PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-OB32 is a 32-channel SLC 500 Digital DC Output Module. This module provides thirty-two sourcing outputs arranged in two groups of sixteen points per common. It operates over a sourcing DC voltage range of 5 to 50 Volts DC. Nominal operating voltage for connected field loads is 24 Volts DC. The unit draws 0.19 amperes of backplane current at 5 Volts DC.
Each output channel supports a nominal current rating of 0.25 amperes across operating temperatures. The module handles up to 2 amperes per common and 8 amperes total current. Circuit isolation is tested at 1500 Volts AC for one minute. It mounts in any available slot of a 1746 chassis except slot zero. Front-panel status indicators show individual channel activity for field diagnostics.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Applications | High Current |
|---|
| Backplane Current | (5 Volts)190 mA |
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| Backplane Current (5 Volts) | 190 milliamps |
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| Category | PLCs |
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| Current/Module | 8 amps |
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| Current/Output | 0.5-0.25 amps |
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| Electronic Protection | No |
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| GTIN | 10662468092903 |
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| Module Type | Digital DC Output Module |
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| No. of Outputs | Thirty-Two (32) |
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| Nominal output | 24VDC |
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| Outputs | 32 |
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| Point Per common | Sixteen (16) |
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| Signal Delay, OFF | 1.0 ms |
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| Signal Delay, ON | 0.1 ms |
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| Step Response | 60 milliseconds in, 2.5 milliseconds out |
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| UNSPSC | 32151705 |
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| UPC | 10662468092903 |
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| Voltage Range | 5-50 Volts DC |
|---|
| Weight | 1.00 lbs (0.45 kg) |
|---|
TECHNICAL INFORMATION
Features
- Thirty-two sourcing DC output channels divided into two isolated groups of sixteen points per common.
- Operating voltage range spanning from 5 to 50 Volts DC with a 24 Volt DC nominal rating.
- Maximum signal delay of 0.1 milliseconds in ON mode and 1.0 millisecond in OFF mode.
- Circuit isolation rated at 1500 Volts AC for one minute between output circuits and backplane.
- Backplane current draw of 190 milliamperes at 5 Volts DC.
- Per-point power dissipation of 0.172 Watts with total module dissipation of 6.45 Watts.
TECHNICAL INFORMATION
Applications
- Actuating discrete 24 Volt DC field devices including pilot lamps, buzzers, and audible alarms.
- Driving low-current DC solenoids, actuator valves, and motor starter coils in industrial machinery.
- Switching interposing relays to control alternating-current field loads safely.
TECHNICAL INFORMATION
Connections / Interfaces
- Supports 1746-N3 connectors and 1492 wiring systems for field terminations.
- Ships with a dedicated Removable Terminal Block and an octal door label.
- Features thirty-two dedicated LED indicators on the front panel for individual channel status.
TECHNICAL INFORMATION
Installation Guidelines
- Install the module into any open slot of a 1746 chassis except slot zero.
- Slot zero in the 1746 chassis is reserved exclusively for the system processor.
- Ensure wire bundle sizes allow the front protective door to close completely.
TECHNICAL INFORMATION
Compatibility
- Compatible with all Allen-Bradley SLC 500 1746 I/O chassis assemblies.
- Compatible with Allen-Bradley 1492 pre-wired interface cables and wiring systems.
TECHNICAL INFORMATION
Compliance and Certifications
- UL Listed and C-UL Listed Industrial Control Equipment for Class I, Division 2, Groups A, B, C, D.
- Complies with NEMA standard ICS 2-230 for electrical noise immunity.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with all Allen-Bradley SLC 500 1746 I/O chassis assemblies. Compatible with Allen-Bradley 1492 pre-wired interface cables and wiring systems.
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
Can the 1746-OB32 module be installed in slot zero of an SLC 500 chassis?
No. Slot zero is reserved exclusively for the processor. The 1746-OB32 installs in any other available chassis slot.
What is the operational voltage range for the Allen-Bradley 1746-OB32?
The module operates across a sourcing voltage range of 5 to 50 Volts DC. Nominal voltage is 24 Volts DC.
How are alternating-current loads operated with the 1746-OB32 module?
Use interposing relays. Connect the 24V DC output to the relay coil, and wire the contacts to the AC circuit.
What is the reference price for the 1746-OB32 module?
Pricing depends on module condition, inventory levels, and warranty options. Stated figures are an indicative market reference only; not a final quotation.
