The 2866404 is a 1-output DIN rail mount primary-switched TRIO AC/DC Power Supply Unit particularly suited to standard machine production. The 2866404 power supply features robust metal housing, the high electric strength and the wide temperature range that ensures a high level of power supply reliability. The devices can be connected in parallel to increase the capacity and redundancy. It can be used worldwide in all industrial sectors due to a wide-range input. The clear LED signaling and the device connection with double terminal block for plus and minus fast potential distribution are further advantages of this device series. A third terminal block for minus, simplifies the grounding on the secondary side. All power supply units are idle proof and short circuit proof and provide a regulated and settable output voltage.