Product Details
Overview
The Allen-Bradley 1769-OB32 is a 32-point DC output module designed for the Compact I/O system, offering reliable solid-state switching for control and automation applications. It provides high-speed output performance, robust isolation, and flexible installation options for use with CompactLogix and MicroLogix 1500 controllers.
Technical Specifications
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Manufacturer: Allen-Bradley
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Model Number: 1769-OB32
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Product Type: 32-Point DC Output Module
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Output Channels: 32 sourcing outputs (16 points per group)
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Voltage Category: 24 V DC source type
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Operating Voltage Range: 20.4 V DC to 26.4 V DC
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Current Draw (5.1 V Bus): 300 mA typical
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Output Current Rating: 0.5 A per point, 8 A per module maximum (steady-state)
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Surge Current: 2.0 A for 10 ms, repeatable every 2 s
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Isolation Voltage:
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1200 V AC for 1 s or 1697 V DC for 1 s between output point and bus
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75 V DC continuous working voltage (IEC Class 2 reinforced insulation)
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Power Dissipation: 4.5 W maximum at rated load
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Slot Width: 1.5 modules
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Power Supply Compatibility: 1769-PA2, 1769-PB2, 1769-PA4, 1769-PB4
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Power Supply Distance Rating: Up to 6 modules from the power supply
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Wiring Type: Copper conductors, rated 90 °C (194 °F)
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Enclosure Type: Open-style module (requires protective housing)
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Mounting Options: DIN-rail or panel-mounted installation
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Dimensions (H × W × D): 118 mm × 52.5 mm × 87 mm (approx.)
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Weight: Approx. 280 g
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Replacement Terminal Block: 1769-RTBN18 (one per kit)
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Operating Temperature Range: 0 °C to +60 °C (32 °F to 140 °F)
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Storage Temperature Range: −40 °C to +85 °C (−40 °F to 185 °F)
Key Features
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High-Density Design: 32 individually controlled DC output points in a single module for efficient space usage.
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Fast Response: Designed for high-speed switching in automation control applications.
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Reinforced Isolation: Meets IEC Class 2 insulation standards for safe electrical separation between circuits.
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Thermal Efficiency: Low heat generation with a maximum power dissipation of 4.5 W.
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Modular Flexibility: Fully compatible with Compact I/O power supplies and controller modules.
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Ease of Maintenance: Detachable terminal block simplifies wiring and field replacement.
Application Scenarios
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Machine automation and discrete control systems
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Material handling, packaging, and assembly line operations
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Process control requiring multiple DC output points
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Integration within CompactLogix or MicroLogix 1500 I/O configurations
FAQ
Q1: What controllers are compatible with the 1769-OB32?
It can be used with Allen-Bradley CompactLogix and MicroLogix 1500 controllers that support the 1769 Compact I/O platform.
Q2: Does the module support both sourcing and sinking outputs?
No. The 1769-OB32 provides sourcing outputs only, designed for DC loads.
Q3: What is the recommended replacement terminal block?
Use 1769-RTBN18 (one per module) for secure wiring and easy maintenance.
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
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.
Human-Machine Interface Design: Essential Guide to HMI Selection, Visualization, and Control System Integration
Human-Machine Interfaces (HMIs) serve as the primary operational window into complex industrial automation systems. Modern HMIs convert raw machine data into clear graphical displays, enabling operators to oversee entire manufacturing processes in real time. Instead of relying on physical control panels full of hardwired switches, engineers program interactive screens using intuitive graphics, dynamic color coding, and responsive touch interfaces. Over my 15 years in control systems engineering, I have observed HMIs transform from basic display screens into sophisticated command centers that drive operational efficiency across DCS and PLC environments.
Understanding Safety Relays in Industrial Automation: Architecture, Operation, and Functional Safety
Standard electromechanical relays provide basic electrical isolation between low-voltage control circuits and high-power output loads. A traditional switching relay features a magnetic coil driving mechanical Common (COM), Normally-Open (NO), and Normally-Closed (NC) contacts. However, standard relays pose severe functional risks when deployed in critical safety interlock circuits. High current inrush or mechanical wear can weld contacts together permanently. If contact welding occurs in an emergency stop circuit, pressing the button fails to halt hazardous machinery movements. Consequently, global functional safety standards prohibit standard relays for critical machine guarding functions.