Product Details
Overview
The Allen-Bradley 1734-OB4E is a POINT I/O 4-channel protected output module designed for compact distributed I/O systems. It provides efficient, space-saving control of DC loads and is optimized for use in applications requiring high reliability, modularity, and easy field wiring. This module delivers robust sourcing outputs, onboard protection, and stable performance in demanding industrial environments.
Key Features
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Supports four non-isolated sourcing outputs organized into one group
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Designed for 24V DC nominal operation, with voltage tolerance from 10V to 28.8V DC
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Integrated protection against short circuits and overload conditions
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Low on-state voltage drop (≤0.2V DC) for energy-efficient operation
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Compact form factor suitable for POINT I/O backplanes and distributed control systems
Technical Specifications
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Manufacturer: Allen-Bradley / Rockwell Automation
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Model Number: 1734-OB4E
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Product Type: POINT I/O Protected Output Module
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Number of Outputs: 4 sourcing (1 group of 4)
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Rated Voltage: 24V DC nominal (10V–28.8V DC range)
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On-State Voltage Drop (Max): 0.2V DC
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Output Current: 1.0 A per output; total module current ≤3.0 A
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Surge Current: 2 A for 10 ms, repeatable every 3 s
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POINTBus Current Draw: 75 mA @ 5V DC
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Power Dissipation (Max): 1.2 W
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Thermal Dissipation: 4.1 BTU/hr @ 28.8V DC
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Isolation Voltage: 50V continuous (reinforced insulation, tested at 2500V DC for 60 s)
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External Power Supply: 24V DC nominal
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Mounting Base: 1734-TB or 1734-TBS terminal base assemblies
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Torque Rating: 0.8 Nm (7 lb-in)
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Keyswitch Position: 1
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Dimensions (H×W×D): 7.55 × 1.2 × 5.6 cm
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Weight: Approx. 60 g
Performance and Design
The module features advanced short-circuit protection and thermal management to prevent field device damage. Its compact design supports easy installation and wiring within control cabinets while maintaining compatibility with the POINT I/O platform.
Applications
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Machine control and automation panels
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Packaging and material handling equipment
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Distributed I/O systems in process automation
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Energy and building management control systems
FAQ
Q1: What type of output configuration does the 1734-OB4E use?
A1: The module uses four non-isolated sourcing DC outputs grouped into a single channel block.
Q2: What kind of protection does it include?
A2: It features built-in short-circuit and overcurrent protection, ensuring long-term reliability.
Q3: What terminal base is compatible with this module?
A3: It can be installed on 1734-TB or 1734-TBS base assemblies.
Q4: What is the maximum total current per module?
A4: The total current must not exceed 3.0 A across all outputs.
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
PLC vs. HMI: Distinguishing the Brain from the Interface in Industrial Automation
In the realm of industrial automation, distinguishing between a Programmable Logic Controller (PLC) and a Human-Machine Interface (HMI) is fundamental. While both devices work in tandem, they serve distinct purposes. The PLC acts as the "brain" of the operation, executing logic, whereas the HMI serves as the "eyes," allowing operators to monitor and interact with the system. Understanding this synergy is essential for any professional designing robust factory automation solutions.
Selecting the Right Industrial Automation Solution for Modern Manufacturing
Choosing an effective industrial automation system starts with a thorough process audit. You must identify tasks that are repetitive, labor-intensive, or prone to human error. Not every process requires high-level automation; therefore, prioritize operations that directly impact throughput and quality. By scoping your needs accurately, you avoid over-investing in unnecessary technology. A balanced approach ensures that your capital expenditure aligns with measurable gains in operational efficiency.
Implementing FIFO and LIFO Data Sequencing in PLC Programming
Data management serves as a cornerstone of modern industrial automation. Whether tracking materials on a conveyor or managing batch sequences in a process, engineers frequently rely on sequential logic. Two primary structures—First-In-First-Out (FIFO) and Last-In-First-Out (LIFO)—form the bedrock of this data handling. Mastering these blocks allows programmers to optimize complex machine operations efficiently.