Model Number
VMD421H-D-3 B73010007
Type 1
voltage relay VMD421H-D-3
Type 2
coupling device VMD421H-D-3
Type 3
insulation fault locator VMD421H-D-3
Type 4
Residual current monitor VMD421H-D-3
Type 5
universal measuring device VMD421H-D-3
Type 6
monitor VMD421H-D-3
Type 7
signal converter VMD421H-D-3
Type 8
Smart charge controller VMD421H-D-3
condition
original and new VMD421H-D-3