Allen-Bradley 1771-ID01 Isolated AC/DC Input Module

Product Overview

The 1771-ID01 is an isolated AC/DC input module from Allen-Bradley. It belongs to the PLC-5 product line. This module offers 6 input channels. It works with both AC and DC voltages. The AC range is 184 to 276 Volts. The DC range is 18 to 276 Volts. The module provides electrical isolation for system protection. It requires 74 mA from the backplane. The module ships with a field wiring arm (1771-WD).

Application Scenarios

The 1771-ID01 connects to ON/OFF devices like switches and pushbuttons. It supports isolated-circuit multiple-phase applications. You can drive the module with a 220-240V AC output module. Connect a snubber or 3.3K ohm 20W resistor between output and common. Power both input and output from the same AC source. This ensures correct phasing and prevents module damage.

Technical Specifications

Here are the key technical details:

• Manufacturer: Rockwell Automation
• Brand: Allen-Bradley
• Catalog Number: 1771-ID01
• Module Type: Digital AC/DC Input
• Number of Inputs: 6
• AC Operating Voltage: 184-276V
• DC Operating Voltage: 18-276V
• Max AC Off-State Current: 0.7 mA
• Max DC Off-State Current: 1.0 mA
• Typical AC Signal Delay On: 20 (+/- 10) ms
• Typical DC Signal Delay On: 10 (+/- 4) ms
• Typical AC Signal Delay Off: 20 (+/- 10) ms
• Typical DC Signal Delay Off: 20 (+/- 9) ms
• Backplane Current: 74 mA
• Dimensions: 89 x 165 x 51 mm (3.5 x 6.5 x 2.0 in)

The module has a wide operating range for both AC and DC signals. The off-state currents are low at 0.7 mA AC and 1.0 mA DC. Signal delays vary by type and range up to 30 ms.

Installation & Maintenance Guide

Install the 1771-ID01 into a 1771 I/O chassis. The backplane supplies power. Use the included wiring arm for field connections. Ensure the AC source is stable and correctly phased. Add a snubber when using an output module. Check the off-state currents to avoid false triggering. The module operates at high voltage. Always follow safety procedures. Do not hot-swap the module.

Packing List

Each package contains the 1771-ID01 input module. It also includes the 1771-WD field wiring arm. We ship all orders via Fedex, UPS, or DHL. Contact us for expedited shipping options.