Allen-Bradley 1771-A4B Industrial PLC I/O Chassis

FAQ

Q1. What is the 1771-A4B used for?
It is a 16-slot I/O chassis used in Allen-Bradley PLC-5 systems to mount and connect I/O modules.

Q2. How many modules can it hold?
It supports up to 16 I/O modules.

Q3. Is it still commonly used today?
It is a legacy PLC-5 component but still widely used in existing industrial installations.

Q4. What is the power requirement?
It uses a 5V DC backplane with up to 24A capacity.

Q5. What are its physical dimensions?
It measures approximately 12.4 × 24 × 7.6 inches.

Q6. What is its weight?
Approximately 7.3 kg (16 lbs).

Q7. What type of mounting does it use?
It supports panel or back-panel mounting inside control cabinets.

Q8. What systems is it compatible with?
It is compatible with Allen-Bradley PLC-5 processors and 1771 series I/O modules.

1771-A4B 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.