SGB-OUPA

Auto-reclosure Over & Under Voltage Protectors, modular single/three-phase voltage safety devices, feature automatic power cut-off, delayed auto-reclosing and lockout after repeated faults to protect residential, commercial and factory low-voltage distribution systems.

1P+N single-phase / 3P+N three-phase, max 80A, 400V 50Hz.
Fixed trip: 275V overvoltage / 161V undervoltage.
reset 190–255V, 30s delay.
Auto lockout after repeated fault reclosure failures.
Front status indicator window，Bottom-in top-out wiring layout.

Product
Description

This full SGB-OUPA series covers single-phase and three-phase power supply demands, equipped with intelligent lockout protection to prevent repeated power switching under persistent voltage faults. The unified fixed action voltage and 30-second delay realize stable unattended automatic recovery, while front window indicators clearly distinguish normal power supply and fault cut-off states.

Adopting bottom-in top-out wiring layout for convenient field wiring, the series is installed on the load side of main circuit breakers inside distribution boxes. Dual 1P+N and 3P+N modular sizes cover household, commercial and small factory three-phase power distribution, reliably protecting air conditioners, lighting, production equipment and other loads from overvoltage & undervoltage damage.