mk3:stowiring []

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Relay Wiring – ReadBack Relays with STO

Only for GRNBM_MK3_HV_STO

Wiring Diagram

This diagram shows how to wire the relays with state feedback using 4 SPDT contacts per side (positive and negative). Feedback is routed through RB1–RB8 lines, each color-coded for clarity. The relays directly switch battery plus and minus without any precharge stage.

Safety Notes

Relay coils must operate at 12 V.

Recommended relay type: C320K/1000

Only handle feedback wiring with HV disconnected!

Check wiring regularly for secure connections.

STO Output (not shown in diagram)

A separate 24 V STO output is available for controlling inverters or similar devices.
Refer to your inverter’s documentation for proper connection details.