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
Strategic Selection: Choosing the Right SCADA Software for Your PLC Project
In industrial automation, the SCADA (Supervisory Control and Data Acquisition) system acts as the bridge between raw machine data and actionable human intelligence. Selecting the incorrect software platform can lead to integration bottlenecks, scalability issues, and excessive long-term maintenance costs. As an automation consultant with 15 years of experience, I have guided many projects through the selection process. Below are the essential criteria for choosing a platform that ensures both performance and longevity.
Ensuring Operational Continuity: The Strategic Value of Redundant Automation Systems
In modern industrial landscapes, unplanned downtime is the ultimate adversary. For sectors relying on complex PLC and DCS architectures, a single hardware failure can trigger catastrophic production losses. Therefore, implementing redundant automation systems is no longer a luxury; it is a fundamental requirement for mission-critical operations. In this article, I analyze why redundancy remains the backbone of reliable industrial infrastructure.
Selecting the Right Cables for Industrial Automation: A Comprehensive Guide
Selecting the appropriate cabling infrastructure is critical for the success of any industrial automation project. Improper cable selection often leads to signal degradation, system instability, and costly downtime. As an automation engineer, I frequently see projects compromised by poor cabling choices in harsh industrial environments. This guide simplifies the complex landscape of cabling to help you make informed decisions for your PLC, DCS, and control systems.