1756-IH16I ControlLogix Isolated Input Module 125V DC

Product Overview

The Allen-Bradley 1756-IH16I is a digital isolated input module. It belongs to the ControlLogix family. This module provides 16 individually isolated input points. It operates on a 125V DC sink/source voltage. This design ensures reliable signal detection in noisy environments. The 1756-IH16I offers high isolation between channels. This protects your system from ground loops and surges.

Application Scenarios

This module suits high-voltage DC sensing tasks. Use it in manufacturing and process control. It monitors limit switches and push buttons. It also reads sensor outputs in harsh conditions. The isolated inputs prevent electrical interference. This makes it ideal for motor control centers. It works well in power generation plants. The 1756-IH16I also fits into material handling systems.

Technical Specifications

Inputs: 16 individually isolated points. Input voltage: 125V DC sink/source. Operating range: 90 to 146V DC. On-state current: 1mA min at 90V DC, 3mA max at 146V DC. Off-state current: 0.8mA max. Power dissipation: 5W max at 60°C. Backplane current: 125mA at 5.1V, 3mA at 24V. Isolation: 250V continuous between inputs. Input delay: 6ms plus filter time. Use terminal blocks 1756-TBCH or 1756-TBS6H.

Installation & Maintenance Guide

Install the module into any ControlLogix chassis. Ensure power is off before insertion. Secure the module with the locking mechanism. Wire inputs to the appropriate terminal block. Select filter times via software for noise immunity. Keep the module free from dust and moisture. Check connections periodically for tightness. Replace the module only with the same model.

Packing List

One Allen-Bradley 1756-IH16I module. One installation guide. No terminal block is included. Order 1756-TBCH or 1756-TBS6H separately. We ship via Fedex, UPS, or DHL. Contact us for bulk orders.