Allen - Bradley 1794 - TB3 is a Flex I/O terminal base unit. Here are its brief parameters:
Product Type: Terminal base unit
Series: Flex I/O
Number of Terminal Strips: 3
Connection Type: Screw clamp
Total Terminals: 52
I/O Terminals: 16
Common Terminals: 18
Supply Terminals: 18
Maximum Supply Voltage: 125V AC/DC, 50/60 Hz
Operational Voltage: 24V DC/AC, 120V DC/AC
Maximum Voltage Rating: 132V AC
Current Capacity: 10 A
Backplane Current Draw: 640 mA @ 5V DC
Flexbus Current Draw: 640 mA @ 5V DC
Isolation Voltage: 125V continuous
Terminal Screw Torque: 0.56 - 0.79 N·m
Dimensions (HxWxD): 94 mm x 94 mm x 69 mm (3.7 in x 3.7 in x 2.7 in)
Weight: Approx. 0.5 kg (1.1 lbs)
Mounting: DIN rail
Wire Size Compatibility: Minimum 0.34 mm² (22 AWG), maximum 4 mm² (12 AWG)
Insulation Thickness: 1.2 mm (3/64 in)
Operating Temperature: -20 °C to 70 °C (-4 °F to 158 °F)
Relative Humidity: 5% to 95% (non - condensing)
Vibration Rating: 5 g from 10 to 500 Hz
Shock Rating: 30 g