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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for 1771-A4B
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Product Model1771-A4B
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Spare Model1771A4B
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Product ParametersUNIVERSAL INPUT/OUTPUT CHASSIS
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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Estimated Shipping Size61x17x31cm
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ManufacturerAllen-Bradley
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Weight6.24 kg
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I/O Module Slots16
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Maximum Backplane Current @5V dc24A
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Operating Temperature0–60°C (32–140°F)
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Storage Temperature−40–85°C (−40–185°F)
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Humidity5–95% RH, non-condensing
Description
1771A4B
PLC RACK
UNIVERSAL INPUT/OUTPUT CHASSIS
16 SLOT
24 AMP
5.25 VDC
PLC RACK
UNIVERSAL INPUT/OUTPUT CHASSIS
16 SLOT
24 AMP
5.25 VDC
Revisions
Revision Part #
Also known as
Information
Overview
Manuals
Technical notes
Product Applications
Grounding Procedures
Features:
- 16-Slots for 1771 Series I/O Modules
- Back-Panel Mounting
- Units Available With and Without Power Supply
The 1771-A4B I/O chassis from Allen Bradley is engineered for robust performance within the PLC 5 system architecture. This configuration allows for a total of 16 slots, accommodating several modular components essential for your application. Notably, it can manage up to four I/O racks, employing 1/2-slot addressing for optimal space utilization. Installation of this chassis requires 36 keying bands made of plastic, ensuring secure setup.
The 1771-A4B Allen Bradley 16-Slot I/O Chassis may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
Allen Bradley 1771-A4B 16-Slot I/O Chassis Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Compatibility is versatile with various processors, particularly those rated between 2 and 4 amps that possess integral power supplies. Additionally, you can utilize power supply modules with ratings from 3 to 8 amps. External power supplies intended for this chassis must be rated between 6.5 and 16 amps. Furthermore, the leftmost slot is dedicated for processor module installation as well as the I/O adapter module. Communication modules and I/O modules can occupy any slot but are restricted from the leftmost slot, similar to power supply module installations. All these features combine to make the 1771-A4B an adaptable and essential component for performance-driven industrial setups.
- Material Handling & Conveyors:Large-scale sorters, palletizers & assembly lines with many I/O points
- Paper & Pulp Machines:Hydraulic positioning/force control on wet/dry ends to optimize fluid/power
- Oil, Gas & Chemical Processing:Batch/continuous control: butterfly valves, pumps & flow switches
- Metal & CNC Fabrication:Drill presses, welders & CNC motor control with motion/high-speed modules
- Water & Wastewater Treatment:Complex logic for pump stations, filtration & chemical dosing
- HVAC & Large Utilities:Controls industrial-scale ACs & expansion tanks in large facilities
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
Central Ground Bus: Each enclosure must have a central ground bus as a common connection for the chassis and the enclosure itself.
Conductor Specs: Use 1-inch (2.54 cm) copper braid or 8 AWG copper wire to connect the chassis to the ground bus.
Connection: Scrape paint from the panel to ensure electrical contact. Do not stack ground lugs directly on top of each other; separate them with nuts and star washers.
FAQs
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What is 1771-A4B?
+The Allen-Bradley 1771-A4B is a 16-slot, universal I/O chassis for the PLC-5 control system, intended for back-panel mounting in industrial environments. -
What is the backplane rated current of the 1771-A4B?
+The maximum backplane current is 24 Amps. -
Which power supplies are compatible with the 1771-A4B?
+It can be powered by the 1771 processor with built-in power (2-4 A), an external power module (3-8 A), or a dedicated external power supply (6.5-16 A). -
Can I use both a power module and external supply?
+No, it is not recommended to use both simultaneously as this can cause electrical conflicts. -
Does the 1771-A4B Series B work with a 1771-SDN module?
+Yes, it is compatible with the 1771-SDN module
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Disclaimer: Amikon Limited sells new and surplus products and develops channels for purchasing such products. Amikon Limited is not an authorized surplus dealer or affiliate for the Manufacturer of this product. The product may have older date codes or be an older series than that available direct from the factory or authorized dealers. Because Amikon Limited is not an authorized distributor of this product, the Original Manufacturer's warranty does not apply. Amikon Limited is not an authorized distributor, dealer, or representative of the products displayed on this website. All product names, trademarks, brands, and logos used on this website are the property of their respective owners. The description, explanation, or sale of products with these names, trademarks, brands, and logos is for identification purposes only and is not intended to indicate any association with or authorization from any rights holder.
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