1 EACH NEUTRIK NAC3M-TRUE1-S & NAC3F-TRUE1-S 20A Power IN/OUT Cable End (One Each) Neutrik Model (NAC3M-TRUE1-S) True1 Power Cable End (Power IN) & (NAC3F-TRUE1-S) True1 Power Cable End (Power OUT). The powerCON TRUE1 is a locking true mains connector for harsh and demanding applications. It replaces appliance couplers wherever a very rugged solution in combination with a locking device is needed in order to guarantee a safe power connection. The powerCON TRUE1 is a connector series with breaking capacity (CBC), i.e. it can be connected or disconnected under load or live.