1746-P4 Allen-Bradley Power Supply

Allen-Bradley 1746-P4 SLC 500 Power Supply Module

Core Technical Specifications

• Brand: Allen-Bradley
• Model: 1746-P4
• Series & Type: SLC 500 Power Supply Module
• Input Voltage: Wide range from 85-132V AC / 170-250V AC.
• Input Frequency: Works with 47-63 Hz line frequency.
• Output Power: Provides up to 92 Watts of total power.
• Backplane Current: Supplies 10.0A at 5V DC and 2.88A at 24V DC internally.
• Hold-Up Time: 20 ms at full load to maintain processor operation during brief power dips.
• 24V DC Output: An auxiliary output in the range of 18-30V DC for external devices.

Key Features & Operation

• The 1746-P4 powers all modules installed in a local or expansion 1746 chassis.
• Its wide input voltage range supports various international power standards.
• The built-in hold-up time feature helps prevent processor shutdowns during short power interruptions.
• It includes fuse protection, requiring a 1746-F1 or equivalent fuse for safety.
• The auxiliary 24V DC output is useful for powering sensors or other low-power devices.
• For safety, avoid using the 24V output to power I/O modules to simplify system troubleshooting.

FAQ - Frequently Asked Questions

• Q: What is the main purpose of the 1746-P4?
  A: Its primary job is to provide stable 5V and 24V DC power to the SLC 500 chassis backplane, making all installed modules operational.
• Q: Can I use the 24V DC output to power my output modules?
  A: It is not recommended. Using it for I/O modules complicates troubleshooting, as shutting off the main supply would stop the entire rack.
• Q: What does "hold-up time" mean?
  A: It's the time the power supply can maintain output voltage after an AC input failure, allowing the processor to continue running briefly (20ms at full load for the 1746-P4).
• Q: Do you have the 1746-P4 in stock?
  A: Yes, we typically maintain stock for immediate shipment.
• Q: What is your shipping policy?
  A: We ship within 5 business days via reliable carriers like DHL, FedEx, or UPS.
• Q: What is your return policy?
  A: We offer a 30-day return policy for your confidence and satisfaction.

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Contact for Inquiries: sales@nex-auto.com | +86 153 9242 9628