This PMC and Multipoint Switching System has 10 Channel Relay Output Modules . It works in combination with the PMC CPU or the 160 Channel IPX Master and other standard, semi-custom, or custom I/O modules. The modules provide power fusing, switching, and distribution . It has five 20Amp SPST relays and five 10 amp SPST relays for switching loads to the battery. Each fuse position can be filled with a fuse or circuit breaker. The total module current should not exceed 70 Amps. All of the output harness connections are made with AMP Mate-N-Lok connectors to reduce installation time and errors. The approximate module dimensions are 7.0” X 6.250” X 1.875” (16.2mm X 15.9mm X 4.8mm). It should be installed in a protected environment inside the vehicle. The 838-410 is a non-latching module, which means the output will turn on when it sees it’s address but will not latch and should only be used with the PMC system. In this case, if the channel is turned on momentarily, the output will only be on while the channel is on, but will not latch. This module will respond to programming in the same fashion as any other PMC output module. To keep the output on, the channel must be kept on.