PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-OB8 is an SLC 500 Current Sourcing DC Output Module. It provides eight sourcing outputs across a range of 10 to 50 Volts DC. The module operates at a nominal voltage category of 24 Volts DC. All eight output points share a single common connection. Backplane current consumption is 135 milliamps at 5 Volts DC.
Continuous output current is 1 Amp per point at 30 degrees Celsius. Continuous current derates to 0.5 Amps per point at 60 degrees Celsius. Total module continuous current reaches 8 Amps at 30 degrees Celsius. Total continuous current derates to 4 Amps at 60 degrees Celsius. Maximum surge current reaches 3 Amps per point for 10 milliseconds. Electro-optical isolation provides 1500 Volts between field terminals and control logic.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Category | PLCs |
|---|
| Product Line | SLC 500 |
|---|
| GTIN | 10662073521355 |
|---|
| Weight | 0.63 lbs (0.28 kg) |
|---|
| Module Type | Digital DC Output Module |
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| Voltage Range | 10-50 Volts DC Source |
|---|
| Outputs | 8 |
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| Current/Output | 1 or 0.5 amps |
|---|
| Current/Module | 8 or 4 amps |
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| Backplane Current (5 Volts) | 135 milliamps |
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| Applications | High Current |
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| Step Response | 60 milliseconds in, 2.5 milliseconds out |
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| UPC | 10662073521355 |
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| Output Type | Digital DC, Sourcing |
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| Number of Outputs | 8 Points |
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| Output Voltage Range | 10 - 50 V DC |
|---|
| Nominal Output Voltage | 24 V DC |
|---|
| Continuous Current per Output | 0.5 A |
|---|
| Backplane Current Draw | 0.085 A at 5 V DC |
|---|
TECHNICAL INFORMATION
Features
- Provides eight current sourcing output points with one common terminal.
- Supports a sourcing voltage range from 10 to 50 Volts DC.
- Delivers up to 1 Amp per point at 30 degrees Celsius.
- Accommodates surge current up to 3 Amps per point for 10 milliseconds.
- Provides 1500 Volts electro-optical isolation between field terminals and control logic.
- Features electronically fused DC output circuitry.
TECHNICAL INFORMATION
Applications
- High-current sourcing DC load switching in industrial automation systems.
- Systems requiring 10 to 50 Volts DC sourcing control outputs.
TECHNICAL INFORMATION
Connections / Interfaces
- Field connections support eight DC output points sharing one common terminal.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into an available slot in an SLC 500 1746 chassis.
- Maintain operating temperatures between 0 and 60 degrees Celsius.
- Maintain relative operating humidity between 5 and 95 percent non-condensing.
- Store the unit between minus 40 and 85 degrees Celsius.
- Check for transient pulses when applying external DC voltage to output common terminals.
TECHNICAL INFORMATION
Compatibility
- Installs into standard Allen-Bradley SLC 500 1746 chassis slots.
TECHNICAL INFORMATION
Compliance and Certifications
- UL Listed
- CSA Certified
- CE Compliant
- C-Tick Certified
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSInstalls into standard Allen-Bradley SLC 500 1746 chassis slots.
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 continuous current rating of the Allen-Bradley 1746-OB8?
The module provides 1 Amp per point at 30°C and 0.5 Amps at 60°C.
What voltage range does the 1746-OB8 output module support?
The 1746-OB8 supports an operating range of 10 to 50 Volts DC source.
What is the indicative market reference price for the 1746-OB8?
Observed market reference pricing is approximately 62 USD. Figures are indicative market reference pricing only and not a final quotation.
