1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis
1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis
1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis
    1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis
1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis

1771-P7 | Allen-Bradley Power Supply 16A 120/220V AC for 1771 I/O Chassis

Part #: 1771-P7 Manufactured by: Allen-Bradley
$662.00
$662.00
4 in Stock
Condition: New-Surplus Original Box
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Product Overview
Allen Bradley PLC 5 Power Supply, 120 or 220 Volts AC Nom Input Voltage, 97-132 or 195-264 Volts AC Input Voltage Range, 1...  Read more
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Product Description P/N: 1771-P7

Description / Specifications

Description 

The Allen-Bradley 1771-P7 is a PLC5 Power Supply module. This module is used to power One (1) 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis installed with an adapter module. This power supply also supports Mini-PLC-2/02, Mini-PLC-2/05, Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5 Programmable Logic Controllers. The module’s nominal input voltage of 120VAC at 2.0A and 220 VAC at 1.0A. It has a maximum Real Input Power of 108 W.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-P7
Input Voltage Range 97-132 or 195-264 Volts AC
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Location Stand-Alone
Module Type Power Supply
Nom Input Voltage 120 or 220 Volts AC
Cabling 1771-CP1 Local, 1771-CP2 Remote 5 ft, and 1771-CP3 Remote 5 ft
Max Real Input Power 108 Watts
Max Apparent Input Power 176 VA Max
Backplane Output Current 16 Amperes (at 5 Volts DC)
Frequency 47-63 Hertz
Fuse 3 Amperes, 250 Volts, Normal-Blow
Max Xformer Load 270 VA

  

 

Information About 1771-P7

The 1771-P7 is an Allen-Bradley power Supply that belongs to the 1771 Product category. This Power Supply unit is used with 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O when used with 771 Adapter module and mini-PLC-2/02, Mini-PLC-2/05, Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5 Programmable Logic Controllers.

This power supply is an stand-alone power supply which means that it cannot be used in parallel with any power supply. Never attempt to install this power supply in this configuration as it may result to controller data loss as well as cause unwanted operation that may pose potential safety risk and unwanted operation stoppage.

This power supply is equipped with a D-Shell power connector that is used to connect to the PLC5 backplane for power distribution. Specific cables compatible with this power supply include 1771-CP2 used with 1771-A3B, 1771-CP1 and 1771-CP3 used with 1771-A1B, 1771-A2B, 1771-A3B1 or 1771-A4B.

When using the 1771-CP2, the power supply module must be within 1.52m or 5ft of the I/O chassis; 1771-CP1 requires within 0.32m or 1.04ftor on the left-side of the I/O chassis while 1771-CP3 requires a maximum distance of 1.68m (5.5ft) of the I/O chassis to mount and connect the 1771 Power Supply.

Safety precautions needed to observe when installing this power supply includes prevention of electrostatic discharge and installation without power. Electrostatic discharge may degrade or shorten the expected lifespan of the module. When installing the module, ensure that surfaces used to temporary place the module are grounded. Installation personnel must prevent touching the electronic components. Do not install the module while system is actively supplied by power as this may produce electrical arcs which may damage the pins, nearby electronic devices and the backplane iyself.

The Allen-Bradley 1771-P7 is a stand-alone 16A AC Power Supply. It comes with input voltage/current of 120V AC at 2.0A, 220V AC at 1.0A. The 1771-P7 has a real/apparent input power of 108 Watts/176VA with a frequency range of 4763Hz. Its maximum output current is 16A max at 5V DC and its output voltage is 5.06V.

The 1771-P7 Power Supply is an external power supply. Before installing, set the configuration jumper on the I/O chassis to the N position. It can be attached to a panel-mounted I/O chassis by sliding it onto the left side. If mounted separately, it requires a minimum vertical distance of 6 inches. Take note to mount above or next to the chassis only, to allow convection cooling. The 1771-P7 can power one 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis when used with an adapter or programmable controller that does not have an internal power supply. It works with the PLC-5 family of processors and Mini-PLC-2 /02, /05, /16, and /17. This is not compatible with the 1771-A1, -A2, or -A4 I/O chassis. And it is not designed for parallel connection as this may result in damage due to unexpected machine operation or processor memory loss.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

Frequently Asked Questions about 1771-P7
Question: What is the 1771-P7?
Date Update:13/06/2025
Answer:

The 1771-P7 is an AC power supply module designed to provide power to PLC-5 I/O modules in an industrial control system. It is part of the Allen-Bradley 1771 I/O system and ensures that the I/O modules receive the necessary power for proper operation.

Question: What are the specifications for the 1771-P7?
Date Update:13/06/2025
Answer:

Here are the key specifications for the 1771-P7 power supply module:

  • Input Voltage: AC 120V (±10%).
  • Output Voltage: 5V DC output for powering the PLC-5 I/O modules.
  • Output Current: The power supply can provide up to 7.5A of current for the I/O modules.
  • Power Consumption: Typically rated for about 50W to 100W, depending on the number of I/O modules connected.
  • Operating Temperature: 0°C to 60°C (32°F to 140°F).
  • Mounting: The 1771-P7 is designed to be installed in a 1771 I/O rack, typically within a PLC-5 system.

For more detailed specifications, please refer to the product manual or datasheet.

Question: How do I wire the 1771-P7 power supply module?
Date Update:13/06/2025
Answer:

Wiring the 1771-P7 involves connecting the 120V AC power to the power supply module, which in turn powers the PLC-5 I/O modules. Here’s the basic wiring guide:

1. AC Input Connections:

  • Connect the 120V AC input (L1 and L2) to the AC input terminals of the 1771-P7 power supply module.
  • Neutral (N) should be connected to the neutral input terminal (if applicable).
  • Grounding: Proper grounding of the power supply is crucial for safe operation. Connect the ground terminal of the 1771-P7 to the system ground.

2. DC Output Connections:

  • The 5V DC output from the 1771-P7 will be connected to the 1771 I/O modules within the rack.
  • The power supply provides 5V DC to the backplane of the 1771 I/O system.

Always refer to the wiring diagram in the manual for specific terminal locations and configuration.

Question: Can I use the 1771-P7 with other Allen-Bradley PLC systems?
Date Update:13/06/2025
Answer:

The 1771-P7 power supply module is specifically designed for use with the PLC-5 series and is not directly compatible with other Allen-Bradley PLC systems. It is intended to be used with 1771 I/O modules in a PLC-5 rack. If you are using a different PLC series (e.g., ControlLogix or CompactLogix), you will need a different power supply that is compatible with those systems.

Question: Is the 1771-P7 suitable for use in outdoor environments?
Date Update:13/06/2025
Answer:

No, the 1771-P7 power supply is designed for indoor use only. It is rated for industrial environments but should be installed in a protected, climate-controlled environment to ensure reliable operation. If used in harsh environments (e.g., outdoor conditions, high humidity), the power supply should be placed in a suitable enclosure to protect it from environmental factors.

IQElectro is not an authorized distributor.
QElectro LLC (IQElectro) is NOT an Authorized Distributor or in any way affiliated with Rockwell Automation, Siemens, or any other Manufacturers. IQElectro is NOT an Authorized Dealer of this product. The product may be of older version, date codes, or design than that available from authorized dealers. As IQElectro is not an authorized dealer of this product, the Original Manufacturer's Warranty and Support DO NOT apply. IQElectro sells SURPLUS only and DOES NOT SELL SOFTWARE or FIRMWARE licenses For more detailed information, please refer to the full version of our disclaimer policy Disclaimer Policy.
Description / Specifications

Description 

The Allen-Bradley 1771-P7 is a PLC5 Power Supply module. This module is used to power One (1) 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis installed with an adapter module. This power supply also supports Mini-PLC-2/02, Mini-PLC-2/05, Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5 Programmable Logic Controllers. The module’s nominal input voltage of 120VAC at 2.0A and 220 VAC at 1.0A. It has a maximum Real Input Power of 108 W.

 

Technical Specifications 

 

Brand Allen-Bradley
Manufacturer Rockwell Automation
Part Number 1771-P7
Input Voltage Range 97-132 or 195-264 Volts AC
Dimensions 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm)
Location Stand-Alone
Module Type Power Supply
Nom Input Voltage 120 or 220 Volts AC
Cabling 1771-CP1 Local, 1771-CP2 Remote 5 ft, and 1771-CP3 Remote 5 ft
Max Real Input Power 108 Watts
Max Apparent Input Power 176 VA Max
Backplane Output Current 16 Amperes (at 5 Volts DC)
Frequency 47-63 Hertz
Fuse 3 Amperes, 250 Volts, Normal-Blow
Max Xformer Load 270 VA

  

 

Information About 1771-P7

The 1771-P7 is an Allen-Bradley power Supply that belongs to the 1771 Product category. This Power Supply unit is used with 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O when used with 771 Adapter module and mini-PLC-2/02, Mini-PLC-2/05, Mini-PLC-2/16, Mini-PLC-2/17, or PLC-5 Programmable Logic Controllers.

This power supply is an stand-alone power supply which means that it cannot be used in parallel with any power supply. Never attempt to install this power supply in this configuration as it may result to controller data loss as well as cause unwanted operation that may pose potential safety risk and unwanted operation stoppage.

This power supply is equipped with a D-Shell power connector that is used to connect to the PLC5 backplane for power distribution. Specific cables compatible with this power supply include 1771-CP2 used with 1771-A3B, 1771-CP1 and 1771-CP3 used with 1771-A1B, 1771-A2B, 1771-A3B1 or 1771-A4B.

When using the 1771-CP2, the power supply module must be within 1.52m or 5ft of the I/O chassis; 1771-CP1 requires within 0.32m or 1.04ftor on the left-side of the I/O chassis while 1771-CP3 requires a maximum distance of 1.68m (5.5ft) of the I/O chassis to mount and connect the 1771 Power Supply.

Safety precautions needed to observe when installing this power supply includes prevention of electrostatic discharge and installation without power. Electrostatic discharge may degrade or shorten the expected lifespan of the module. When installing the module, ensure that surfaces used to temporary place the module are grounded. Installation personnel must prevent touching the electronic components. Do not install the module while system is actively supplied by power as this may produce electrical arcs which may damage the pins, nearby electronic devices and the backplane iyself.

The Allen-Bradley 1771-P7 is a stand-alone 16A AC Power Supply. It comes with input voltage/current of 120V AC at 2.0A, 220V AC at 1.0A. The 1771-P7 has a real/apparent input power of 108 Watts/176VA with a frequency range of 4763Hz. Its maximum output current is 16A max at 5V DC and its output voltage is 5.06V.

The 1771-P7 Power Supply is an external power supply. Before installing, set the configuration jumper on the I/O chassis to the N position. It can be attached to a panel-mounted I/O chassis by sliding it onto the left side. If mounted separately, it requires a minimum vertical distance of 6 inches. Take note to mount above or next to the chassis only, to allow convection cooling. The 1771-P7 can power one 1771-A1B, -A2B, -A3B, -A3B1, or -A4B I/O chassis when used with an adapter or programmable controller that does not have an internal power supply. It works with the PLC-5 family of processors and Mini-PLC-2 /02, /05, /16, and /17. This is not compatible with the 1771-A1, -A2, or -A4 I/O chassis. And it is not designed for parallel connection as this may result in damage due to unexpected machine operation or processor memory loss.



Manufacturer information

Allen-Bradley, a brand of Rockwell Automation, specializes in manufacturing industrial automation equipment. The product range includes programmable logic controllers (PLCs), motion control systems, safety devices, motor control equipment, automation software, and HMI panels. Allen-Bradley products are known for their reliability and integration with other systems.

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