Allen-Bradley 1771-IH DC Input Module - Versatile 24-48V Industrial Solution

Upgrade your control system with the reliable 1771-IH module. This 8-channel DC input module handles 24-48V signals with consistent performance. Perfect for various industrial applications requiring robust signal interface.

Key Advantages

• Wide voltage range: 24-50V DC
• 8 independent input channels
• Clear status indicators for each input
• Easy maintenance with wiring arm
• Rugged industrial design

Technical Specifications

Brand: Allen-Bradley/Rockwell Automation

Model: 1771-IH Series

Module Type: Digital DC Input

Input Points: 8 Channels

Voltage Range: 24-50V DC

Voltage Category: 10-60V DC Sink

Input Current: 8.4mA @ 24V, 20mA @ 48V

Response Time: 15ms On / 20ms Off

Backplane Current: 74mA

Off-State Current: 0.7mA Maximum

Isolation Voltage: 1500V AC RMS

Input Impedance: 2.5-6K Ω

Power Dissipation: 0.4W Min / 8.1W Max

Operating Temperature: 0-60°C (32-140°F)

Wiring Arm: 1771-WD

Quick Installation

Rack mountable design

Simple slot installation

Uses 1771-WD wiring arm

Standard 1771 I/O chassis compatible

Typical Applications

Industrial control systems

Machine automation

Process control interfaces

Equipment monitoring

Package Includes

1771-IH Input Module

1771-WD Wiring Arm

Required documentation

Customer Support

12 Month Comprehensive Warranty

Express shipping: FedEx, UPS, DHL available

Common Questions

What voltage range does this module support?

The 1771-IH operates with DC voltages from 24 to 50 volts, making it suitable for various industrial applications.

How many status indicators are provided?

Eight red status indicators allow easy monitoring of each input channel's activation status.

What is the isolation rating for safety?

The module provides 1500V AC RMS isolation to protect system circuits from electrical transients.

Can this module handle higher voltage spikes?

Yes, the 1771-IH is rated for voltages up to 60V DC in the sink configuration for added durability.

What is the typical response time?

Input signals are processed within 15-20 milliseconds, ensuring timely system responses.

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