Product Details
Overview
The Allen-Bradley 1794-TB32 is a high-capacity FLEX I/O terminal base designed to accommodate 32 current sinking digital input channels. It delivers reliable signal acquisition and system integration for modular control networks. Compatible with various terminal bases, this unit is engineered to ensure precise, isolated communication between field devices and controllers.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model / Part Number: 1794-TB32
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Product Type: FLEX I/O Digital Input Module / Terminal Base
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Number of Inputs: 32, current sinking
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Recommended Terminal Bases: 1794-TB32, 1794-TB32S, 1794-TB62DS, 1794-TB62EXD4X15
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Nominal Input Impedance: 22.2 kΩ
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Isolation Voltage: 50 V continuous, Basic Insulation; type tested at 2121 V DC for 2 s (field side to system)
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Channel Isolation: No isolation between individual channels
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FlexBus Current: 25 mA @ 5 V DC
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Max Power Dissipation: 6.0 W @ 31.2 V DC
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Max Thermal Dissipation: 20.47 BTU/hr @ 31.2 V DC
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Terminal Base Screw Torque: Determined by installed terminal base
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External DC Supply Voltage: 24 V DC nominal
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Indicators: 32 yellow status LEDs for field side monitoring
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Dimensions (L x W x H): 6.9 × 9.4 × 9.4 cm
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Weight: 2 kg
Applications
Suitable for distributed digital input collection in large-scale automation systems, process control, and remote monitoring. Ideal for use with ControlLogix or CompactLogix networks requiring high-channel density and reliable field communication.
FAQ
Q: How many input channels does 1794-TB32 support?
A: This terminal base accommodates 32 current sinking digital inputs.
Q: Can this unit isolate individual channels?
A: No, individual channels are not isolated; isolation is provided between the field and system side.
Q: Which terminal bases are compatible with this module?
A: Compatible with 1794-TB32, 1794-TB32S, 1794-TB62DS, and 1794-TB62EXD4X15.
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.