Model 21 Current Transformer
Model 21 Current Transformer
Introducing the Model 21 Current Transformer, a precision-engineered product, brought to you by Spectrum Industries. Designed to deliver accurate current measurements in a variety of electrical applications, this current transformer is an essential component for professionals seeking reliable and high-quality instrumentation. Whether used in industrial, commercial, or laboratory settings, the Model 21 ensures precise data collection, helping to optimize system performance and maintain safety standards.
Overview
Introducing the Model 21 Current Transformer, a precision-engineered product, brought to you by Spectrum Industries. Designed to deliver accurate current measurements in a variety of electrical applications, this current transformer is an essential component for professionals seeking reliable and high-quality instrumentation. Whether used in industrial, commercial, or laboratory settings, the Model 21 ensures precise data collection, helping to optimize system performance and maintain safety standards.
a global leader in electrical and electronic manufacturing, the Model 21 embodies decades of expertise and innovation. Its robust construction and advanced design features make it suitable for demanding environments, providing consistent and dependable performance over time. The transformer’s compact size combined with its high accuracy makes it a versatile choice for various measurement and monitoring tasks, from power distribution to equipment testing.
Spectrum Industries is proud to offer this exceptional product, emphasizing quality and customer satisfaction. The Model 21 Current Transformer is an excellent solution for engineers, technicians, and industry professionals who require dependable current sensing technology. With its proven track record and ’s renowned engineering standards, this transformer stands out as a trusted tool for precise electrical measurements, ensuring your projects and operations run smoothly and efficiently.
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Product Specifications
- Frequency
- 50–400 Hz
- Insulation BIL
- 10 kV
- Weight
- 10 lbs
- Application
- Metering, Protection
- Standards
- UL, ANSI/IEEE C57.13, IEC 44-1
- Insulation Voltage
- 600 V
- Window Diameter
- 1.25 in
- Terminals
- Brass studs No. 8-32
- Multi-ratio Option
- Available on request
Specification Table
| Primary A | Secondary A | Ratio (display) | Relay Class | Thermal Rating Factor @ 30°C | Thermal Rating Factor @ 55°C | Secondary Resistance |
|---|---|---|---|---|---|---|
| 50 | 5 | 50:5 | — | 2 | 2 | 0.026 |
| 75 | 5 | 75:5 | C10 | 2 | 2 | 0.042 |
| 100 | 5 | 100:5 | C10 | 2 | 2 | 0.063 |
| 150 | 5 | 150:5 | C20 | 2 | 1.5 | 0.098 |
| 200 | 5 | 200:5 | C20 | 2 | 1.5 | 0.126 |
| 250 | 5 | 250:5 | C20 | 1.5 | 1.5 | 0.158 |
| 300 | 5 | 300:5 | C20 | 1.5 | 1.33 | 0.168 |
| 400 | 5 | 400:5 | C50 | 1.5 | 1 | 0.253 |
| 500 | 5 | 500:5 | C20 | 1.5 | 1 | 0.283 |
| 600 | 5 | 600:5 | C50 | 1.33 | 1 | 0.339 |
| 750 | 5 | 750:5 | C50 | 1 | 0.8 | 0.424 |
| 800 | 5 | 800:5 | C50 | 1 | 0.8 | 0.452 |
| 1000 | 5 | 1000:5 | C100 | 1 | 0.8 | 0.565 |
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