96814809 16-Slot PLC Rack | Allen-Bradley 1771-A4B/B
Manufacturer: Allen Bradley
-
Part Number: 1771-A4B(RACK)
Condition：New with Original Package
Product Type: 96814809 16-Slot PLC Rack
-
Country of Origin: USA
Payment:T/T, Western Union
Shipping port: Xiamen
Warranty: 12 months
Product Description
The Allen-Bradley 1771-A4B/B (96814809) is a 16-slot universal I/O chassis for the PLC-5 1771 platform. It provides the mechanical structure, integrated parallel backplane, and power distribution path required for high-density 1771 digital, analog, communication, and specialty modules.
As the largest chassis in the 1771 family, it is intended for centralized PLC-5 control systems and large I/O installations. The Series B revision improves electrical robustness and module compatibility compared to earlier Series A versions.
The chassis itself does not generate DC power; it requires an external 1771-P series power supply. The commonly referenced 24 A at 5.25 VDC rating corresponds to the backplane current capacity when paired with a suitable power supply such as the 1771-P4S or equivalent.
This model is discontinued by the manufacturer but remains widely used in legacy PLC-5 systems.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley (Rockwell Automation) |
| Model | 1771-A4B/B |
| OEM Part Number | 96814809 |
| Product Line | PLC-5 / 1771 I/O |
| Module Type | Universal I/O Chassis (Rack) |
| Number of Slots | 16 I/O module slots |
| Backplane Type | 1771 parallel backplane |
| Backplane Voltage | 5.25 VDC nominal |
| Maximum Backplane Current | Up to 24 A (depends on installed power supply) |
| Power Supply Requirement | External 1771-P series |
| Mounting | Panel / back panel mount |
| Enclosure Type | Open style |
| Communication Options | Local I/O, 1771-ASB (RIO), 1771-ACN15 (ControlNet), 1771-ENI (Ethernet interface) |
| Operating Temperature | 0 to 60 °C |
| Storage Temperature | –40 to +85 °C |
| Operating Shock | 15 g |
| Non-Operating Shock | 30 g |
| Vibration | 2 g at 10–500 Hz |
| Weight | 6.0–8.0 kg |
| Certifications | UL, cUL, CE |
| Lifecycle Status | Discontinued / Legacy |