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Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module
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- FAQs
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Product Introduction
The Allen Bradley 1746-IA8 SLC 500 AC Digital Input Module is an 8-channel AC input module designed for integration within the SLC 500 automation platform by Rockwell Automation. It is built to reliably detect and transmit AC input signals from field devices to the controller, ensuring stable monitoring of discrete processes.
This module operates with 100/120 VAC input signals, making it suitable for applications where AC-powered devices such as push buttons, limit switches, and relays are commonly used. Its open-style design allows for efficient heat dissipation while maintaining dependable operation in standard industrial control cabinets.
With 8 input points grouped for simplified wiring, the 1746-IA8 provides a practical and cost-effective solution for systems that require AC signal acquisition within SLC 500 rack-based architectures.
Product Specifications
| Parameter | Value |
|---|---|
| Module Type | SLC 500 AC Digital Input Module |
| Input Type | Digital AC |
| Number of Inputs | 8 Points |
| Input Voltage Range | 100/120 VAC |
| Frequency Range | 50/60 Hz |
| Backplane Current | 50 mA @ 5V |
| Input Configuration | 8 Points per Module |
| Signal Type | AC Discrete Input |
| Isolation | Electrical Isolation Supported |
| Status Indicators | LED per Channel |
| Design Type | Open Style |
| Mounting | Rack Mountable (SLC 500 Chassis) |
| Operating Temperature | 0 to 60°C |
| Storage Temperature | -40 to 85°C |
| Humidity | 5–95% non-condensing |
| Dimensions | 144.5 × 34.6 × 130.18 mm |
| Weight | 0.204 kg |
Applications
● Used for monitoring AC input signals such as push buttons and selector switches
● Suitable for industrial control panels where AC-powered field devices are used
● Applied in manufacturing systems, providing reliable discrete input detection
● Common in process control environments, where stable AC signal monitoring is required
● Ideal for equipment retrofits, maintaining compatibility with SLC 500 systems
● Used in material handling systems, detecting operational states and positions
Advantages
● Supports standard 100/120 VAC inputs, widely used in industrial environments
● Provides 8 input channels, suitable for compact system configurations
● Features open-style design for efficient thermal performance
● Includes LED indicators per channel, allowing quick status verification
● Ensures stable signal detection, even in electrically noisy conditions
● Fully compatible with SLC 500 rack systems, simplifying integration
FAQ
- What type of input signals does this module support?
It is designed specifically for AC digital signals within the 100/120 VAC range. - What devices can be connected to this module?
Typical devices include push buttons, limit switches, relays, and other AC-powered discrete devices. - How many input channels are available?
The module provides 8 independent input channels. - Is this module suitable for DC signals?
No, it is designed exclusively for AC inputs; DC signals require a different module type. - How is the module installed?
It is installed into an SLC 500 chassis and integrates directly with the system backplane. - Does the module provide visual status indication?
Yes, each input channel has an LED indicator to show real-time signal status. - What is the benefit of using an AC input module?
It allows direct connection to AC-powered devices without requiring signal conversion. - How does the module perform in noisy environments?
It is designed with industrial-grade filtering and isolation to maintain reliable signal detection. - Can it be used in modern systems?
It is mainly used in existing SLC 500 systems or retrofit projects rather than new designs. - What is the main advantage of the open-style design?
It improves heat dissipation and ensures stable operation under continuous industrial use.
Related Models
| Model | Description | Channels | Voltage |
|---|---|---|---|
| 1746-IA16 | AC Digital Input Module | 16 Inputs | 120 VAC |
| 1746-IN16 | AC/DC Input Module | 16 Inputs | 24 VAC/DC |
| 1746-IB16 | DC Digital Input Module | 16 Inputs | 24 VDC |
| 1746-OB8 | Digital Output Module | 8 Outputs | 24 VDC |
| 1746-OW16 | Relay Output Module | 16 Outputs | AC/DC |
| 1746-NI4 | Analog Input Module | 4 Channels | Analog |
Popular Models
| Model | Description | Voltage | Key Feature |
|---|---|---|---|
| 1734-AENTR | POINT I/O Ethernet Adapter | 24 VDC | Dual Port |
| 1734-IB8 | Digital Input Module | 24 VDC | Compact Design |
| 1734-OB8 | Digital Output Module | 24 VDC | Reliable Control |
| 1756-IA16 | ControlLogix AC Input Module | 120 VAC | High Performance |
| 1769-IF4 | CompactLogix Analog Input | 24 VDC | High Accuracy |
| 1734-EP24DC | Expansion Power Supply | 24 VDC | Power Distribution |
| Company Information | ||||||||
| [email protected] | ||||||||
| Mobile | +8613666033393 | |||||||
| +8613666033393 | ||||||||
| 13666033393 | ||||||||
| Add | Room 1004, No. 62 Xiangxiu Li, Siming District, Xiamen City, Fujian Province, China | |||||||
Excellent PLC Co., Ltd. has a large number of brand new and original PLC and DCS spare parts, with more than 60 cooperative countries. All products are guaranteed for 1 year and delivered to you by high-quality express. We are committed to using the best products and the most favorable prices to meet the needs and friendship of our customers. We have won the trust of thousands of customers, including these excellent customers.
As for the delivery time, when we receive your order requirements, we will arrange for warehouse personnel to test and verify the products. After you place the order, we will send it to you within 24 hours.
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