Allen Bradley 1771-A3B1 Industrial PLC I/O Chassis

FAQ

Q1. What is the 1771-A3B1 used for?
It is an I/O chassis used to mount and connect PLC-5 series modules in industrial automation systems.

Q2. How many slots does it provide?
It provides 12 slots for 1771 series I/O modules.

Q3. Is it compatible with modern PLC systems?
No, it is designed for legacy PLC-5 systems but still widely used in existing installations.

Q4. What power does the chassis require?
It operates on a 5 V DC backplane with up to 16 A capacity.

Q5. What mounting options are available?
It supports both 19-inch rack mounting and panel mounting configurations.

Q6. What is the physical size of the unit?
Approximately 483 mm × 254 mm × 178 mm.

Q7. How much does it weigh?
Around 18 kg, with shipping weight close to 40 lbs.

Q8. Is it still manufactured today?
It is a legacy product, generally available through surplus and industrial equipment suppliers rather than new production.

1771-A3B1 Allen Bradley

We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.

For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.

Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.