PLCs, Power Supplies & Others

Core Function for Safety-Critical Control

The Honeywell 51202921-100 is an 8-channel digital output module designed for safety-critical applications. This module drives 24VDC loads, such as solenoid valves and relays, with a focus on fail-safe operation. If the module itself fails, all outputs automatically transition to a predefined safe state. Consequently, it provides reliable and safe control in industrial systems where failure consequences are severe.

High-Current Output and Robust Isolation

Each of the eight output channels can deliver up to 2 amps of continuous current. The module provides high-voltage isolation of 2500 VDC between the logic and field sides for protection. The 51202921-100 supports a total load power of 13 watts across all active channels. Furthermore, its rugged enclosure protects against dust, moisture, and vibration in harsh plant environments.

Detailed Technical Specifications

This module accepts a wide-range AC input voltage for flexible power sourcing in global installations. Its compact design offers high output density while maintaining operational safety. The following table details its complete electrical, physical, and environmental parameters.

Application in Industrial Safety Systems

Use this module in safety instrumented systems (SIS) and critical shutdown logic to control final elements. It is ideal for plant automation, process control, and machinery where output integrity is paramount. The Honeywell 51202921-100 ensures that controlled equipment moves to a safe condition upon any module fault. Therefore, it is a key component for building compliant and reliable safety solutions in oil & gas, chemical, and power generation.

Details