Victron energy Orion, Manual

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4.4 Connection remote on-off
The recommended use of the remote on-off is:
a) A switch wired between the L-H pins (On-level impedance
between L- H pins: <500kΩ)
b) A switch wired between (input/starter) battery plus and H-pin
(on level: >3V)
c) Connection between “VE.BMS charge disconnect” and H-pin
d) A switch between the L-pin and (input/starter) ground (on level:
<5V)
Note: Voltage tolerance L & H pin: +/- 70V
DC
a) L-H pin wiring b) H-pin wiring
c) H-pin wiring BMS d) L-pin wiring
Figure 3: Remote on/off connections