PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-IO12DC is an SLC 500 Digital I/O Combination Module providing discrete control in a single compact chassis slot. It integrates six 24V DC inputs and six normally-open relay contact outputs for industrial automation applications. The DC inputs operate across an input voltage range of 10 to 30V DC with six points per common. The relay outputs support an operational voltage window between 5 and 265V AC or 5 and 125V DC.
The module mounts in any SLC 500 chassis slot except slot 0, which is reserved for the processor unit. Internal backplane power draw requires 0.08A at 5V DC and 0.06A at 24V DC during routine operation. Individual output channels deliver up to 1.5A at 120V AC and 1.2A at 24V DC. Total module thermal dissipation reaches 3.9W, with 1.84W dissipated at each output point during operation. Operating ambient temperatures span 0 to 60 degrees Celsius under relative humidity levels from 5 to 95 percent.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Applications | Combination 24 Volts DC I/O |
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| Backplane Current | 60-80 milliamps |
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| Category | PLCs |
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| Current/Output (120 VAC) | 1.5 amps |
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| Current/Output (24VDC) | 1.2 amps |
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| GTIN | 10662468983362 |
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| Inputs | 6 |
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| Module Type | Digital I/O Combination Module |
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| Operating Voltage | 10-30 Volts DC |
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| Outputs | 6 |
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| Signal delay | 8 milliseconds |
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| Weight | 0.88 lbs (0.40 kg) |
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TECHNICAL INFORMATION
Features
- Six 24V DC input channels with a 10 to 30V DC operating range.
- Six normally-open relay contact outputs supporting AC and DC load voltages.
- Internal backplane current consumption of 0.08A at 5V DC and 0.06A at 24V DC.
- Channel output current rating of 1.5A at 120V AC and 1.2A at 24V DC.
- Thermal design with 3.9W total module dissipation and 1.84W per output point.
- Operational shock resistance rated at 30G and operational vibration rated at 2.5G.
TECHNICAL INFORMATION
Applications
- SLC 500 discrete input and output expansion.
- Combination 24 Volts DC I/O processing in industrial machinery.
TECHNICAL INFORMATION
Connections / Interfaces
- Six discrete DC input terminals sharing a single common line.
- Six isolated normally-open relay contact output circuits.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module into any available slot of an SLC 500 chassis except slot 0.
- Ensure slot 0 remains reserved exclusively for the SLC 500 processor module.
- Maintain ambient operating temperatures between 0 and 60 degrees Celsius inside the enclosure.
TECHNICAL INFORMATION
Compatibility
- Allen-Bradley SLC 500 chassis systems in any I/O slot position except slot 0.
TECHNICAL INFORMATION
Compliance and Certifications
- CSA certified
- C-UL certified
- NEMA ICS 2-230 noise immunity
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSAllen-Bradley SLC 500 chassis systems in any I/O slot position except slot 0.
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
Which chassis slots support the 1746-IO12DC module?
The 1746-IO12DC installs in any SLC 500 chassis slot except slot 0, which is reserved for the processor.
What are the input and output ratings of the 1746-IO12DC?
The module provides six 10 to 30V DC inputs and six normally-open relay outputs rated up to 2A.
How much backplane current does the 1746-IO12DC draw?
The module draws 0.08A at 5V DC and 0.06A at 24V DC from the SLC 500 chassis backplane.
