PLCs, Power Supplies & Others

Product Overview

The Honeywell 900H03-0001 functions as a high-voltage digital output module specifically designed for the HC900 controller family. This module provides eight independent output channels capable of switching 120/240VAC loads in industrial control applications. We engineered the 900H03-0001 to deliver reliable on/off control for solenoids, contactors, indicators, and other AC-powered devices throughout manufacturing facilities.

Technical Specifications

Key Features and Benefits

• Eight High-Voltage Output Channels: The 900H03-0001 packs eight isolated relay outputs into a single module, maximizing I/O density for AC control applications. You can switch multiple loads independently without requiring additional interposing relays.

• Universal AC Switching Capability: Each output handles both 120VAC and 240VAC loads up to 2 amps continuously. This wide voltage range makes the module suitable for global installations with different line voltages.

• Robust Isolation for Industrial Environments: The module provides 1500 VAC isolation between channels and between outputs and the system backplane. Consequently, you can connect loads from different power sources without concern for ground loops or cross-channel interference.

• Visual Status Indication: Individual LED indicators for each channel show output state at a glance. This feature significantly simplifies troubleshooting and commissioning by providing immediate feedback on output operation.

• Field-Replaceable Terminals: Removable screw terminal blocks allow you to pre-wire field connections before module installation. Therefore, you can replace a module without disconnecting individual field wires, minimizing downtime.

Detailed Functional Description

The primary function of the Honeywell 900H03-0001 involves translating digital control signals from the HC900 controller into physical contact closures for AC loads. Specifically, when the controller energizes an output, the corresponding internal relay coil activates, closing its contacts and applying power to the field device. Each channel operates independently, allowing simultaneous control of multiple devices with different operating schedules. Furthermore, the relay outputs provide true isolation between the low-voltage control circuitry and the high-voltage field wiring, enhancing system safety and noise immunity.

Output Characteristics and Load Handling

We designed the output relays in the 900H03-0001 to handle a variety of industrial AC loads effectively. The silver alloy contacts with gold flash provide reliable switching for both high-current inductive loads and low-current signal-level applications. For motor starters and solenoid valves, the 8A inrush capability ensures reliable pull-in without contact welding. Additionally, the module’s outputs suit resistive loads like heaters and incandescent indicators perfectly, providing long electrical life under normal operating conditions.

Mechanical and Installation Details

The 900H03-0001 features a compact, modular form factor that installs directly into HC900 local or expansion I/O racks. Its front-mounted termination blocks provide easy access for field wiring, while the module’s keyed design prevents incorrect insertion into different I/O slots. Each channel’s terminal position includes clear labeling, simplifying wire termination and reducing installation errors. The module also includes a secure locking mechanism that holds it firmly in place under vibration.

Integration with HC900 Control Systems

The 900H03-0001 operates as an integral component within Honeywell’s HC900 controller ecosystem. It communicates with the controller CPU through the high-speed backplane, providing deterministic output updates for time-critical applications. Engineers can configure the module using HC900 Designer software, setting power-up states and fault responses for each channel. The module also supports forced output states for commissioning and troubleshooting, allowing manual control during system startup.

Common Industrial Applications

You will find the Honeywell 900H03-0001 deployed across numerous industries requiring reliable AC load switching:

Why Choose This Module?

Selecting the Honeywell 900H03-0001 means choosing a reliable, high-density solution for AC output control in HC900-based systems. Its eight channels provide excellent density for applications with multiple AC loads, while the robust relay outputs handle both high inrush and continuous currents with ease. The 1500 VAC isolation protects your control system from electrical transients originating in the field, enhancing overall system reliability. With individual status LEDs and removable terminals, this module simplifies both installation and ongoing maintenance. By integrating seamlessly into the HC900 platform, the 900H03-0001 helps you build a cohesive and efficient control system for your industrial applications.

Details