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1SVR450116R1100 ABB CM-CT 75/1 Current Transformer 75 A / 1 A
ABB CM-CT 75/1 1SVR450116R1100 is a class 1 plug-in current transformer with a 75 A primary current, 1 A secondary current and 1.5 VA rated burden for industrial measuring and monitoring applications.
£33.55
Why Choose the ABB CM-CT 75/1 Current Transformer?
The ABB CM-CT 75/1 is a reliable plug-in current transformer designed for current measurement and monitoring in industrial electrical systems. Supplied under ABB order code 1SVR450116R1100, it converts a rated primary current of 75 A to a standard secondary current of 1 A for connection to compatible measuring, monitoring and control equipment.
As part of the ABB CM-CT current transformer range, the CM-CT 75/1 combines a 1.5 VA rated burden with accuracy class 1. Its solid-core, through-conductor construction allows the monitored conductor to pass through the transformer aperture, providing galvanically isolated current transformation without a conventional wired primary winding.
The CM-CT 75/1 has compact dimensions of approximately 61 × 78.5 × 48 mm and an internal aperture of approximately 26 mm. It is supplied with a foot angle, insulating protective cap and bar fastening screws, while an optional snap-on fastener is available for convenient DIN-rail mounting.
Key Advantages
- 75:1 current transformation ratio for industrial current measurement.
- 75 A rated primary current with a 1 A secondary output.
- 1.5 VA rated burden for compatible measuring circuits.
- Accuracy class 1 for dependable current measurement.
- Solid-core through-conductor construction simplifies installation.
- Supplied with foot angle, insulating protective cap and bar fastening screws.
- Optional accessory enables convenient DIN-rail mounting.
Key Features
- ABB CM-CT current transformer series.
- 75 A primary current rating.
- 1 A secondary current rating.
- 75:1 transformation ratio.
- 1.5 VA rated burden.
- Accuracy class 1.
- Solid-core plug-in current transformer construction.
- Approximately 26 mm internal aperture.
- Suitable for conductor rails up to approximately 30 × 10 mm.
- Compact format for panel and industrial control installations.
Reliable Current Transformation for Measuring and Monitoring
Current transformers reduce higher primary currents to standardised secondary currents that can be safely and conveniently processed by compatible measuring and monitoring devices. With its 75 A to 1 A transformation ratio, the ABB CM-CT 75/1 provides a proportional secondary signal while electrically isolating the measuring circuit from the primary conductor.
The CM-CT range is designed for industrial switchboards, control cabinets and machinery where current measurement is required for monitoring, metering or control functions. The CM-CT 75/1 can be panel mounted, while the optional CM-CT A snap-on fastener provides a practical solution for mounting the transformer on a DIN rail.
Typical Applications
- Industrial current measurement and monitoring.
- Electrical control panels and switchboards.
- Measuring and monitoring relay circuits.
- Industrial machinery and automation systems.
- Load and current monitoring applications.
- Electrical distribution and control equipment.
Technical Specifications
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| Device Type | Solid-core CT | |
|---|---|---|
| Monitoring Function | Current | |
| Series | CM-CT | |
| Order code | 1SVR450116R1100 | |
| Product group | 310921-Measuring & Monitoring Relays | |
| Product type | Current transformer | |
| Rated primary current | 75 A | |
| Rated secondary current | 1 A | |
| Current ratio | 75:1 | |
| Rated burden | 1.5 VA | |
| Accuracy class | Class 1 | |
| Frequency | 50 / 60 Hz | |
| Core type | Solid core | |
| Internal aperture | approx. 26 mm | |
| Maximum conductor rail size | approx. 30 × 10 mm | |
| Mounting | Panel mounting / optional DIN-rail mounting | |
| Height | approx. 78.5 mm | |
| Width | approx. 61 mm | |
| Depth | approx. 48 mm | |
| Weight | approx. 0.31 kg | |
| EAN | 4013614376795 | |
| Package quantity | 1 piece |
Frequently Asked Questions
What is the ABB CM-CT 75/1 used for?
The ABB CM-CT 75/1 is a current transformer used to reduce and isolate primary current for compatible electrical measuring, monitoring and control equipment.
What is the current ratio of the ABB CM-CT 75/1?
The CM-CT 75/1 has a rated primary current of 75 A and a rated secondary current of 1 A, giving a 75:1 transformation ratio.
What is the burden and accuracy class of the CM-CT 75/1?
The current transformer has a rated burden of 1.5 VA and measurement accuracy according to class 1.
What are the dimensions of the ABB CM-CT 75/1?
The CM-CT 75/1 measures approximately 61 × 78.5 × 48 mm and has an internal aperture of approximately 26 mm.
Can the ABB CM-CT 75/1 be mounted on a DIN rail?
Yes. An optional CM-CT A snap-on fastener is available for DIN-rail mounting of compatible CM-CT current transformers.
ABB Current Transformers for Industrial Monitoring
ABB CM-CT current transformers provide dependable current transformation for industrial measuring, monitoring and control applications, combining standardised secondary outputs with compact installation and class 1 measurement accuracy.
