Allen-Bradley/Rockwell Automation 1771-A1B field wiring arm

The 1771-A1B is an Allen-Bradley PLC-5 Chassis . The Allen-Bradley 1771-A1B chassis is the backbone of every Allen-Bradley PLC-5 programmable controller system. This chassis provides a communication path between various I/O modules and either the controller or the I/O adapter module. 1771-A1B is a universal and compact enclosure for the processor, power-supply modules, remote and extended-local I/O adapter modules, and I/O modules. 1771-A1B chassis has 4 slots for mounting various modules. The far-left slot of 1771-A1B chassis is reserved for either the processor or adapter module. The other slots in the chassis are compatible with communication modules, I/O modules, and power-supply modules. It is crucial to follow the compatibility tables for each PLC-5/1771 module. Please note the 1771-A1B is part of series B. Power supplies 1771-P1, -P2, -P7 and -PS7 can be mounted on the left side plate of the 1771-A1B chassis.

Technical specifications for 1771-A1B

ManufacturerRockwell Automation

BrandAllen-Bradley

Part Number/Catalog No.1771-A1B

Module TypeI/O Chasis

Number of Module I/O Slots4 Slots

Max Backplane Current (at 5 Volts DC)16 Amperes

Mount TypeBack Panel

Enclosure TypeOpen Style

Operating Shock15 g

Nonoperating Shock30 g

Vibration2 g (at 10-500 Hertz)

Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)

Weight8.0 lbs (3.6 kg)

LocationStand-Alone