Product Details
Product Description
The Allen Bradley 1756-OB32 is a ControlLogix DC output module designed to provide 32 sourcing output points for industrial automation systems. It supports a wide operating voltage range and delivers reliable switching performance with fast response times. The module is engineered for high-density output applications, offering robust current handling and integrated diagnostics.
Technical Specifications
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Manufacturer Allen Bradley
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Product Line ControlLogix 1756 Series
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Product Type Digital Output Module
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Part Number 1756-OB32
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Weight 0.56 lbs (0.26 kg)
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Outputs 32 sourcing DC outputs
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Nominal Voltage 12–24 V DC
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Operating Voltage Range 10–31.2 V DC
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Output Delay Time
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OFF to ON: 60 µs nominal / 1 ms max
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ON to OFF: 200 µs nominal / 1 ms max
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Current per Point
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0.5 A @ 50 °C (122 °F)
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0.35 A @ 60 °C (140 °F)
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Current per Module
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16 A @ 50 °C (122 °F)
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10 A @ 60 °C (140 °F)
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Maximum Output Current Rating
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Point: 0.5 A @ 50 °C, 0.35 A @ 60 °C
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Module: 16 A @ 50 °C, 10 A @ 60 °C
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Power Dissipation (Max) 4.8 W @ 60 °C
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Backplane Current 300 mA @ 5 V DC
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Isolation Voltage 50 V continuous (basic insulation)
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Removable Terminal Blocks 1756-TBCH, 1756-TBS6H
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Enclosure Type Open-style
Application Scenarios
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High-density digital output control in ControlLogix systems
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Machine-level automation requiring fast switching response
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Distributed control systems with modular expansion
FAQ
Q: How many outputs does the 1756-OB32 provide? A: It supports 32 sourcing DC output points.
Q: What is the maximum current per module? A: 16 A at 50 °C, derated to 10 A at 60 °C.
Q: Which terminal blocks are compatible? A: 1756-TBCH and 1756-TBS6H removable terminal blocks.
Comparable Models
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1756-OB32: 32-point DC output module (this model)
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1756-IB32: 32-point DC input module
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1756-OB16: 16-point DC output module
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
Redundant Automation Systems: Core Architecture, Business Value, and Technical Advantages
Unplanned downtime poses a major financial threat to process manufacturing. To prevent costly interruptions, engineers deploy redundant PLC and DCS architectures that ensure continuous operation when hardware fails. This technical guide explores redundancy principles, critical system nodes, and real-world scenarios.
Preventing Emergency Stop Spurious Trips in Industrial Control Systems
Emergency Stop pushbuttons use Normally Closed contacts for fail-safe safety, but mechanical wear can cause costly spurious trips. This technical guide examines E-Stop contact failure root causes, redundant hardware setups, PLC logic monitoring, and maintenance strategies to maximize plant availability.
Why 24V DC Is the Universal Standard for Industrial Automation Power Supplies
Industrial manufacturing requires continuous uptime to prevent equipment damage. Unlike AC power, 24V DC circuits seamlessly integrate with UPS units and battery banks. During main grid failures, a 24V DC backup system instantly maintains PLC memory, instrument loops, and critical safety valves without interruption.