1771-IAN Digital Input Module - Allen-Bradley

Allen-Bradley 1771-IAN 32-Point Digital Input Module Overview

Key Features and Technical Specifications

• The Allen-Bradley 1771-IAN features 32 input channels organized as 4 groups of 8, accepting an AC operating voltage range of 85-138 Volts with a 120V AC/DC voltage category.
• This module delivers typical AC signal delays of 10 ms (±7 ms) for On transitions and 20 ms (±15 ms) for Off transitions.
• The 1771-IAN draws 280 mA from the backplane at 5V DC and maintains a maximum AC Off-State current of 3.0 mA and DC Off-State current of 0.8 mA.
• It includes input filtering to reduce electrical noise and optoelectrical isolation to protect system circuits from harmful transients.
• The module measures 3.5 x 6.5 x 2.0 inches (89 x 165 x 51 mm) with a maximum power dissipation of 7W and thermal dissipation of 24.1 BTU/hr.

Frequently Asked Questions

• What is the input voltage range for the 1771-IAN? The 1771-IAN operates with AC voltages from 85 to 138 Volts at 50/60 Hz with a 120V AC/DC category rating.
• How many inputs does this module provide? The Allen-Bradley 1771-IAN offers 32 inputs organized as four isolated groups of eight channels each.
• What are the signal delay specifications? This module features typical AC On delays of 10 ms (±7 ms) and AC Off delays of 20 ms (±15 ms).
• Does the 1771-IAN work with DC voltages? While the voltage category includes DC, the 1771-IAN is specifically designed for AC operation with an 85-138V AC range. For DC applications, refer to other 1771 modules.
• What wiring arm does this module require? The 1771-IAN uses the 1771-WN wiring arm, included with your purchase for immediate installation.
• What is the backplane current draw? The module draws 280 mA from the 5V DC backplane supply.
• Is this module new or refurbished? We supply brand new, factory-sealed Allen-Bradley modules with full manufacturer warranty.
• What are your shipping and return policies? We maintain in-stock inventory and ship within 5 business days via DHL, FedEx, or UPS. We accept returns within 30 days of delivery.

Partner Information

NexAuto Technology Limited: https://www.nex-auto.com/

Contact Information

For inquiries, please contact our sales team:
Email: sales@nex-auto.com
Phone/WhatsApp: +86 153 9242 9628