Products Description
| Company Information | |||
| [email protected] | |||
| Mobile | +8613950166376 | ||
| +8613950166376 | |||
| 13950166376 |
Technical Specifications
| Parameter | Specification |
|---|---|
| Product Name | Allen-Bradley 1771-P6S/B Redundant Power Supply Module |
| Product Type | PLC Redundant Power Supply |
| Manufacturer | Rockwell Automation / Allen-Bradley |
| Series | PLC-5 (1771 Series, Revision B) |
| Input Voltage | 194–264 V AC (nominal 220 V AC) |
| Input Frequency | 47–63 Hz |
| Output Voltage | 5 V DC (backplane supply) |
| Backplane Output Current | Up to 8 A @ 5 V DC |
| Input Power | ~56 W (typical operating power) |
| Apparent Power | ~89–92 VA |
| Transformer Load | ~140 VA |
| Redundancy Function | Supports parallel/redundant operation with another P6S unit |
| Parallel Operation | Yes (requires 1771-CT cable for load sharing) |
| Sensing Options | Local / remote sensing selectable |
| Protection Features | Low-voltage shutdown and backplane fault signaling |
| Fuse | 1.5 A, 250 V slow-blow |
| Installation | Single-slot module in 1771 chassis |
| Compatible Chassis | 1771-A1B, A2B, A3B, A3B1, A4B |
| Operating Temperature | 0°C to 60°C |
| Dimensions (L × W × H) | 279 mm × 152 mm × 51 mm |
| Weight | 1.28 kg (approx. 2.8 lbs) |
| Lifecycle Status | Discontinued (legacy PLC-5 system) |
FAQ
FAQ
Q1. What is the 1771-P6S/B used for?
It is used to supply regulated 5 V DC power to a PLC-5 1771 I/O chassis, often in redundant configurations for higher reliability.
Q2. What does the “/B” revision indicate?
It indicates a hardware revision (Series B) with internal design updates while maintaining compatibility with earlier versions.
Q3. Can it operate in redundant mode?
Yes, it supports parallel operation with another identical power supply using a load-sharing cable.
Q4. What input power does it require?
It operates from 194–264 V AC, typically 220 V AC industrial supply.
Q5. What is the output capacity?
It delivers up to 8 A at 5 V DC to the backplane.
Q6. What happens if input voltage drops?
It triggers a low-voltage shutdown signal to protect PLC memory and system integrity.
Q7. What chassis is it compatible with?
It is compatible with 1771-A1B, A2B, A3B, A3B1, and A4B chassis.
Q8. What is its physical size and weight?
Approximately 279 × 152 × 51 mm and about 1.28 kg (2.8 lbs).
Tags
Packing & Delivery
We will use wear-resistant cartons to seal the boxes, and take photos for your confirmation before sealing. We will pack the boxes only after confirmation.
For express delivery, we will use DHL, UPS, TNT, FedEx and EMS.
Please rest assured that we have a deep cooperation with express delivery companies and can ensure that your goods are delivered to you in good condition.
