Development and production of systems for measurement and control
Picture 1: Principle of operations
6. Installation
Installation of the HJRX instrument is simple. Instrument is designed to be installed on DIN rail with size of 6 standard DIN
modules.
1. Install the device close to the main circuit breaker
2. Connect CTs to the instrument terminals according to connection diagram and device label. Locate the CTs on measured
phase cables.
3. Connect break-type contacts K1 – K6 (according to the module) connect to control signal terminals of contactor circuit.
4. Set value of controlled current on the DIP switch according to table on device front panel. Resultant value is sum of
particular DIP switch values at position ON. For example 25 A level equals combination 16 + 8 + 1.
5. Connect power supply voltage 230 VAC / 50 Hz to terminals No. 1 and 2.
Caution:
This device is not designed to protect electrical circuits against the short-circuit and it does not react this way.
BMR
trading
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779 00 Olomouc
Czech Republic
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phone: +420 778 066 566
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