PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-OAP12 is an SLC 500 High Current 120/240V AC Output Module. It installs into any available slot of a 1746 I/O chassis. The unit provides twelve AC output points arranged in two isolated groups of six. Each common group features independent electronic fuse protection. Operating voltage spans 85 to 265V AC across 47 to 63 Hz line frequencies. A removable terminal block facilitates field wiring connections and servicing.
This module delivers continuous load current of 2.0 A per point at 30 degrees Celsius. At 60 degrees Celsius, continuous current capacity derates to 1.0 A per point. Total module current capacity reaches 9.0 A at 30 degrees Celsius. Backplane current draw measures 0.370 A at 5V DC and 0 A at 24V DC. An internal jumper configures blown fuse monitoring for processor diagnostics. Surge current withstands 17 A per point for 25 milliseconds.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Category | PLCs |
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| Product Line | SLC 500 |
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| UPC | 662468434140 |
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| Weight | 1.44 lbs (0.65 kg) |
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| Module Type | Digital AC Output Module |
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| No. of Outputs | Twelve (12) Inputs |
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| Output Voltage | 120 / 240VAC output |
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| Operating Voltage Range | 85-264 VAC |
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| Output Delay Time, OFF to ON | 11 ms |
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| Output Delay Time, ON to OFF | 1 ms |
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| OFF state leakage current | 2 mA |
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| Load Current | 10 mA |
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| Backplane Current at 5.1 Volts | 0.370 A |
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| Continuous current per point | 2.0 A @ 30 °C (86 °F) 1.25 A @ 55 °C (131 °F) 1.0 A @ 60 °C (140 °F) |
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| Continuous current per module, max | 9.0 A @ 30 °C (86 °F) 6.8 A @ 55 °C (131 °F) 6.0 A @ 60 °C (140 °F) |
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| Voltage Range | 85-265 Volts AC |
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| Outputs | 12 |
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| Current/Output at 30 Celsius | 2 amps |
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| Current/Output at 60 Celsius | 1 amp |
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| Backplane Current (5 Volts) | 370 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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TECHNICAL INFORMATION
Features
- Twelve AC output channels organized into two isolated groups of six.
- Continuous current rating reaches 2.0 A per point at 30 °C.
- Electronic fuse protection is provided for each common group.
- Selectable jumper enables blown fuse monitoring via processor status bits.
- Removable terminal block allows pre-wiring and rapid module replacement.
- Operates across a wide AC voltage spectrum from 85 to 265V AC.
TECHNICAL INFORMATION
Applications
- High-current AC load control in SLC 500 systems.
- Discrete 120V AC and 240V AC industrial switching circuits.
TECHNICAL INFORMATION
Connections / Interfaces
- Removable terminal block provides field termination for all twelve AC outputs.
- Two electrically isolated commons divide output points into groups of six.
- Direct backplane edge connector interfaces with any standard 1746 chassis slot.
TECHNICAL INFORMATION
Installation Guidelines
- Disconnect chassis power prior to inserting or removing the output module.
- Configure the fuse monitoring jumper before inserting the unit into the rack.
- Align the circuit board with chassis guides and press firmly into place.
- Fasten field wiring securely into the removable terminal block screws.
TECHNICAL INFORMATION
Configuration Guidelines
- Jumper terminals 2 and 3 enable blown fuse detection.
- Default jumper position across terminals 1 and 2 disables fuse monitoring.
- Blown fuse events trigger major fault bit S:1/13 with code S:6.
- When using SLC 5/02 or later processors, fault routines cannot clear this bit.
TECHNICAL INFORMATION
Compatibility
- Compatible with all Allen-Bradley SLC 500 processor units.
- Operates in any available I/O slot of a 1746 chassis.
- Requires catalog number 1746-F9 fuse kit for field replacement.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Replacement fuse kit catalog number 1746-F9 contains five SAN-O HQ 6.3A fuses.
TECHNICAL INFORMATION
Compliance and Certifications
- UL and CSA compliance is maintained when using SAN-O HQ 6.3A fuses.
TECHNICAL RESOURCES
Documentation
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with all Allen-Bradley SLC 500 processor units. Operates in any available I/O slot of a 1746 chassis. Requires catalog number 1746-F9 fuse kit for field replacement.
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 for the 1746-OAP12?
Each point carries 2.0 A at 30 °C. It derates to 1.0 A at 60 °C.
Which replacement fuse kit is approved for the 1746-OAP12?
Use catalog number 1746-F9, containing five SAN-O HQ 6.3A rated fuses.
How do you enable blown fuse monitoring on this module?
Set the internal jumper to short terminals 2 and 3.
What is the reference price for the 1746-OAP12?
Commercial reference pricing is approximately $789.00. This is indicative market reference pricing only and not a final quotation.
