Product Details
Product Overview
The Allen Bradley 1756-L73SK functions as a high-performance GuardLogix safety controller within the ControlLogix 5570 family. This module provides a dual-processor solution to manage both standard and safety-related functions simultaneously. Engineers deploy this specific "K" version—which features conformal coating—to maintain system integrity in harsh environments where moisture or chemical contaminants threaten standard electronics. It delivers SIL 3 and PLe (Performance Level e) safety ratings, making it a critical component for high-risk industrial machinery and automated processes.
Technical Specifications
| Feature | Specification Details |
| Manufacturer | Allen Bradley / Rockwell Automation |
| User Memory | 8 MB |
| Safety I/O Memory | 0.98 MB |
| Maximum Digital I/O | 128,000 |
| Maximum Analog I/O | 4,000 |
| Current Draw (5.1V DC) | 800 mA |
| Power Dissipation | 2.5 Watts |
| Isolation Voltage | 30V (Continuous) |
| Weight | 0.91 kg (2.00 lbs) |
| Condition | 100% Brand New Original |
Engineering Advantages
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Environmental Resilience: The conformal coating on the 1756-L73SK protects internal circuitry against salt spray, humidity, and corrosive vapors. This eliminates the need for expensive specialized enclosures in many industrial settings.
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High-Density Control: With a capacity of 128,000 total I/O points, this controller manages massive architectural footprints from a single chassis, reducing the hardware overhead for large-scale factory deployments.
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Streamlined Safety Integration: It utilizes the Studio 5000 environment to manage both safety and standard logic. This unified programming approach slashes development time and simplifies troubleshooting compared to split-system architectures.
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Efficient Power Management: Drawing only 5mA at 1.2V DC and dissipating just 2.5 Watts, the module minimizes heat buildup within the ControlLogix chassis, extending the lifespan of adjacent modules.
FAQs
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Does the 1756-L73SK require a separate safety partner module?
Yes. As part of the GuardLogix 5570 series, the 1756-L73SK requires a 1756-L7SP safety partner to achieve its rated safety integrity levels.
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What is the primary difference between the 1756-L73S and the 1756-L73SK?
The "K" suffix designates a conformal coating. While both share identical logical specifications and 8MB memory, the 1756-L73SK offers superior protection against atmospheric contaminants and harsh industrial climates.
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Is this product provided in its original packaging?
We supply this unit as 100% Brand New in original factory packaging to ensure E-E-A-T compliance and guaranteed hardware longevity for your critical safety systems.
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Can I use this controller for motion control applications?
Absolutely. The 1756-L73SK supports Integrated Motion on EtherNet/IP, allowing you to synchronize safety logic with complex motion profiles in a single controller.
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
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