Siemens 3RW4747-0VC70 firing PCB, 460 V, for 3RW4446 and 3RW4447 soft starters, printed circuit board subassembly, current lifecycle stage.
| Parameter | Value |
|---|---|
| Product designation | Printed circuit board |
| Parameter | Value |
|---|---|
| Substance prohibitance | 03/01/2017 |
The 3RW4747-0VC70 is a firing printed circuit board designed for Siemens 3RW4446 and 3RW4447 soft starters at 460 V. This is the subassembly that generates the gate-firing pulses for the thyristor stacks — not a standalone soft starter, but the control board that makes the starter switch.
It is designed for the Siemens 3RW4446 and 3RW4447 soft starters at 460 V. This is the firing PCB that controls the thyristor gate pulses; it is not a universal board and has no listed cross to other frames.
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