Allen-Bradley 1771-A3B1 PLC-5 12-Slot I/O Chassis
$123.00
$320.00
Description
Product Description
The Allen-Bradley 1771-A3B1 is a 12-slot I/O chassis engineered for PLC-5 automation systems. This chassis functions as the primary mounting and backplane communication platform for 1771 series I/O modules and associated wiring arms. Designed for fixed panel installation, it provides a centralized structure for module organization, power distribution, and system expansion within industrial control cabinets.
The 1771-A3B1 supports up to 24 Amps of backplane current at 5.25V DC, enabling reliable operation of multiple installed modules in medium to large PLC architectures. Its open-style construction simplifies maintenance access and supports installation in appropriately protected industrial enclosures.
Built for industrial environments, the chassis is designed to withstand vibration, shock, and varying humidity conditions commonly encountered in manufacturing and process automation facilities.
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Product Series | PLC-5 / 1771 Series |
| Model Number | 1771-A3B1 |
| Product Type | I/O Chassis Assembly |
| Number of Slots | 12 I/O Slots |
| Compatible Modules | 1771 Series Modules |
| Backplane Current Capacity | 24 A at 5.25V DC |
| Mounting Method | Panel Mount |
| Installation Type | Stand-Alone Chassis |
| Enclosure Style | Open-Type |
| Operating Temperature | 0 to 60°C |
| Storage Temperature | -40 to 85°C |
| Relative Humidity | 5% to 95% Non-Condensing |
| Operating Shock | 15 g |
| Non-Operating Shock | 30 g |
| Vibration Rating | 2 g at 10–500 Hz |
| Chassis Width | 19 Inches |
| Weight | 5.64 kg |
Key Features
-
Supports up to twelve 1771 I/O modules
-
Integrated backplane communication architecture
-
Designed for PLC-5 control systems
-
High backplane current capacity for large I/O configurations
-
Open-access chassis structure for maintenance convenience
-
Heavy-duty industrial construction
-
Compatible with 1771 wiring arms and field interfaces
-
Suitable for fixed cabinet installation
Application Areas
The 1771-A3B1 chassis is commonly used in:
-
PLC-5 automation systems
-
Manufacturing production lines
-
Process control installations
-
Water and wastewater facilities
-
Material handling systems
-
Packaging machinery
-
Industrial retrofit projects
-
Distributed I/O assemblies
FAQ
What modules are compatible with the 1771-A3B1?
The chassis is designed for Allen-Bradley 1771 series PLC-5 I/O modules and associated wiring arms.
How many module slots are available?
The 1771-A3B1 provides twelve available I/O slots.
Is DIN rail installation supported?
No. This chassis is intended exclusively for panel-mounted installation.
What is the maximum supported backplane current?
The chassis supports up to 24 Amps at 5.25V DC.
Can the chassis operate in industrial environments with vibration?
Yes. The unit is rated for industrial vibration and shock conditions within specified limits.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
Featured
Complementary products
Express Delivery
Fast shipping for your urgent needs.
Large Inventory
Extensive stock ensures quick availability.
Premium Quality
Genuine, high-grade PLC & DCS components.
24/7 Customer Support
Reliable service for clients worldwide.