Roxburgh EMC, CRH Surge Protection Device 500 V ac Maximum Voltage Rating 3 Phase

These devices are designed for connecting directly across a mains supply but should NOT be used in positions where failure of the capacitor would expose anyone to electric shock. CRH Series. Industrial grade RC contact suppressors comprising a resistor and capacitor in series to improve contact life. May be connected across switch or relay contacts to suppress interference generated when switching reactive loads Self healing construction and self extinguishing case 500Vac rating - single-phase and three-phase versions Moulded-in surface mounting lugs