The ERDN20 series is a 20A redundancy module that can be used with a power supply to improve overall System opération reliability. Product key features include:5V/12V/24V/48V input voltage for sélection, support N + 1 and 1 +1 redundancy Systems,built-in two rails DC input contacts and single output. The MOSFET technology impiemented can reduce heat loss and reduce the voltage différence between the input and output voltages, built-in 2 channels DC OK relay contacts for monitoring output status, ultra-wide operating température of -40 to +80°C.