RS PRO, RC RC Network Capacitor 500V Maximum Voltage Rating 3 Phase

Delta connected flexible wire ended universal DIN rail mounting RC contact arc suppressors designed to be connected across switching contacts of Control/Switchgear Contactors
Ideal for applications where inductive loads are switched and contact arc reduction is required to prolong contact life. Will also help to reduce RF interference generated when switching reactive loads

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.