1746-IA8I

The Allen-Bradley 1746-IA8I module offers 8 isolated circuit inputs and has its own common. It is designed to be used with a wide range of input devices. This range includes limit switches, sensor floats, selector switches, push buttons, and proximity switches. The 1746-IA8I supports a monitoring relay or a motor starter output. It features a voltage range of 85 – 170V AC for increased versatility. The conductors used with this module have a maximum of 14-gauges stranded, 3/64-inch insulation max. The 1746-IA8I operates between 0° and 60° C and can be stored at an ambient temperature of -40-85° C at 5 – 95% relative humidity non-condensing. The insolation voltage is 1500V AC input-to-input and 1500V AC field wiring-to-backplane. The backplane current is 0 A at 24V AC with a power dissipation of 4 Watts at 120V AC/DC. The maximum OFF-state current is 4 mA at 20V AC and 0.5 mA at 20V DC. The input signal delay when OFF-ON is 17 ms at 120V AC and 7 ms at 120V DC. For ON-OFF, 45 ms at 120V AC and 40 ms at 120V DC. The input inrush current is maximum at 0.7 Ampere at 120V AC. The nominal input current at 120V AC is 16 mA and 2.5 mA at 120V DC. It has operating frequency that is 47 – 63 Hz. The module weighs 2 lbs and has 6 "x 6" x 3" in approximate dimensions. The 1746-IA8I has 0.43 max watts per point and a minimal wattage of 0.55 and a total wattage of 4 in power dissipation.