YOKOGAWA AR-PH Arrester for Power Supply

Description

The YOKOGAWA AR-PH Arrester for Power Supply is a specialized surge protection device designed for power supply systems, though direct technical specifications for this exact model are not available. Based on related power equipment reference data, similar surge arresters and associated power components typically serve to shield power supply infrastructure from transient voltage surges, such as those caused by lightning or electrical switching, to prevent equipment damage and ensure stable operation. Related power cabinet systems compatible with such protection devices feature 3P+N+PE wiring type, accept 380 V ±15% input power at 45 Hz – 55 Hz, and support rated power up to 960 kW (compatible with 800 kW), with output voltage ranging from 150 V to 1000 V. Comparable surge protection components like TDK varistors offer varying specifications, including disk diameters from 14 mm to 20 mm, working voltage ranges from 130 VRMS to 680 VRMS, surge peak current from 4.5 kA to 12 kA, and capacitance from 260 pF to 2400 pF. As a power supply arrester, the YOKOGAWA AR-PH is expected to integrate with medium and high-voltage power systems, providing overvoltage, overcurrent, and lightning protection to maintain power supply reliability in industrial, commercial, or utility applications.