Product Details
Product Description
The Allen Bradley 1715-A3IO is a three-slot input/output base unit designed for distributed control systems. It provides reliable backplane connectivity, integrated fuse protection, and robust electrical performance for industrial automation environments. With compact dimensions and open-style construction, the module is engineered for efficient installation and dependable operation in demanding applications.
Technical Specifications
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Manufacturer Allen Bradley
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Product Line 1715 Series
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Product Type 3-Slot I/O Base Unit
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Part Number 1715-A3IO
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Wiring Category Category 2 (signal ports)
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Fuse Type 50 mA, 125 V, Type T
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Temperature Code (North America) T4
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Temperature Code (IEC) T4
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Enclosure Type Open-style (no housing)
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Backplane Current 165 mA @ 18–32 V DC
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Field Voltage Slew Rate (Max) 150 V/s
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De-energized Output Voltage Slew Rate (Max) 12 V/ms
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Energized Output Current Slew Rate (Max) 0.9 A/ms
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System Power Dissipation 3.0 W max
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Field Loop Power Dissipation 0.17 W per loop max
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Isolation Voltage 50 V continuous (basic insulation type, I/O ports to backplane)
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Type Test 500 V AC for 60 seconds
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Dimensions (D × W × H) 11.8 cm × 4.2 cm × 16.6 cm
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Weight 0.26 kg
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Shipping Weight 1.5 kg
Application Scenarios
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Distributed control systems requiring modular I/O expansion
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Machine-level automation with compact base units
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Industrial environments needing reliable backplane connectivity and fuse protection
FAQ
Q: What type of fuse does the 1715-A3IO use? A: It uses a 50 mA, 125 V Type T fuse.
Q: Does the module provide isolation between I/O ports? A: No, isolation is provided between I/O ports and the backplane only.
Q: What is the maximum system power dissipation? A: 3.0 W maximum.
Comparable Models
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1715-A3IO: 3-slot I/O base unit (this model)
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1715-A2IO: 2-slot I/O base unit
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1715-A4IO: 4-slot I/O base unit for higher capacity
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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Why Programmable Logic Controllers Drop into Stop Mode: An Expert Analysis
Industrial automation systems rely heavily on Programmable Logic Controllers (PLCs) to maintain uninterrupted production. When a PLC unexpectedly shifts from Run to Stop mode, whole manufacturing lines stall.
As control systems evolve across modern factory automation, understanding the root causes of these interruptions helps engineers minimize costly downtime. This technical guide breaks down why PLCs trip into Stop mode and provides practical strategies to mitigate system faults.
Understanding Root Causes of Unplanned PLC Stop Mode in Industrial Automation
Modern Programmable Logic Controllers manage execution through distinct operational states: Run, Stop, Start-Up, and Hold. During power-up, a controller initializes memory registers within Stop mode before briefly transitioning to Start-Up mode. During this phase, internal self-diagnostics evaluate system integrity across hardware and user programs. If the controller detects no critical faults, it enters Run mode to execute the control program continuously. However, any severe system anomaly forces the CPU back into Stop mode immediately to prevent erratic machine behavior across the plant floor.