Siemens 3RK1400-1DQ03-0AA3 Safety Relay Module

Siemens 3RK1400-1DQ03-0AA3 is an AS-i K60 digitalI/O compact module that provides four digital inputs and four digital outputs in a compact, IP67-rated housing designed for rugged field installations. It operates on 24 V DC and uses eight M12 connectors (four input and four output) for straightforward wiring, with up to 200 mA per input and up to 2 A per output; the total current for all outputs is limited to 4 A. This makes it suitable for AS-i networks in machinery and automation where a compact, weather-resistant I/O solution is needed. As part of Siemens’ AS-i K60 family, the module is intended for mounting with the 3RK1901-0CA00 mounting plate (sold separately), enabling secure DIN-rail or panel installation in challenging environments. The 3RK1400-1DQ03-0AA3 delivers reliable digital input and output channels for basic on/off control, status sensing, and actuation tasks within automation projects that demand IP67 protection and a small footprint.