Product Details
Product Description
The 1756-L55 is a high-performance ControlLogix 5555 controller from Allen-Bradley, designed to provide reliable and precise control for complex automation systems. This open-style module delivers efficient power management, flexible connectivity, and robust thermal performance for industrial applications.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model / Part Number: 1756-L55
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Product Line: ControlLogix 5555
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Module Type: PLC Controller
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Weight: 0.34 kg (0.75 lbs)
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User Memory: None
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Backplane Current: 1.23–1.25 A at 5.1 V DC; 0.014 A at 24 V DC
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Power Dissipation: 5.6–5.7 W
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Thermal Dissipation: 19.1–19.4 BTU/hr
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Isolation Voltage: 30 V continuous
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Enclosure Type: Open-style (no enclosure)
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Battery Included: 1756-BA1
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Operating Temperature: 0–60 °C (32–140 °F)
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Storage Temperature: -40–85 °C (-40–185 °F)
Key Features
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Compact and lightweight open-style controller
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Integrated battery support (1756-BA1) for memory retention
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Efficient thermal and power management for continuous operation
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Compatible with ControlLogix 5555 series chassis
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High reliability with industrial-grade isolation voltage
Applications
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Central controller for ControlLogix automation systems
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Process control, machine automation, and high-speed logic applications
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Suitable for applications requiring precise I/O coordination
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
Redundant Automation Systems: Ensuring Continuous Uptime in Critical Control Infrastructure
System reliability directly determines operational profitability across high stakes process industries. Modern industrial automation platforms must eliminate single points of failure to prevent catastrophic shutdowns. Deploying fault tolerant architecture safeguards complex facilities against unexpected hardware glitches, network disruptions, and maintenance outages.
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.