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Data is subject to errors and technical modifications.
Modular Devices
& Enclosures
Standard CT to Plug-in Adaptor - JFA03
Technical Data
Standard CT to plug-in Adaptor
The JFA03 converter allows for the connection of up to three standard current
transformers, or standard split-core current transformers (with 1A or 5A
secondary’s), to the plug-in system.
The unit has integrated protection circuitry allowing for disconnection from
meter under load conditions for maintenance.
Important Note
This converter does not provide electrical isolation.
Current transformer secondaries may not be earthed and should be wired
as shown.
Dimension Diagrams (mm)
53
58
90
45
5A or 1A secondary
330mV
CT 1
S1
S1
S1
S2
S2
S2
CT 2
CT 3
3 x Standard
Current Transformers
Plug-in Energy Meter
Meter
Converter
S1 S2 S1 S2 S1 S2
• Connect up to 3 standard or split core CT’s
(1A or 5A secondaries)
• Integrated protection circuitry
Technical Characteristics
Burden:
<2VA per channel (5A Version)
<0.5VA per channel (1A Version)
Accuracy:
0.4%
Suggested Cable Size:
(CT to Adaptor)
1.5mm2 or 2.5mm2 (2.5mm2 Max.)
Mounting:
DIN rail 35mm
Termination:
CT to adaptor - Rising clamp screw
terminals
Adaptor to Meter - RJ45 Patch
Cable
Operating Temperature:
–10°C…+45°C
Storage Temperature:
–25°C…+70°C