Allen-Bradley 1756-OB16I ControlLogix DC Output Module
$123.00
$320.00
Description
Product Description
The 1756-OB16I is a discrete DC output module designed for ControlLogix platforms, providing 16 individually isolated output channels for reliable field device control. Manufactured by Allen-Bradley, this module supports both sinking and sourcing configurations, offering flexibility in system design.
Each output channel is electrically isolated, minimizing cross-channel interference and improving system robustness in electrically noisy environments. The 1756-OB16I is installed directly into a ControlLogix local or remote chassis and integrates seamlessly with standard removable terminal blocks for efficient wiring.
With fast switching performance and configurable load handling, the module is suitable for a wide range of discrete automation tasks.
Key Functional Characteristics
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16 independently isolated DC output channels
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Supports both sinking and sourcing wiring configurations
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Designed for 12/24V DC industrial systems
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Fast switching response for precise control
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Compatible with ControlLogix local and remote chassis
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Removable terminal block for simplified installation and maintenance
Technical Specifications
| Parameter | Specification |
|---|---|
| Manufacturer | Allen-Bradley |
| Model | 1756-OB16I |
| Product Type | Isolated DC Digital Output Module |
| Product Family | ControlLogix |
| Number of Outputs | 16 (individually isolated) |
| Output Voltage Range | 10–30 V DC |
| Nominal Voltage | 12 / 24 V DC |
| Output Configuration | Sink / Source selectable |
| Output Delay (ON) | ≤ 1 ms |
| Output Delay (OFF) | ≤ 2 ms |
| Current per Channel | 2 A @ 30°C; 1 A @ 60°C (derated) |
| Current per Module | 8 A @ 30°C; 4 A @ 60°C |
| Backplane Current | 350 mA @ 5.1 V DC; 3 mA @ 24 V DC |
| Power Dissipation | Max. 3.6 W @ 60°C |
| Isolation Voltage | Typically up to 250 V (input-to-backplane, continuous rating varies by design context) |
| Terminal Blocks | 1756-TBCH, 1756-TBS6H (36-pin RTB) |
| Mounting | ControlLogix chassis |
| Operating Temperature | 0°C to 60°C |
| Enclosure | Open-style (panel mounting required) |
| Weight | 0.40 lb |
Application Scenarios
The 1756-OB16I is commonly applied in automation systems requiring high-reliability output control, such as motor starters, solenoid valves, relays, and indicator devices. Its individually isolated outputs make it particularly effective in installations with mixed signal sources or varying ground potentials.
Typical industries include automotive manufacturing, packaging systems, and material handling operations where robust discrete output control is essential.
FAQ
What is the advantage of individually isolated outputs?
Each output channel operates independently, preventing faults or electrical noise from propagating across channels.
Does the module support both sinking and sourcing outputs?
Yes, the 1756-OB16I can be configured for either sinking or sourcing applications depending on wiring.
What terminal blocks are required?
It is compatible with 36-pin removable terminal blocks such as 1756-TBCH and 1756-TBS6H.
How does this module differ from non-isolated output modules?
Unlike standard modules, the 1756-OB16I provides channel-to-channel isolation, improving performance in demanding electrical environments.
Features
Minimum Order Quantity (MOQ)
We welcome bulk orders and have a minimum order quantity of just one unit.
Certificates and Documentation
Upon request, we can provide all necessary documentation, including Certificates of Origin/Conformance and other required export documents.
Delivery Time
For items in stock, we aim to deliver within 1-3 days after payment confirmation. Items with specified lead times will be delivered according to the quoted schedule.
Payment Methods
We accept 100% T/T (Telegraphic Transfer) payment before shipping. For items with lead times, a 30% deposit is required upfront, with the remaining 70% due before shipment. For RMB transfers, please contact us if you have an agent in China.
Warranty
We offer a standard one-year warranty on all new and original items. If you require an extended warranty, please contact us for additional cost details.
Refund and Return Policy
Your satisfaction is important to us. If you need to return an item, it must be done within 30 days of the order date. The product must be unused, unopened, and in its original packaging with all accessories included. Refunds are processed within 5-7 business days after we receive the returned item. Please note that shipping and related charges are non-refundable.
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