PRODUCT INFORMATION
Product Overview
The Allen-Bradley 1746-IV32 is a 24V DC current sourcing discrete input module for SLC 500 systems. It provides 32 input points arranged into four groups of eight channels each. Each input operates from 15 to 30V DC at 50 degrees Celsius. The operating range shifts to 15 to 26.4V DC at 60 degrees Celsius. The nominal input current is 5.1 mA per point at 24V DC.
The module installs in any standard slot within an SLC 500 chassis. It draws 0.050 A nominal and up to 106 mA at 5V DC from the backplane. It draws 0 A from the 24V DC backplane connection. Isolation between channels and backplane is tested at 1500V AC for 60 seconds. Operating shock resistance is rated at 30G with vibration resistance of 2.5G at 57 to 200 Hz.
TECHNICAL DATA
Technical Specifications
| Parameter | Specification |
|---|
| Agency Certification | UL / C-UL listed Class I, Division 2, Groups A, B, C, D CE marked for all applicable directives C-Tick marked for all applicable acts |
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| Applications | Combination 120 Volts AC I/O |
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| Backplane Current (5 Volts DC) | 106 milliamps |
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| Category | PLCs |
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| GTIN | 10662468092767 |
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| Input current | 5.1 mA at 24V dc |
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| Input voltage range | 15 to 30V dc at 50° C; 15 to 26.4V dc at 60° C |
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| Inputs | 32 |
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| Module Type | 24VDC input module |
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| No. of groups | 4 |
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| Off State Current | 1 milliamp |
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| Off-state current, max | 1.5 mA |
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| Off-state voltage, max | 5.0V dc |
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| On-state Voltage, min. | 15.0V dc |
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| Operating Temperature | 0...+60 °C (+32...+140 °F) |
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| Relative Humidity | 5 to 95% without condensation |
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| Signal delay | ON = 3 ms; OFF = 8 ms |
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| Storage Temperature | -40°C to +85°C (-40°F to +185°F) |
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| UPC | 10662468092767 |
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| Voltage Range | 15-30 Volts DC Source |
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| Weight | 1.31 lbs (0.60 kg) |
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TECHNICAL INFORMATION
Features
- Thirty-two discrete current sourcing inputs arranged in four groups of eight channels.
- Operating voltage range of 15 to 30V DC at 50 degrees Celsius.
- Operating voltage range of 15 to 26.4V DC at 60 degrees Celsius.
- Fast signal response with maximum 3 ms delay for on and off states.
- Dielectric backplane isolation tested at 1500V AC for 60 seconds.
- Low backplane current consumption drawing 0.050 A nominal at 5V DC.
- Vibration resistance rated at 2.5G and operational shock tolerance of 30G.
TECHNICAL INFORMATION
Applications
- Digital DC input monitoring for SLC 500 chassis installations.
- Current sourcing input interface for SLC 500 controller systems.
- Discrete signal acquisition across local racks, extended racks, or distributed I/O racks.
TECHNICAL INFORMATION
Connections / Interfaces
- Field wiring connects 32 input points across four isolated groups.
- Each group of eight channels shares a common return connection.
- The module connects directly to the chassis backplane through a standard edge connector.
TECHNICAL INFORMATION
Installation Guidelines
- Disconnect all incoming electrical power before inserting or removing the module.
- Seat the module securely into any slot of the SLC 500 chassis.
- Verify field input wiring adheres to group common polarity requirements.
- Maintain ambient operating temperatures between 0 and 60 degrees Celsius.
- Ensure operating relative humidity stays between 5% and 95% non-condensing.
TECHNICAL INFORMATION
Compatibility
- Installs into any standard slot within an SLC 500 chassis.
- Functions with any SLC 500 processor in the system rack.
- Operates in local I/O racks, extended racks, and distributed I/O racks.
- Interfaces with compatible 24V DC discrete field devices.
TECHNICAL INFORMATION
Lifecycle / Replacement Information
- Series A, B, and C include four internally installed 2.5A non-replaceable fuses.
- Hardware Series D modules do not include internal group fusing.
- Verify common circuit protection requirements when replacing earlier hardware revisions.
TECHNICAL INFORMATION
Compliance and Certifications
- UL listed.
- C-UL listed for Class I, Division 2, Groups A, B, C, and D hazardous locations.
- CE marked for applicable European directives.
- CSA certified.
- Meets NEMA ICS 2-230 noise immunity standards.
COMPATIBILITY
Compatibility & Replacement
COMPATIBLE MODELSInstalls into any standard slot within an SLC 500 chassis. Functions with any SLC 500 processor in the system rack. Operates in local I/O racks, extended racks, and distributed I/O racks. Interfaces with compatible 24V DC discrete field devices.
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 primary function of the Allen-Bradley 1746-IV32 module?
It provides 32 current sourcing 24V DC discrete inputs for SLC 500 systems.
Which processors are compatible with the 1746-IV32 input module?
The module is compatible with any SLC 500 processor.
How are the input channels grouped on the 1746-IV32?
The 32 channels are arranged into four separate groups of eight channels each.
What differences exist between hardware series for the 1746-IV32?
Series A, B, and C feature internal common fuses, while Series D omits internal group fusing.
