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Installation Instructions

ManualsBrandsSiemens ManualsBuilding automationToroidal Solid Core Current Transformers Revenue Grade Small and Large Sizes Technical Specificaiton Sheet
12
Installation Instructions
Document No. A6V11139222
March 20, 2017
Connecting a Toroid Solid Core
Current Transformer to a Load
Item Number A6V11139222, Rev. AA Page 1 of 2
Product Description
This is a step-by-step guide to connecting Siemens
Industry's Toroid Solid Core Current Transformers
(CTs) to a load.
Contents
1 Toroid Solid Core Current Transformer
Product Numbers
Revenue Grade Current Transformers SCT-SRx
SCT-RGT12-0005-U Toroid Solid Core CT; 0.5”
(12.7 mm) Opening, 5A
SCT-RGT12-0020-U Toroid Solid Core CT; 0.5”
(12.7 mm) Opening, 20A
SCT-RGT12-0050-U Toroid Solid Core CT; 0.5”
(12.7 mm) Opening, 50A
SCT-RGT12-0100-U Toroid Solid Core CT; 0.5”
(12.7 mm) Opening, 100A
Warning/Caution Notations
WARNING:
Personal injury or loss of life
may occur if you do not follow
the procedures as specified.
CAUTION:
Equipment damage or loss of
data may occur if you do not
follow the procedures as
specified.
Equipment is protected throughout by double
insulation (IEC 536 Class III).
Required Tools
Screwdrivers, one large blade and one small blade.
Expected Installation Time
20 minutes
Prerequisites
None
Installation
1. Disconnect load from the power source.
2. Insert the conductor through the center of the
CT. The CT label printing should be oriented
towards the load. See Figure 1 examples.
NOTE: Ensure that the maximum current of
the conductor does not exceed the
CT's rating.
Figure 1. Inspect Solid Core CT for Correct Value and
Install Wire Conductor through the Center of the CT.
3. Repeat Steps 1 and 2 if you are using more
than one CT.
4. Connect the white wire on the CT to the positive
terminal (+) on the measuring device. See
Figure 2.
5. Connect the black wire on the CT to the
negative (-) terminal on the measuring device.
No connection is made to the shield (S)
terminal. See Figure 2.

Summary of content (2 pages)