1771-A4B

Rated 4.3 with 6 reviews

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply 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 DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

Rockwell Disclaimer: The product is used surplus. DO Supply 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 DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.


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1771-A4B

Revisions: Ser A Ser B 
Description: The Allen-Bradley 1771-A4B is a universal I/O chassis. This hardware is a Sixteen (16) slot chassis that is used to provide backplane connectivity and house 1771 PLC modules. It provides a maximum backplane Current of 24 A and designed for panel installation. It has an overall weight of 7.3 Kgs or 16 lbs.
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Description: The Allen-Bradley 1771-A4B is a universal I/O chassis. This hardware is a Sixteen (16) slot chassis that is used to provide backplane connectivity and house 1771 PLC modules. It provides a maximum backplane Current of 24 A and designed for panel installation. It has an overall weight of 7.3 Kgs or 16 lbs.

DO Supply is NOT an authorized distributor for this manufacturer and therefore the manufacturer’s warranty does not apply. Product comes with DO Supply's 1-year warranty

Rockwell Disclaimer: The product is used surplus. DO Supply 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 DO Supply is not an authorized distributor of this product, the Original Manufacturer’s warranty does not apply. While many Allen-Bradley PLC products will have firmware already installed, DO Supply makes no representation as to whether a PLC product will or will not have firmware and, if it does have firmware, whether the firmware is the revision level that you need for your application. DO Supply also makes no representations as to your ability or right to download or otherwise obtain firmware for the product from Rockwell, its distributors, or any other source. DO Supply also makes no representations as to your right to install any such firmware on the product. DO Supply will not obtain or supply firmware on your behalf. It is your obligation to comply with the terms of any End-User License Agreement or similar document related to obtaining or installing firmware.

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Revisions: Ser A Ser B 

Warranty: 1 year DO Supply Warranty Included
Shipping: Worldwide shipping via UPS, DHL, and TNT
Repairs: We offer repair service for the 1771-A4B.
Exchange: Exchange credit for your defective unit available.
Conditions: We sell preowned surplus and refurbished parts.

To speak to a sales representative for pricing & lead time:


Rated 4.3 with 6 reviews

    Technical Specifications for 1771-A4B

Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Vibration2 g (at 10-500 Hertz)
Nonoperating Shock30 g
Operating Shock15 g
Enclosure TypeOpen Style
Mount TypeBack Panel
Max Backplane Current (at 5 Volts DC)24 Amperes
Number of Module I/O Slots16 Slots
Module TypeI/O Chasis
Part Number/Catalog No.1771-A4B
Weight14.8 lbs (7.7 kg)
LocationStand-Alone
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
BrandAllen-Bradley
ManufacturerRockwell Automation
Relative Humidity5-95% non-condensing
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Vibration2 g (at 10-500 Hertz)
Nonoperating Shock30 g
Operating Shock15 g
Enclosure TypeOpen Style
Mount TypeBack Panel
Max Backplane Current (at 5 Volts DC)24 Amperes
Number of Module I/O Slots16 Slots
Module TypeI/O Chasis
Part Number/Catalog No.1771-A4B
Weight14.8 lbs (7.7 kg)
LocationStand-Alone
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
BrandAllen-Bradley
ManufacturerRockwell Automation
Relative Humidity5-95% non-condensing
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About 1771-A4B

The Allen-Bradley 1771-A4B is a universal I/O chassis that is part of the 1771 Programmable Logic Controller (PLC) product family. This chassis features Sixteen (16) I/O slots, which hosts the electronic circuitry, specifically the backplane, for distributing power to the attached modules. It also hosts the hinges for field wiring arms.

The 1771-A4B is designed to be operated at a temperature range of 32-140 Degree Fahrenheit or 0-60 Degree Celsius while the hardware’s storage temperature is -40 to 185 Degree Fahrenheit or -40 to 85 Degree Celsius. It has a relative humidity of 5-95% noncondensing. When installing this universal I/O chassis, maintain panel vibration and shock within 2g at 10-500 Hz and 15g, respectively.

The 1771-A4B is capable of receiving power via 1771 processor with integral power supplies that provided 2-4 Amperes, power supply modules with rated output of 3-8 Amperes and external power supplies with output Current of 6.5-16 Amperes. As a general rule, never install an external power supply and a power supply module to the 1771-A4B. This power supply connection is not compatible and will disqualify the hardware configuration.



The 1771-A4B chassis has 16 I/O slots. It has dimensions of 12.4 x 24 x 7.6 in. and weighs 14.8 lbs. For installation in a 1771 PLC-5 system, it uses the back-panel mounting method with adequate spacing and an open enclosure. The chassis backplane has a power supply of 8A at 5V DC.

The 1771-A4B chassis has a universal configuration for chassis mounting and system design because of its own consistent design. 1771 I/O modules are small, flexible, cost-effective, and provide a complete range of digital, analog, and intelligent I/O modules for various applications. I/O modules come with wiring arms and remote termination panels, eliminating the need for disconnecting the wire to replace the module. For troubleshooting and diagnostics, status indicators are present on the front of the modules. For future expansion, it can be easily replaced with a larger chassis. It is intended for use in an industrial environment with a 0 - 60 °. Celsius (32 - 140 deg. Fahrenheit) operating temperature, 5-95 % noncondensing relative humidity, and a 30g operating shock.

FAQ for 1771-A4B

How many I/O slots does the 1771-A4B have?


The 1771-A4B has 16 I/O slots.

What is the maximum backplane current rating of the 1771-A4B?


This 1771-A4B’s maximum backplane Current is 24 Amperes.

What is the supported mounting method of the 1771-A4B?


The 1771-A4B supports Panel mounting.

Technical Description of 1771-A4B

Allen Bradley PLC 5 I/O Chasis, 16 Slots, 24 Amperes, Back Panel Mount Type

Repair Services for 1771-A4B

Type Lead Time Price Action
Repair Service 2-4 weeks $604cartAdd to Cart

Our highly skilled technicians can repair your 1771-A4B. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions for 1771-A4B

Please refer to the manual for more information about the 1771-A4B such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1771-A4B Ser A
1771-A4B/A, Series A, Rev A Request Quote
1771-A4B Ser B
1771-A4B/B, Series B, Rev B Request Quote
Common misspellings:
  • l771-A4B
  • 177l-A4B
  • 1771-AAB
  • 1771-A48
  • 1771A4B

Reviews for 1771-A4B

Internal Review

"The 1771-A4B is a universal I/O chassis that is part of the 1771 product bulletin. This chassis has the highest number of chassis as it features Sixteen (16) I/O slots. With the number of slots, it can be used for larger control systems however, this hardware occupies more panel space. " -DO Supply Tech

Dimensions For 1771-A4B

Size
Input Type
Panel Cutout Height in mm
Panel Cutout Width in mm
Terminal Height in mm
Terminal Width in mm
Terminal Overall Depth in mm
Terminal Mounted Depth in mm

Dimensions For 1771-A4B

Resolutions For 1771-A4B

About

Technical Specifications for 1771-A4B

Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Vibration2 g (at 10-500 Hertz)
Nonoperating Shock30 g
Operating Shock15 g
Enclosure TypeOpen Style
Mount TypeBack Panel
Max Backplane Current (at 5 Volts DC)24 Amperes
Number of Module I/O Slots16 Slots
Module TypeI/O Chasis
Part Number/Catalog No.1771-A4B
Weight14.8 lbs (7.7 kg)
LocationStand-Alone
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
BrandAllen-Bradley
ManufacturerRockwell Automation
Relative Humidity5-95% non-condensing
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
Vibration2 g (at 10-500 Hertz)
Nonoperating Shock30 g
Operating Shock15 g
Enclosure TypeOpen Style
Mount TypeBack Panel
Max Backplane Current (at 5 Volts DC)24 Amperes
Number of Module I/O Slots16 Slots
Module TypeI/O Chasis
Part Number/Catalog No.1771-A4B
Weight14.8 lbs (7.7 kg)
LocationStand-Alone
Dimensions3.5 x 6.5 x 2.0 in (89 x 165 x 51 mm)
BrandAllen-Bradley
ManufacturerRockwell Automation
Relative Humidity5-95% non-condensing

About 1771-A4B

The Allen-Bradley 1771-A4B is a universal I/O chassis that is part of the 1771 Programmable Logic Controller (PLC) product family. This chassis features Sixteen (16) I/O slots, which hosts the electronic circuitry, specifically the backplane, for distributing power to the attached modules. It also hosts the hinges for field wiring arms.

The 1771-A4B is designed to be operated at a temperature range of 32-140 Degree Fahrenheit or 0-60 Degree Celsius while the hardware’s storage temperature is -40 to 185 Degree Fahrenheit or -40 to 85 Degree Celsius. It has a relative humidity of 5-95% noncondensing. When installing this universal I/O chassis, maintain panel vibration and shock within 2g at 10-500 Hz and 15g, respectively.

The 1771-A4B is capable of receiving power via 1771 processor with integral power supplies that provided 2-4 Amperes, power supply modules with rated output of 3-8 Amperes and external power supplies with output Current of 6.5-16 Amperes. As a general rule, never install an external power supply and a power supply module to the 1771-A4B. This power supply connection is not compatible and will disqualify the hardware configuration.



The 1771-A4B chassis has 16 I/O slots. It has dimensions of 12.4 x 24 x 7.6 in. and weighs 14.8 lbs. For installation in a 1771 PLC-5 system, it uses the back-panel mounting method with adequate spacing and an open enclosure. The chassis backplane has a power supply of 8A at 5V DC.

The 1771-A4B chassis has a universal configuration for chassis mounting and system design because of its own consistent design. 1771 I/O modules are small, flexible, cost-effective, and provide a complete range of digital, analog, and intelligent I/O modules for various applications. I/O modules come with wiring arms and remote termination panels, eliminating the need for disconnecting the wire to replace the module. For troubleshooting and diagnostics, status indicators are present on the front of the modules. For future expansion, it can be easily replaced with a larger chassis. It is intended for use in an industrial environment with a 0 - 60 °. Celsius (32 - 140 deg. Fahrenheit) operating temperature, 5-95 % noncondensing relative humidity, and a 30g operating shock.

FAQ for 1771-A4B

How many I/O slots does the 1771-A4B have?


The 1771-A4B has 16 I/O slots.

What is the maximum backplane current rating of the 1771-A4B?


This 1771-A4B’s maximum backplane Current is 24 Amperes.

What is the supported mounting method of the 1771-A4B?


The 1771-A4B supports Panel mounting.

Technical Description of 1771-A4B

Allen Bradley PLC 5 I/O Chasis, 16 Slots, 24 Amperes, Back Panel Mount Type
Repairs
Type Lead Time Price Action
Repair Service 2-4 weeks $604cartAdd to Cart

Our highly skilled technicians can repair your 1771-A4B. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Type Lead Time Price Action
Repair Service 2-4 weeks $604cartAdd to Cart

Our highly skilled technicians can repair your 1771-A4B. All of our repairs come with a 1 Year DO Supply Warranty. Please contact us for additional information about our repair process.

Revisions

Please refer to the manual for more information about the 1771-A4B such as the wiring diagrams, data sheets and migration or obsolescence details.

Revision Part # Also Known as Availability
1771-A4B Ser A
1771-A4B/A, Series A, Rev A Request Quote
1771-A4B Ser B
1771-A4B/B, Series B, Rev B Request Quote

Common misspellings:
  • l771-A4B
  • 177l-A4B
  • 1771-AAB
  • 1771-A48
  • 1771A4B
PDF
Reviews

Reviews for 1771-A4B

Internal Review

"The 1771-A4B is a universal I/O chassis that is part of the 1771 product bulletin. This chassis has the highest number of chassis as it features Sixteen (16) I/O slots. With the number of slots, it can be used for larger control systems however, this hardware occupies more panel space. " -DO Supply Tech