Product Details
Product Overview
The Allen-Bradley 1746-A7 is a 7-slot modular chassis from the SLC 500 series, designed to house and interconnect processors, power supplies, and I/O modules in industrial automation systems. With support for up to seven modules, this chassis ensures reliable backplane communication and clean power distribution across all installed components. It can be expanded through interconnection cables to support larger configurations, offering flexibility for scalable control system designs. Constructed for panel mounting, the 1746-A7 provides dependable performance in both new and retrofit applications.
Technical Specifications
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Manufacturer: Rockwell Automation
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Brand: Allen-Bradley
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Model Number: 1746-A7
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Series: SLC 500
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Product Type: Modular I/O Chassis
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Slots: 7 slots for modular components
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Expansion Capacity: Up to 21 total modules using interconnection cables (1746-C7, 1746-C9)
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Dimensions (W x H x D): 28.2 × 17.1 × 14.5 cm (11.1 × 6.7 × 5.7 in)
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Approximate Weight: 1.1 kg (2.4 lb)
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Mounting Type: Panel mount with 4 tabs
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Backplane Current:
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5.1 VDC @ 10 A
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24 VDC @ 2.88 A
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Thermal Dissipation: 2.5 BTU/hour at 28.8 VDC
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Operating Temperature: 0°C to +60°C (32°F to 140°F)
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Storage Temperature: -40°C to +85°C (-40°F to 185°F)
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Relative Humidity: 5%–95% (non-condensing)
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Chassis Material: Aluminum with integrated grounding
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Condition: New & Original in factory packaging
Application Scenarios
The Allen-Bradley 1746-A7 chassis is widely used in:
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Distributed and modular control systems using the SLC 500 platform
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Factory automation, packaging lines, and process monitoring systems
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Equipment requiring mid-sized modular expansion capability
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System retrofits where space and scalability are critical
FAQ
Q: What types of modules can be installed in the 1746-A7 chassis?
A: It supports all standard SLC 500 I/O, communication, processor, and specialty modules.
Q: Can this chassis be expanded to accommodate additional modules?
A: Yes, up to three chassis (21 total modules) can be interconnected using 1746-C7 or 1746-C9 cables.
Q: Which power supplies are compatible with this model?
A: Compatible with Allen-Bradley 1746-P1, 1746-P2, and 1746-P4 power supplies.
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
A robust Supervisory Control and Data Acquisition (SCADA) system serves as the heartbeat of modern industrial operations. Understanding SCADA system architecture is vital for engineers designing efficient control systems. These architectures have evolved from isolated, monolithic structures to highly interconnected, networked ecosystems. Choosing the right design requires balancing data visibility, processing power, and long-term scalability requirements.
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.