This position indicator type HMC-3C is applied with motor drive units of CAM7 and CMA9 (hereinafter referred as MDU) of on-load tap changer, and it can display the actual position of tap changer, there are three buttons "1-N", "stop" and "N-1" on the front panel, beside them is an indication lamp of "Remote Control". The input signal for position indication is decimal code and output BCD code.

HMC-3C adopts LED digital tube to display the positions and it characterizes as high stability and reliability, the plastic housing of HMC-3C make it light-weighted, small-sized, easy and safe to operate.

1. Power supply : 220V AC (Note: special power supply upon request)
2. Power frequency : 50 Hz or 60 Hz
3. Maximum indication position : 35
4. Operating temperature : -10~40

• HMC-3C Operating Instruction