron meters or cam-operated selector switches and supports frequencies of 50/60Hz with accuracy class 1, making it ideal for precision current sensing and monitoring in industrial automation, electrical distribution, and process control systems.
Manufactured according to IEC 44-1, IEC 61869-2, IEC 185, BS 7626 standards. Primary current of 120A with a 5A secondary output. Power consumption of 2.5VA, suited for accurate measurement. Base mount with integral bracket and 83mm fixing centres for secure installation.
Operates up to 85°C with epoxy resin insulated secondary winding. Supports multiple conductor turns for varied full scale readings. Compatible with 5A moving iron meters and cam-operated selector switches. Suitable for 50/60Hz frequency electrical systems.
Use HOBUT CTRA8120/5-2.5/1-1809 in industrial automation, electrical distribution panels, manufacturing process control systems, and any application requiring precise current transformation and measurement.
Explore our extensive range of Current Transformers and electrical components for reliable and efficient measurement solutions on EnvMart.
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Frequently Asked Questions
The primary current rating of this model is 120A.
This unit has a secondary current output of 5A.
The transformer has a depth of 70mm, suitable for compact installations.
It has a power consumption of 2.5VA.
This transformer operates continuously at a maximum temperature of 85°C.
It is manufactured to comply with IEC 44-1, IEC 61869-2, IEC 185, and BS 7626 standards.
It features a base mount with an integral mounting bracket and 83mm fixing centres.
It is suitable for applications with frequencies of 50/60Hz.
This current transformer has an accuracy class of 1.
It is designed for use with 5A moving iron meters or cam-operated selector switches.
The full-scale deflection varies with the number of conductor turns through the toroid, allowing for multiple measurement ranges.
It is intended for use in industrial automation, electrical distribution panels, and manufacturing process control systems.
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