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About the Allen-Bradley 1771
The Allen-Bradley 1771 is a legacy modular I/O system designed for industrial control and machine automation. Built for reliability in harsh environments, it offers broad I/O module variety and simple integration into older PLC installations, making it a common choice for maintenance, retrofit and spare-parts applications.

Allen Bradley,1771-OW,Selectable Contact Output Module
- Manufacturer: Allen-Bradley
- Model: 1771-OW
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$12 USDGalion, OH
Allen Bradley,1771-OW,Selectable Contact Output Module New Factory Sealed
- Manufacturer: Allen-Bradley
- Model: 1771-OW
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$120 USDGalion, OH
ALLEN BRADLEY,1771-JOD,SOLID STATE RELAY LOT OF 3 NOS
- Manufacturer: Allen-Bradley
- Model: 1771
New in original box, lot of 3. NOS Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the picture...
$25 USDGalion, OH
Allen-Bradley,1771-ID16,Ser A Isolated 120V Ac Input Module NOS
- Manufacturer: Allen-Bradley
- Model: 1771
New in original box, NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make...
$75 USDGalion, OH
Allen Bradley,1771-IFF,Ser A Fast Analog Input Module NOS
- Manufacturer: Allen-Bradley
- Model: 1771
New, box is dirty from storage. NOS. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictu...
$1,200 USDGalion, OH
ALLEN BRADLEY,1771-ASB,SER D REMOTE INPUT/OUTPUT ADAPTER MODULE REFURBISHED
- Manufacturer: Allen-Bradley
- Model: 1771-ASB
Refurbished in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to...
$240 USDGalion, OH
Allen Bradley,1771OG,Output Module NOS
- Manufacturer: Allen-Bradley
- Model: 1771
New unused in original box. NOS, Box SN and Module SN match. Please see pictures for all details. Please check out our store to view additional listings. We hope to deal with you very soon! Room 2 Section H Row 1
$90 USDGalion, OH
ALLEN BRADLEY,1771-P4S PLC,POWER SUPPLY MODULE NOS
- Manufacturer: Allen-Bradley
- Model: 1771
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$68 USDGalion, OH
ALLEN BRADLEY,1771-DMC4/A,CONTROL COPROCESSOR
- Manufacturer: Allen-Bradley
- Model: 1771
Used in good condition. Part was pulled from operation upon factory shutdown and has been in storage since. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multi...
$80 USDGalion, OH
ALLEN BRADLEY,1771-OZL,OUTPUT MODULE NOS
- Manufacturer: Allen-Bradley
- Model: 1771
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$100 USDGalion, OH
Allen-Bradley,1771-0A,Ser B Output Module NOS
- Manufacturer: Allen-Bradley
- Model: 1771
New, never used. NOS Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make sure...
$60 USDGalion, OH
Allen Bradley,1771-DB,Basic Module REV A/D
- Manufacturer: Allen-Bradley
- Model: 1771
Used and in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to ma...
$48 USDGalion, OH
ALLEN BRADLEY,1771-P7,SER B POWER SUPPLY MODULE 16A 120/220V
- Manufacturer: Allen-Bradley
- Model: 1771
Used in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make s...
$32 USDGalion, OH
ALLEN BRADLEY,1771-P7,SER B POWER SUPPLY MODULE 120/220V
- Manufacturer: Allen-Bradley
- Model: 1771
Used in good condition. Please see pictures for details and condition. You will receive what’s in the pictures. If we have multiples of the same item, the pictures may differ. Please review the pictures to make s...
$36 USDGalion, OH
ALLEN BRADLEY,1771-AL,I/O ADAPTER MODULE LOT OF 2
- Manufacturer: Allen-Bradley
- Model: 1771
What's Included? See photos. We try our best to provide full details of each item and any included accessories, but if it's not shown in the photos then it will not be included with the item. 30-Day Easy Returns ...
$36 USDGalion, OH
Allen-Bradley 1771-ODD Programmable Logic Controllers (PLC)
- Manufacturer: Allen-Bradley
- Model: 1771-ODD
Good condition Allen-Bradley 1771-ODD Programmable Logic Controllers (PLC)s. Located in USA and other countries. Click request price for more information.
USA

