PE · Protective earth
The earthing conductor carried separately from neutral to every load, giving fault current a defined low-impedance return so protective devices clear and enclosures stay safe to touch.
Current numbers
800 VDC two-wire (optional; isolated from PE)Diablo 400 v0.7.0's optional two-wire 800 VDC output is safety-isolated from PE; the ±400 V output is midpoint-bonded (Ch 4.7)
+157%NVIDIA's power gain in one wire gauge when 3-wire DC (POS/RTN/PE) replaces 4-conductor 415 VAC (Oct 2025; May 2025: ~85%)