Data Sheet for Product

Technical Specification Sheet
Document No. 149-416
May 28, 2019
Siemens Industry, Inc.
Page 1 of 2
Split-Core Current Transformers
Revenue Grade
Small and Large Sizes
Description
The Siemens SCT-SRS and SCT-SRL series of hinged
split-core current transformers are designed for
Revenue Grade applications that require maximum
accuracy and precision when used with the Siemens
MD series power meter. The superior performance,
robust design and unique shrouded snap, lock-and-tilt
top of these CTs make them ideal for use in high
accuracy current measurement applications such as
energy and demand metering, tenant submetering and
load surveys. These transformers are safely and easily
installed over existing electrical power lines without
disconnecting the lines or interrupting service.
Revenue Grade performance of these CTs meets or
exceeds the accuracy specifications for IEC 61869-2
Class 0.2, IEC 60044-1 Class 0.3, and IEEE C57.13
Class 0.3.
The SRS Series CTs are UL2808 and CSA C22.2 No.
61010-1 listed as stand-alone products, CE marked,
RoHS compliant, and are 600V CAT III rated devices.
They are available for current inputs up to 400 Amps.
Features
• Available with two window sizes:
Small (SCT-SRS) 0.4” (10.2 mm)
Large (SCT-SRL) 1.25" (31.8 mm)
• Available in five current ranges:
Model Current Range
5A, Small 0.05 to 10A AC
50A, Small 0.5 to 100A AC
100A, Large 1.0 to 200A AC
200A, Large 2.0 to 400A AC
400A, Large 4.0 to 500A AC
• Output: 333.3 mV at rated current.
• Revenue Grade Accuracy.
SCT-SRS (Small) CT SCT-SRL (Large) CT
Table 1. CT Dimensions in Inches (mm).
CT Size
Part Number
A
B
C
W
Small
SCT-SRS-005-U
SCT-SRS-050-U
2.4
(61.0)
1.65
(41.9)
0.85 - 1.1
(21.6 – 27.9)
0.4
(10.2)
Large
SCT-SRL-100-U
SCT-SRL-200-U
SCT-SRL-400-U
3.3
(83.8)
3.1
(78.8)
1.3
(33.0)
1.25
(31.8)
Figure 1. Small SCT-SRS Dimensions.
Figure 2. Large SCT-SRL Dimensions.