General Description / Specifications

Voltage Sensing

The voltage sensing is done with three 2VA single phase
transformers.

Input voltage:

- High voltage tap (400V) :
340V-5% to 480V=5%
- Medium voltage tap (230V) :
200V-5% to 240V+5%
- Low voltage tap (110V) :
90V-5% to 140V+5%
Voltage Droop
Current sensing : C.T. for // operation
Location : standard line 1 (U), option line 2 (V).
Consult diagrams.
- Maximum continuous current : 1.3A
- Nominal current : 1A
- Maximum current for 10s : 10A

INSTALLATION

The R731 module is designed to be installed vertically next to
the voltage regulator.

LEROY SOMER R731 Connection