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1SVR450117R1200 ABB CM-CT 400/1 Current Transformer 400 A / 1 A
ABB CM-CT 400/1 1SVR450117R1200 is a class 1 plug-in current transformer with a 400 A primary current, 1 A secondary current and 5 VA rated burden for industrial measuring and monitoring applications.
£33.55
Why Choose the ABB CM-CT 400/1 Current Transformer?
The ABB CM-CT 400/1 is a robust plug-in current transformer designed for current measurement and monitoring in industrial electrical systems. Supplied under ABB order code 1SVR450117R1200, it converts a rated primary current of 400 A to a standard secondary current of 1 A for compatible measuring, monitoring and control equipment.
As part of the ABB CM-CT current transformer range, the CM-CT 400/1 provides a rated burden of 5 VA with measurement precision according to accuracy class 1. Its plug-in, through-conductor construction allows the monitored primary conductor to pass through the transformer opening, providing a proportional secondary current for industrial measurement applications.
The CM-CT 400/1 has compact overall dimensions of 61 × 78.5 × 48 mm, an internal opening diameter of 26 mm and a net weight of approximately 0.27 kg. It is supplied with a foot angle, insulating protective cap and bar fastening screws, while an optional snap-on mounting accessory enables convenient DIN-rail installation.
Key Advantages
- 400 A primary current rating for industrial current monitoring.
- 1 A rated secondary current for compatible measuring equipment.
- 400:1 current transformation ratio.
- 5 VA rated burden for measurement circuits.
- Accuracy class 1 for dependable current measurement.
- 26 mm internal opening accommodates suitable conductors.
- Supplied with foot angle, insulating protective cap and bar fastening screws.
- Optional snap-on accessory enables convenient DIN-rail mounting.
Key Features
- ABB CM-CT current transformer series.
- 400 A rated primary current.
- 1 A rated secondary current.
- 5 VA rated burden.
- Accuracy class 1.
- 26 mm internal diameter.
- Suitable for conductor rails up to 30 × 10 mm.
- Plug-in current transformer supplied without a primary conductor.
- Compact construction for industrial panel installations.
- Optional snap-on mounting accessory for DIN-rail installation.
Reliable Current Transformation for Industrial Monitoring
Current transformers reduce higher primary currents to standardised secondary currents that can be processed by compatible measuring, monitoring and control equipment. With its 400 A to 1 A transformation, the ABB CM-CT 400/1 provides a proportional secondary signal while allowing connected measurement equipment to operate with a much lower current than the monitored primary circuit.
The CM-CT range is designed for switchboards, control cabinets, distribution equipment and industrial machinery where dependable current measurement is required. The CM-CT 400/1 is supplied with a foot angle, insulating protective cap and bar fastening screws, while an optional snap-on mounting accessory provides an alternative solution for DIN-rail installation.
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 | 1SVR450117R1200 | |
| Product group | 310921-Measuring & Monitoring Relays | |
| Product type | Current transformer | |
| Rated primary current | 400 A | |
| Rated secondary current | 1 A | |
| Current ratio | 400:1 | |
| Rated burden | 5 VA | |
| Accuracy class | Class 1 | |
| Construction | Plug-in current transformer | |
| Internal diameter | 26 mm | |
| Maximum conductor rail size | 30 × 10 mm | |
| Primary conductor | Not included | |
| Mounting | Panel mounting / optional DIN-rail mounting | |
| Width | 61 mm | |
| Height | 78.5 mm | |
| Depth | 48 mm | |
| Net weight | approx. 0.27 kg | |
| EAN | 4013614376894 | |
| Package quantity | 1 piece |
Frequently Asked Questions
What is the ABB CM-CT 400/1 used for?
The ABB CM-CT 400/1 is a current transformer designed to convert a higher primary current into a proportional lower secondary current for compatible electrical measuring and monitoring equipment.
What is the current ratio of the ABB CM-CT 400/1?
The CM-CT 400/1 has a rated primary current of 400 A and a rated secondary current of 1 A, giving a 400:1 transformation ratio.
What is the burden and accuracy class of the CM-CT 400/1?
The current transformer has a rated burden of 5 VA and measurement precision according to accuracy class 1.
What size conductor can pass through the ABB CM-CT 400/1?
The CM-CT 400/1 has an internal diameter of 26 mm and is suitable for conductor rails up to 30 × 10 mm.
Can the ABB CM-CT 400/1 be mounted on a DIN rail?
Yes. A compatible optional snap-on mounting accessory is available for installing the CM-CT 400/1 on a DIN rail.
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.
