CRYDOM DRODC5 Input/Output Relay, 3A, DIN Rail, Red. More details: Input/Output Relay Module, Max. Output Amps w/Heat Sink 3, Input Voltage 3.5 to 8VDC, Voltage Output 5 to 48VDC, Case Color Red, Mounting Style DIN Rail, Special Features LED Indicator, Standards UL, CSA, CE