Allen Bradley 1746-IA16 Digital Input Module

The AB 1746-IA16 is a 16-channel digital input module designed for use with the SLC 500 modular controller platform. This AC input module is optimized for high-reliability signal acquisition from field devices operating at standard industrial voltage levels. It accepts AC signals within the 85–132V range at 47–63 Hz and features 16 input points organized into two groups of 8 points per common.

Built for seamless integration with SLC 500 systems, the 1746-IA16 provides fast input recognition, noise immunity, and reliable performance in harsh industrial environments.

Technical Specifications

Model: 1746IA16
Series: SLC 500
Type: Digital Input Module
Channels: 16 Digital Inputs
Input Voltage Type: AC
Input Voltage Range: 85…132 V AC
Input Frequency Range: 47–63 Hz
Points per Common: 8 (2 groups)
Application: Discrete signal acquisition, machine and process control

Electrical Specifications

Nominal Input Voltage: 120 V AC
Operating Voltage Range: 85…132 V AC
Input Frequency: 47–63 Hz
Input Current (Nominal): Approx. 10 mA @ 120 V AC
Signal Delay (On/Off): 8 ms typical
Input Impedance: Approx. 12 kΩ
Backplane Current Load: 0.065 A @ 5 V DC
Isolation Voltage: 1500 V AC (input-to-backplane)
Overvoltage Protection: Built-in
Power Dissipation: Approx. 3.2 W

Mechanical Specifications

Width: Approx. 35 mm
Height: Approx. 145 mm
Depth: Approx. 120 mm
Mounting Type: Rack-mounted (SLC 500 chassis)
Connection Type: Removable terminal block
Installation Orientation: Vertical
Weight: Approx. 290 g
Module Status Indicators: LED per channel
Front Installation Possible: Yes

Environmental Specifications

Operating Temperature: 0…60 °C
Storage Temperature: –40…85 °C
Relative Humidity: 5% to 95% non-condensing
IP Rating: IP20
Vibration Resistance: IEC 60068-2-6
Shock Resistance: IEC 60068-2-27
Certifications: CE, c-UL-us, CSA, RoHS
Use in Commercial Environments: Permitted with appropriate enclosure

Compliance & Communication

Platform Compatibility: Allen Bradley SLC 500 Series
Communication Interface: Via chassis backplane
Diagnostics: Input status and module health via PLC
Protocol Support: Determined by SLC processor (e.g., DH+, EtherNet/IP via gateway)
Hot-Swappable: Yes, when used in redundant power systems

Key Features & Benefits

✅ 16 AC Input Channels – Supports wide voltage range (85–132V AC) with reliable signal recognition

✅ Standard Frequency Support – Accepts both 50 Hz and 60 Hz input signals

✅ Group Isolation – 8 inputs per common terminal for flexible wiring

✅ SLC 500 Integration – Full compatibility with all SLC chassis and processors

✅ Robust Design – Designed to operate reliably in electrically noisy environments

📦 Order the Allen Bradley 1746-IA16 from Drive Outlet Megastore

At Drive Outlet Megastore we offer unbeatable Allen Bradley 1746-IA16 prices. This versatile AC input module is trusted across the UK and Europe for seamless SLC 500 integration, and with stock available, you can count on fast delivery and expert support.

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