PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-OB16E is an SLC 500 isolated sourcing DC output module. It installs into any available slot of a standard 1746 chassis. Field wiring connects through an integrated Removable Terminal Block. The module provides sixteen discrete sourcing outputs across an operating range of 10 to 30V DC. It operates with a nominal voltage of 24V DC.
The unit draws a backplane current of 0.135 A at 5V DC. Continuous current per point reaches 1.0 A at 30 °C. The point current derates to 0.5 A at 60 °C. Aggregate module current reaches up to 8 A maximum. The hardware features electronic short-circuit and overload protection with automatic reset. Aggregate heat dissipation is 7.6W across the module.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Category | PLCs |
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| Product Line | SLC 500 |
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| UPC | 662072720417 |
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| Weight | 0.81 lbs (0.37 kg) |
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| Module Type | Digital DC Output Module |
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| Voltage Range | 10-30 Volts DC Source |
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| Outputs | 16 |
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| Current/Output | 1 or 0.5 amps |
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| Current/Module | 8 amps |
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| Backplane Current (5 Volts) | 135 milliamps |
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| Current/Module (30 Celsius) | 9 amps |
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| Applications | High Current |
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| Step Response | 60 milliseconds in, 2.5 milliseconds out |
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| UNSPSC | 32151705 |
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| Output Type | Sourcing Digital DC Output |
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| Number of Outputs | 16 Points (1 common) |
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| Operating Voltage | 10 - 30 V DC (24 V DC nominal) |
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| Continuous Current per Point | 1.0 A @ 30 °C (86 °F), 0.5 A @ 60 °C (140 °F) |
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| Backplane Current | 0.135 A @ 5 V DC |
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| Output Protection | Electronic short-circuit and overload protection (auto-reset) |
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| Output Delay | On: 1 ms / Off: 1 ms (typical resistive load) |
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| Module Current (Total) | 8 A maximum |
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TECHNICAL INFORMATION
Features
- Sixteen sourcing DC outputs operating from 10 to 30V DC.
- Electronic short-circuit and overload protection with automatic reset.
- Removable Terminal Block simplifies module replacement and field wiring.
- Draws 0.135 A backplane current at 5V DC.
- Step response times of 60 ms input and 2.5 ms output.
- Operational vibration resistance rated at 2.5G from 10 to 200 Hz.
TECHNICAL INFORMATION
Applications
- High-current DC field device switching in SLC 500 control systems.
TECHNICAL INFORMATION
Connections / Interfaces
- Removable Terminal Block accepts point-to-point field wiring.
- Chassis backplane edge connector routes logic power and communication signals.
TECHNICAL INFORMATION
Installation Guidelines
- Insert the module into any available slot of a 1746 chassis with power switched off.
- Secure field wiring to the Removable Terminal Block before applying power.
- Maintain operating temperatures between 0 and 60 °C with 5 to 95 percent noncondensing humidity.
TECHNICAL INFORMATION
Compatibility
- Compatible with SLC 500 1746 I/O chassis.
TECHNICAL INFORMATION
Compliance and Certifications
- NEMA ICS 2-230 rated for noise immunity.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with SLC 500 1746 I/O chassis.
Verify compatibility against the exact Part Number, revision and manufacturer documentation before ordering.
PART VERIFICATION
Before You Order
Industrial automation parts can share similar model names, suffixes and revisions. Confirm the complete manufacturer Part Number before purchase.
01Check Part NumberMatch the complete ordering code on the existing unit.
02Confirm RevisionCheck suffix, hardware or firmware when applicable.
03Send a Label PhotoWe can review a clear label photo when identification is uncertain.
ORDERING PROCESS
From RFQ to Dispatch
1Submit Part Number2Verify Product Identity3Confirm Stock & Condition4Issue Quotation5Dispatch & Tracking
PRODUCT FAQ
Frequently Asked Questions
What is the operating voltage range for the Allen-Bradley 1746-OB16E?
The module operates from 10 to 30V DC with a nominal sourcing rating of 24V DC.
How much continuous current can each output point carry on the 1746-OB16E?
Each point delivers 1.0 A at 30 °C and derates to 0.5 A at 60 °C.
Does the 1746-OB16E require external fuses for output protection?
No, the module features integrated electronic short-circuit and overload protection with automatic reset functionality.
What is the market reference price for the 1746-OB16E?
Observed market pricing is approximately 159 USD for refurbished units. This figure is an indicative market reference price only and not a final quotation.
