Allen-Bradley 1756-IH16I Isolated Input

Allen-Bradley ControlLogix 1756-IH16I 125V DC Isolated Input Module

The 1756-IH16I is a 16-channel isolated DC input module from the Allen-Bradley ControlLogix series. This module features individually isolated inputs for 125V DC sink/source applications with an operating range of 90-146V DC. 

Product Overview

• Model: 1756-IH16I
• Inputs/Outputs: 16 Individually Isolated Inputs
• Voltage Category: 125V DC Sink/Source
• Operating Voltage Range: 90…146V DC

Electrical Specifications

• Backplane Current at 5 Volts: 125 milliamps
• Backplane Current at 24 Volts: 3 milliamps
• Total Backplane Power: 0.71 W

Environmental Specifications

• Power Dissipation (Max): 5 W @ 60 °C (140 °F)
• Thermal Dissipation: 17.05 BTU/hr
• Weight: 0.3 kg

Additional Features

• Removable Terminal Blocks: 1756-TBCH, 1756-TBS6H
• Isolation Voltage: 1500 Volts RMS (for 1 minute)
• Operating Temperature Range: -20 to 70 °C (-4 to 158 °F)
• Humidity Rating: 5 to 95% non-condensing
• Noise Immunity: NEMA 1

Package Includes

• 1x Allen-Bradley 1756-IH16I isolated DC input module
• 1x installation documentation

FAQ

Q1: How many inputs does the 1756-IH16I have and what is their configuration?

The 1756-IH16I features 16 individually isolated inputs for 125V DC sink/source applications with 90-146V DC operating range.

Q2: What is the isolation rating of this module?

It provides 1500V RMS isolation for 1 minute between channels, ensuring excellent protection against ground loops.

Q3: What is the operating temperature range and terminal block compatibility?

The module operates from -20°C to 70°C and is compatible with 1756-TBCH and 1756-TBS6H removable terminal blocks.