Product Details
Product Overview
The 1492-MUA4-A13-A17 functions as a specialized Conversion Mounting Assembly designed to bridge the gap between legacy and modern control architectures. This hardware facilitates the migration from PLC-5 (1771 series) systems to the high-performance ControlLogix (1756 series) platform. Specifically, it allows engineers to mount a 1756-A13 or 1756-A17 chassis into the existing footprint of a 1771-A4B chassis. We supply this assembly as 100% Brand New original equipment, providing a robust mechanical foundation for facility upgrades without the need for intensive panel drilling or rewiring.
Technical Specifications
The 1492-MUA4-A13-A17 provides precise mechanical alignment for mission-critical I/O conversion:
| Parameter | Specification |
| Manufacturer | Allen-Bradley / Rockwell Automation |
| Part Number | 1492-MUA4-A13-A17 |
| Legacy Chassis Target | 1771-A4B (PLC-5) |
| Modern Chassis Support | 1756-A13 or 1756-A17 (ControlLogix) |
| Function | Mechanical Mounting & Conversion |
| Weight | 5.42 lbs (2.46 kg) |
| Material | Heavy-duty Industrial Grade Steel/Alloy |
| Application | I/O Modernization and Retrofitting |
Engineering Advantages
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Eliminates Panel Reconstruction: This assembly utilizes the existing mounting holes of the legacy 1771-A4B chassis. This eliminates the requirement for drilling, tapping, or metalwork within an active control cabinet, significantly reducing mechanical installation time.
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Streamlined Migration Path: By providing a direct mechanical interface between PLC-5 and ControlLogix hardware, this kit simplifies the transition to modern EtherNet/IP communication while maintaining the physical integrity of the original enclosure.
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Robust Structural Support: The 5.42 lb steel construction provides rigid support for fully populated 13-slot or 17-slot ControlLogix chassis. It ensures that the weight of the new modules does not compromise the mounting surface during high-vibration operation.
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Precision Alignment: The mounting plate aligns the new 1756 chassis perfectly with existing I/O conversion modules. This precision ensures that swing-arm adapters and wiring harnesses seat correctly, preventing intermittent signal loss.
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Reduces Downtime: The "bolt-on" nature of the 1492-MUA4-A13-A17 allows maintenance teams to execute hardware swaps during short planned outages, avoiding the extended downtime associated with complete panel rebuilds.
Installation & Integration Notes
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Chassis Removal: Remove the legacy 1771-A4B chassis while retaining the original mounting bolts.
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Assembly Placement: Position the 1492-MUA4-A13-A17 plate onto the existing mounting holes. Secure the plate using the retained hardware.
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ControlLogix Mounting: Attach the new 1756-A13 or 1756-A17 chassis to the conversion assembly. Ensure all mounting screws achieve the specified torque to maintain grounding integrity.
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Wiring Harness Clearance: Verify that the depth of the new assembly allows sufficient clearance for existing cable ducts and swing-arm adapters.
FAQs
Q: Can this assembly support a 1756-A10 chassis?
A: No. The 1492-MUA4-A13-A17 features specific hole patterns designed for the dimensions of the 1756-A13 and 1756-A17 chassis. Using a smaller chassis may result in misalignment with I/O conversion modules.
Q: Does this kit include the electrical I/O conversion modules?
A: This part number refers strictly to the mechanical mounting assembly. You must purchase the 1492 conversion modules and wiring cables separately to complete the electrical transition from PLC-5 to ControlLogix.
Q: What is the primary benefit of upgrading from the 1771-A4B?
A: The 1771-A4B is a legacy PLC-5 chassis. Migrating to the 1756 series via the 1492-MUA4-A13-A17 allows you to utilize modern Logix controllers, integrated motion, and EtherNet/IP connectivity without replacing the existing field wiring.
Q: Is the assembly corrosion-resistant?
A: Yes. Allen-Bradley manufactures these conversion plates with industrial coatings to resist the oxidation and chemical exposure typical of factory floor environments.
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
Evolving SCADA System Architectures in Industrial Automation
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Choosing the Right Controller: PLC vs. Motion Controller in Industrial Automation
Selecting the optimal control architecture is a foundational decision in industrial automation. Engineers must frequently choose between a Programmable Logic Controller (PLC) and a dedicated Motion Controller. While both systems manage machinery, their underlying design philosophies differ significantly, impacting performance, scalability, and system integration.
Mastering PLC Power Supply Architectures and Operating Voltages
Selecting the correct operating voltage is a critical step in designing reliable industrial automation systems. Whether you are working with a compact PLC or a large-scale DCS, your power architecture dictates the system's longevity. In this guide, we explore the standard voltage ranges and power distribution strategies required to maintain stable factory automation operations.