The SDU 410 is an independent, engine safety shutdown module designed to provide the functionality required to meet Classification Society Rules up to and including UMS notations. Equipped with eight switch channels for normally open (NO) switches, and inputs for two speed sensors, complete with wire break detection, the SDU 410 also provides for short circuit detection and protection.

The unit also has warning LED’s for each channel reflecting these fault conditions to assist troubleshooting. With its own built in web server, the SDU is automatically configured by the DCU module when connected via the simple two-wire SDU link. The unit can also be used independently and programmed using an Ethernet cable and any computer with a web browser.

Part numbers list:

SDU410 1006451
SDU420 1500158 (newer model - not direct replacement of SDU410)
SDU404 1006418