The Allen-Bradley 1771-PS7 is a stand-alone 120-220V AC Auxiliary Power Supply with a nominal input current/voltage of 2A at 120V AC and 1A at 220V AC. It has a frequency range of 4763Hz and an input voltage range of 97132V AC (120V) and 195264V AC (240V). Its backplane output is rated +5V DC at 16 A. The 1771-PS7 is part of the 1771 Power Supply series and it is compatible with PLC-5 Programmable Controllers and 1771 Control Systems. Before connecting the External 1771-PS7 Auxiliary Power Supply to the backplane, mount the I/O chassis first. Set the configuration jumper to the N position, since the supply is stand-alone. It has a D-sub connector that provides power to the backplane. To avoid power supply overloading; limit the backplane power to 80W, or the user power to 65W, or limit the total system power (add backplane + user) to 100W. The 1771-PS7 Module can be attached to the I/O chassis or mounted separately. When attaching to the panel-mounted chassis, make sure the mounting plate taper pins and supply receiving holes are aligned. Push until the power supply plug is fully inserted into the chassis receptacle. The 1771-PS7 can only be mounted next to or above the chassis. This arrangement allows convection cooling FOR both devices.
Features
1. High reliability industrial power design
Core advantages of 1771-PS7 power module:
- Dual redundant input design (supports automatic switching)
- 85-264VAC wide voltage input range (47-63Hz)
- UL508/EN61800 certified
- Typical application: power supply for key process control systems
2. Intelligent power management function
Advanced power features of this module:
- Real-time load monitoring (0-100% accuracy ±1%)
- Programmable overload protection curve
- Support hot-swap replacement (live maintenance)
- Typical application: continuous production line power guarantee
3. Enhanced system protection mechanism
Safety protection features of 1771-PS7:
- Triple filtering circuit (EMC complies with EN61800-3 standard)
- Surge protection (6kV/3kA)
- Temperature adaptive fan control
- Typical application: harsh electrical environment application
Technical specifications
| Manufacturer | Rockwell Automation |
| Brand | Allen-Bradley |
| Part Number/Catalog No. | 1771-PS7 |
| Module Type | Power Supply |
| Nom Input Voltage | 120 or 220 Volts AC |
| Input Voltage Range | 97-132 or 195-264 Volts AC |
| Max Real Input Power | 171 Watts |
| Max Apparent Input Power | 257 VA |
| Max Xformer Load | 427 VA |
| User Output Current | 8 Amps (at 5 V dc), 2 Amps (at +/- 15 V dc), 2.5 Amps (at 24 V dc) |
| Backplane Output Current | 16 Amperes (at 5 Volts DC) |
| Frequency | 47-63 Hertz |
| Fuse | 3 Amperes, 250 Volts, Normal-Blow |
| Cabling | 1771-PSCC Remote 5.5 ft |
| Paralleled | N/A |
| Location | Stand-Alone |
| Dimensions | 4.5 x 12.4 x 6.3 in (115 x 317 x 160 mm) |
About us?
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To do this, we want to have the best value proposition for our customers to ensure we deliver outstanding financial performance. Maintain and build strong relationships with our suppliers and equip all of our people with the right tools, training, and support that they need to be successful. With all of this, we also want to remain humble and know when and how we can do better.
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Quality Assurance: Verified products with a 1-year warranty.
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Contact Details
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Email: sales7@apterpower.com
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