The Victron Energy VDI-16 is a passive galvanic isolator for 230 V shore power that uses two anti-parallel diodes to block electrolytic currents until a fault voltage appears.
- Model: VDI-16 from Victron Energy
- Diode pair in anti‑parallel; conduction threshold ≈ 1.4 V DC
- Designed for installation directly behind the boat's 230 V shore inlet
- Forward voltage exceeds typical metal-to-metal potential differences, preventing electrolytic current
- Allows conduction only on higher fault voltages so the residual-current device (RCD) can trip
- Passive, maintenance‑free component-no external power required
- Reduces risk of galvanic corrosion on marine AC systems
- Should be fitted by a qualified electrician for safe operation
Check compatibility with your vessel's shore-power system and consult a marine electrician for installation and testing.