Product Details
Overview
The Allen-Bradley 1746-P2 is a compact power supply designed for SLC 500 PLC systems. It delivers stable DC output for both backplane and connected modules, supporting reliable operation across industrial automation environments. Its efficient design provides full load power while maintaining low thermal dissipation.
Technical Specifications
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Model / Part Number: 1746-P2
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Brand: Allen-Bradley
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Product Type: Power Supply Module, SLC 500
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Module Weight: 1.38 lbs (0.62 kg)
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Input Power: 70 Watts
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Input Voltage Range: 120–220 V AC
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Typical Line Power Requirement: 180 VA
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Inrush Current: 20 Amps
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Backplane Current: 5 V DC: 5 A, 24 V DC: 0.46 A
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Internal Current Capacity: 5 A at 5 V DC; 0.96 A at 24 V DC
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Output Voltage Range: 18–30 V DC
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CPU Hold-Up Time: 20 ms at full load, 3000 ms at no load
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Operating Frequency: 47–63 Hz
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Operating Temperature: 0–60 °C
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Fuse Protection: 1746-F1 or equivalent
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Chassis Location: Fits standard 1746 series racks
Applications
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Provides reliable DC power for SLC 500 PLC racks
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Supports multiple I/O modules and backplane circuits
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Ideal for industrial automation, process control, and manufacturing environments
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Compatible with legacy and modern SLC 500 modules
FAQs
Q1: Can this supply power multiple modules simultaneously?
Yes, the 1746-P2 supports full load for typical 1746 series I/O modules.
Q2: What is the hold-up time for the CPU during a power fluctuation?
20 milliseconds at full load and up to 3000 milliseconds when no load is applied.
Q3: What input voltages are supported?
It operates on 120–220 V AC with 47–63 Hz frequency.
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
Understanding Types of Noise in Electronic Circuits and Control Systems
Signal integrity directly determines measurement accuracy and loop stability across industrial automation environments. Electronic noise introduces unwanted stochastic interference into analog loops, sensor feedback lines, and digital fieldbus networks. Understanding how intrinsic electronic noise and external electromagnetic interference manifest allows control engineers to optimize signal conditioning and shield sensitive instrumentation effectively.
Why 24V DC Power Supplies Standardize Modern Industrial Automation
Industrial control cabinets worldwide rely on 24V DC as the universal power standard for field instrumentation, sensors, and controllers. Walk into any manufacturing plant, and you will find PLCs, human-machine interfaces (HMIs), and smart actuators running on extra-low voltage DC. Standardizing on 24V DC enhances operational safety, lowers cabinet footprint, and maintains steady control performance across factory networks.
Essential Motion Control Commands: A Practical Guide for Engineers
Automation engineers often rely on precise position and speed control to drive modern factory machinery. Modern industrial systems, such as Programmable Logic Controllers (PLCs) and Distributed Control Systems (DCS), depend heavily on standardized motion instructions. Mastering these commands ensures operational safety, protects mechanical components, and optimizes cycle times across production lines.