SITOP PSE202U NEC Class 2 redundancy module Input/output: 24 V DC suitable for decoupling two SITOP power supplies Output power limited to 100 VA The SITOP PSE202U redundancy modules are the ideal addition to all 24 V power supplies to ensure additional protection against a 24 V supply failure. The NEC class2 redundancy module decouples two 24 V power supplies of the same type with a limit on the output power to 100 VA, so that if one power supply fails, the consumers are still supplied with power from the second power supply. In addition, signaling is provided via a signaling contact, which can be evaluated by a controller, a PC or a control system. Using the redundancy modules, power supplies of the same type can also be connected in parallel to increase power and at the same time provide redundancy. No matter what industry, no matter what requirement - Siemens offers reliable and efficient power supplies for every system.