Phoenix Contact 1607751 The contact insert specified for various Conexis Variocon models features a light gray design with seven pin positions and comes in varying conductor sizes between 0.5 mm2 to 16 mm2. It has a rated voltage of 690 volts and a maximum current capacity of 70 amps, utilizing a screw connection method with a pin connection type. Importantly, connectors on this insert should only be connected or disconnected when there is no load applied.