RDM Current
Transformer
User Guide
Revision 1.1
PR0675-XX
RDM Current Transformer 2
Contents
Split Core Current Transformer ........................................................................................................... 3
Dimensions ...................................................................................................................................... 3
Electrical Connections........................................................................................................................ 3
Specifications ................................................................................................................................... 4
Disclaimer .................................................................................................................................... 4
Revision History ............................................................................................................................ 4
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RDM Current Transformer 3
Split Core Current Transformer
The RDM current transformer is designed for use with the RDM Energy Meter (PR0670) and the RDM 5 Channel
USB Current Monitor (PR0626v DIN), it is available in two different variants depending on the current being
measured (see part number table below). The current transformer is a split core type for easy installation onto
existing cabling which means it does not require the cable to be disconnected for fitting. The secondary output
is 0.333 volts AC which makes it compatible with a large range of third party devices.
Description Part Number
Current Transformer, split core, 150A Primary, 0.333v Secondary PR0675-150A
Current Transformer, split core, 400A Primary, 0.333v Secondary PR0675-400A
Dimensions
External Dimensions Cable Aperture Secondary Leads
Length (L) Width (W) Height (H) Length (a) Height (e) Length (d) Stripped End (g)
52mm 18mm 54mm 19mm 18mm 1000mm 6mm
Electrical Connections
Description RDM Energy Meter (PR0670) RDM USB Current Monitor (PR0626v DIN)
S1 (white wire) S1 Terminal Signal Terminal
S2 (black wire) S2 Terminal Common Terminal
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RDM Current Transformer 4
Specifications
Description Specification
Primary Current Range 0-150Amps / 0-400 Amps
Secondary Output 0.0- 0.333 volts AC
Accuracy +/- 1%
Frequency 50-60Hz
Insulation Level 3 kV
Lead Length 1m
Lead CSA 0.5mm² (20awg)
Operating Temperature -20°C to +50°C
Storage Temperature -40°C to +70°C
Disclaimer
The specifications of the product detailed in this document may change without notice. RDM Ltd shall not be
liable for errors or omissions, for incidental or consequential damages, directly or indirectly, in connection with
the furnishing, performance or misuse of this product or document.
Revision History
Revision Date Changes
1.0 21/09/2017 First Release
1.1 20/08/2019 Image updated to reflect current labelling
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Group Offices
RDM Group Head Office RDM Inc RDM Asia
80 Johnstone Avenue 9441 Science Centre Drive Sky Park at One City
Hillington Industrial Estate New Hope Jalan USJ 25/1
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G52 4NZ MN 55428 Selangor
United Kingdom United States Malaysia
+44 (0)141 810 2828 +1 612 354 3923 +60 3 5022 3188
support@resourcedm.com usasupport@resourcedm.com info@rdmasia.com.my
Visit www.resourcedm.com/support for more information on RDM
solutions, additional product documentation and software downloads.
While every effort is made to ensure the information given within this
document is accurate, Resource Data Management Ltd shall not be liable for
errors or omissions, for incidental or consequential damages, directly or
indirectly, in connection with the furnishing, performance or misuse of this
product or document. All specifications are subject to change without notice.
See www.resourcedm.com for terms and conditions of sales.
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