Product Details
Product Description
Overview The Allen Bradley SLC 500 series 1746-P3 power supply is designed to deliver stable and efficient DC power to SLC 500 controllers and modules. Installed on the left side of the 1746 chassis, it ensures reliable operation across a wide range of industrial environments.
Key Specifications
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Brand Allen Bradley
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Series SLC 500
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Product Type Power Supply
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Model/Part Number 1746-P3
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Weight 1.31 lbs (0.60 kg)
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Mounting Location Left side of 1746 chassis
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Nominal Input Voltage 24 VDC
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Input Voltage Range 19.2–28.8 VDC
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Input Power 61 W
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Typical Line Power Requirement 90 VA
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Inrush Current 20 A
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Isolation Voltage 600 V AC RMS for 1 second (Version B or later)
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Backplane Current (5 V) 3.6 A
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Backplane Current (24 V) 0.87 A
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Hold-Up Time 5 ms at full load, 1000 ms at no load
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Fuse Protection 1746-F3 or equivalent
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Operating Temperature 0–60 °C (32–140 °F)
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Derating 5% current capacity reduction above 55 °C (131 °F)
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Frequency DC
Application Scenarios The 1746-P3 is ideal for use in compact industrial control systems where stable DC power is critical. It supports SLC 500 controllers in manufacturing automation, process control, and machine-level applications.
FAQ
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Q: What chassis does the 1746-P3 fit into? A: It mounts on the left side of the 1746 chassis.
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Q: How does the module handle power interruptions? A: It provides a hold-up time of 5 ms under full load and up to 1000 ms with no load, ensuring short-term continuity.
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Q: Is fuse protection included? A: The unit requires a 1746-F3 fuse or an equivalent for circuit protection.
Comparison with Similar Models Compared to the 1746-P1 and 1746-P2, the 1746-P3 offers higher current capacity at 5 V and 24 V outputs, making it more suitable for systems with greater module density and higher power demands.
Additional Information
- 100% Genuine Parts: All products are original and authentic, ensuring reliable industrial performance.
- 30-Day Refund Guarantee: Return any in-stock item within 30 days in original, unopened packaging for a full refund (excluding shipping and fees).
- 12-Month Warranty: Covers defects in materials or workmanship; excludes misuse, normal wear, or unauthorized modifications.
- Worldwide Shipping: We ship via USPS, UPS, FedEx, and DHL. Delivery times vary by country and may be subject to customs or import fees.
- Support & Contact: Technical and warranty assistance is available anytime. Contact us here: Contact.
- Purchase Guidance: Check product specifications and compatibility carefully before ordering to ensure proper application.
Tech & Buying Guide
Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.