Riken 400 A 4‑Pole Automatic Transfer Switch (Auto Changeover)

400A Rated Current (Per Pole)
Supports high-load environments requiring reliable switching without overheating or loss of contact.

4-Pole Switching (3-Phase + Neutral)
Ensures full electrical isolation of all conductors during transfer, protecting sensitive equipment from unbalanced loads or stray voltages.

Automatic Operation
Continuously monitors the voltage of the main supply. In the event of a power failure, the switch transfers load to the backup source and automatically reverts when the mains is restored.

Manual Override Function
Allows manual transfer for testing, maintenance, or emergency use.

Open-Transition Switching
Break-before-make system avoids short circuits or phase conflicts during transition between sources.

DIN-Rail or Panel Mountable
Modular design allows flexible installation in control panels or switchboards.

Compact, Robust Construction
Housed in a flame-retardant casing with heavy-duty terminals for safety and long service life.