Installation Guide

6
Meazon Electronic Systems S.A., 57 N.E.O Patron - Athinon Str. , 26442, Patra, Greece
[e-mail] [e-mail] [phone] www.meazon.com
Wiring requirements: 16 or 18AWG Solid/ Stranded, torque 0.6Nm.
Make sure that the maximum amperage to be measured does not exceed the maximum value the provided
Meazon DinRail 3-Phase Advanced NB can measure.
Meazon DinRail 3-Phase Advanced NB must be protected with a circuit breaker (2A recommended, 10A Max)
(3 pieces for 3-phase electrical panels, 1 piece for single-phase electrical panels).
1) Locate the main electrical panel.
2) Turn the power off for safety reasons.
3) Locate the current conductors to be measured. Current transformers will be added at those conductors
WARNING! Current conductors should be between the electrical fuse and the circuit breaker (in case of
metering electrical loads separately), or between protection relay and electrical fuse (in case of measuring total
consumption).
4) Check inside the electrical panel for the optimal location to place the Meazon DinRail 3-Phase Advanced
NB and the 2A protective circuit breaker.
5) Place the protective circuit breaker at the rail.
6) Place the DinRail having the protection clip downwards and lock it at the rail of the electrical panel
In this installation guide DinRail 3-Phase Advanced NB will be called DinRail for brevity reasons.
Installation in a three-phase panel
CTs installation
• Connect each of the three Current Transformer’s
outputs (black wire) to contact 6 (CTB) of the
DinRail.
• Connect each of the three Current Transformer’s
inputs (red wire) to contact 10 (CTR1), 11 (CRT2)
and 12(CRT3) of the DinRail respectively.
• Locate the current conductors to be measured
starting from phase L1 and pass it through the coil
of the CT (current transformer) by opening the coil
of CT.