All ProductsCrydomElectromechanicalRelaysI/o Relay Modules - Input CRYDOM ElectromechanicalRelaysI/o Relay Modules - Input 84110210 DC INPUT MODULE 3.3 ~ 32VDC (24VDC NOM) INPUT 5VDC (3 ~ 6VDC) SUPPLY MFR. Name: Crydom M-IAC5 AC INPUT MODULE 90 ~ 140VAC (120VAC NOM) INPUT 5VDC (3 ~ 6VDC) SUPPLY MFR. Name: Crydom M-IAC5A AC INPUT MODULE 180 ~ 280VAC (240VAC NOM) INPUT 5VDC (3 ~ 6VDC) SUPPLY MFR. Name: Crydom