PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-IM8 is an SLC 500 digital AC input module providing 8 input channels. It operates across an input voltage range of 170 to 265 Volts AC at 47 to 63 Hertz. The unit fits into any available slot in a standard SLC 500 chassis. It requires a backplane current of 50 mA at 5 Volts DC and 0 mA at 24 Volts DC.
This module functions within an operating temperature range of -25 to 60 degrees Celsius. Total heat dissipation is 3.1 Watts, with 0.35 Watts generated per point. It withstands an operating vibration rating of 1.0 g from 5 to 2000 Hertz. Operating shock tolerance is rated at 30 g. The hardware is designed as open-type equipment for industrial control environments.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
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| Applications | General Purpose 125 Volts DC Inputs |
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| Backplane Current (5 Volts DC) | 50 milliamps |
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| Category | PLCs |
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| I/O Connection | 1746-HT and 1746-HCA |
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| Inputs | 8 |
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| Module Type | Digital AC Input Module |
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| Off State Current | 2 milliamps |
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| Signal delay | 35 or 45 milliseconds |
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| Step Response | 100 milliseconds in, 2.5 milliseconds out |
|---|
| UPC | 662073521235 |
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| Voltage Range | 170-265 Volts AC |
|---|
| Weight | 0.94 lbs (0.43 kg) |
|---|
TECHNICAL INFORMATION
Features
- Provides 8 digital input channels for high-voltage AC signal monitoring.
- Supports operating AC voltages from 170 to 265 Volts AC.
- Draws 50 mA of backplane current at 5 Volts DC.
- Features a step response of 100 milliseconds in and 2.5 milliseconds out.
- Offers a signal delay specification of 35 or 45 milliseconds.
TECHNICAL INFORMATION
Applications
- Monitoring 200/240 Volts AC field switch and sensor inputs.
- General industrial automation monitoring within SLC 500 controller systems.
TECHNICAL INFORMATION
Connections / Interfaces
- Supports wiring connections via 1746-HT and 1746-HCA assemblies.
- Direct backplane interface to standard SLC 500 backplane slots.
TECHNICAL INFORMATION
Installation Guidelines
- Mount the module in any open chassis slot of an SLC 500 system.
- Install the open-type unit inside a protective enclosure rated for industrial environments.
- Ensure electrical power is disconnected before installing or removing the unit.
- Maintain ambient operating temperatures between -25 and 60 degrees Celsius.
TECHNICAL INFORMATION
Compatibility
- Compatible with Allen-Bradley SLC 500 I/O chassis.
- Interacts with 1746-HT and 1746-HCA connector assemblies.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSCompatible with Allen-Bradley SLC 500 I/O chassis. Interacts with 1746-HT and 1746-HCA connector assemblies.
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 of the 1746-IM8?
The 1746-IM8 operates across a voltage range of 170 to 265 Volts AC at 47 to 63 Hertz.
How many input points does the Allen-Bradley 1746-IM8 provide?
The 1746-IM8 provides 8 digital AC input channels.
What are the backplane current requirements for the 1746-IM8?
The module consumes 50 mA at 5 Volts DC and draws 0 mA at 24 Volts DC.
