Allen-Bradley 1771-P6S/B PLC Redundant Power Supply

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).

1771-P6S/B Allen Bradley

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.

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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.