Allen-Bradley 1756-IH16I Digital Input Module

Series#: AllenBradley

Product Details

1756-IH16I – High-Density 16-Point Isolated AC Input Module for Allen-Bradley ControlLogix systems.
16 individually isolated input channels for superior noise immunity and signal integrity.
Supports 120V/240V AC input voltage range, ideal for industrial machine monitoring.
Hot-swappable design under ControlLogix platform, reducing downtime during maintenance.
Built-in diagnostic LEDs for per-channel status indication and fault detection.
Compatible with 1756 backplane and all ControlLogix controllers (L6x, L7x, L8x series).
100% Genuine and New, rigorously inspected before international dispatch.

Specification

The Allen-Bradley 1756-IH16I is a high-performance isolated AC input module designed for the ControlLogix platform, offering 16 individually isolated channels to handle industrial AC signals with exceptional reliability. Each channel provides galvanic isolation, ensuring robust performance in electrically noisy environments such as motor control centers, power distribution systems, and heavy machinery monitoring. This module is a critical component for applications requiring precise detection of AC signals from limit switches, push buttons, and proximity sensors, while maintaining safety and signal integrity. With its hot-swappable capability and seamless integration with ControlLogix controllers, the 1756-IH16I minimizes system downtime and simplifies field wiring, making it a trusted choice for global automation engineers.

Parameter	Specification
Product Type	Isolated AC Input Module
Series	ControlLogix (1756)
Number of Inputs	16 (individually isolated)
Input Voltage Range	85-265V AC (nominal 120V/240V AC)
Input Frequency	47-63 Hz
Input Current (per channel)	10 mA typical at 120V AC
Isolation Voltage	1500V AC between channel and backplane
Off-State Voltage	Max 30V AC
On-State Voltage	Min 60V AC
Response Time (ON to OFF)	20 ms typical
Response Time (OFF to ON)	20 ms typical
Backplane Current (5V)	150 mA
Backplane Current (24V)	0 mA (module powered from input side)
Power Dissipation	2.5 W maximum
Thermal Dissipation	8.5 BTU/hr maximum
Operating Temperature	0°C to 60°C (32°F to 140°F)
Storage Temperature	-40°C to 85°C (-40°F to 185°F)
Relative Humidity	5% to 95% non-condensing
Vibration Resistance	2 g Standard Models 10-500 Hz (operational)
Shock Resistance	30 g (operational)
Wiring Type	Removable terminal block (1756-TBCH or 1756-TBS6H)
LED Indicators	16 green/red per-channel status, 1 module status (OK/FAULT)
Keying	Electronic keying (compatible with standard ControlLogix)
Standards Compliance	CE, UL, CSA, RoHS, ATEX (Zone 2)
Weight	Approximately 0.35 kg (0.77 lb)
Dimensions (H x W x D)	144 mm x 35 mm x 105 mm (5.67 in x 1.38 in x 4.13 in)