Industrial / Energy Monitoring
User Manual for Janitza SC-CT-20 Split-Core Current Transformer
Quick guide for the Janitza SC-CT-20 split-core current transformer. Includes technical specifications, compatibility notes, and dimensional drawings for the UMG 20CM system.
Quick answers from the manual
Quick answer
- The SC-CT-20 is a split-core current transformer designed exclusively for use with the Janitza UMG 20CM system, featuring a 3000/1 ratio and a maximum operating current of 63 A. p. 1
Key actions
- Install the transformer around the primary conductor (max 10 mm diameter). p. 1
Technical specifications
| Parameter | Value | Meaning | Pages |
|---|---|---|---|
| Max. Operating Current | 63 A | Maximum current the transformer can measure. | p. 1 |
| Transformer Ratio | 3000/1 | The ratio of primary to secondary current. | p. 1 |
Where to find it in the PDF
- Technical Data p. 1
- Dimensional Drawings p. 2
Table of contents
Manual images
Click an image to enlargeImportant Information
The Janitza SC-CT-20 split-core current transformer is designed specifically for use with the UMG 20CM system. It is not compatible with other devices. Ensure that the primary conductor diameter does not exceed 10 mm and the operating current does not exceed 63 A.
Product Overview
These split-core current transformers are designed for quick and safe installation in existing systems. The split-core design allows for easy mounting without the need to disconnect primary conductors, facilitating efficient integration into your electrical setup.
Technical Specifications
- Type: SC-CT-20
- Max. Operating Current: 63 A
- Transformer Ratio: 3000/1
- Max. Ø of Primary Conductor: 10 mm
- Accuracy Class: 1
- Dimensions (W x H x D): approx. 32 x 41.4 x 32.3 mm
- Weight: 0.04 kg
- Part No.: 15.03.092
Accessories
The load (3.9 Ω) for the SC-CT-20 operating current transformers is included in the scope of delivery. It comes with a 1.5 m connection cable and a spring terminal (Part No.: 15.03.086).
Dimensional Drawings
The device features a compact design. The physical dimensions are 32 mm width, 41.4 mm height, and 32.3 mm depth. The internal opening diameter for the conductor is 14.7 mm.
Practical help
Common problems
Incompatibility with other systems
The SC-CT-20 is designed exclusively for use with the UMG 20CM. Do not attempt to use it with other measurement devices.
Before use
- Verify compatibility with the UMG 20CM system
- Ensure the primary conductor diameter is 10 mm or less
- Check that the operating current does not exceed 63 A
- Confirm the load (3.9 Ω) is connected using the provided 1.5 m cable
Specs in practice
- Transformer Ratio
- 3000/1 ratio for current measurement conversion.
- Accuracy Class
- Class 1 indicates the precision level of the transformer.
Images and diagrams
- The dimensional drawing illustrates the compact footprint of 32 x 41.4 x 32.3 mm.
- The product photo demonstrates the split-core opening mechanism for easy installation.
Model compatibility
- Only compatible with the UMG 20CM.
Manual page author
Emily Carter
User documentation editor
Prepares concise manual descriptions and highlights the most useful setup, operation, and maintenance information for readers.