Description

The HONEYWELL 51303940-150 is a high-integrity safety controller module belonging to Honeywell’s renowned Safety Manager family, a dedicated fault-tolerant control system (FTCS) designed for process safety applications. This specific module acts as a central processing or communication node within the robust and certified safety instrumented system (SIS) architecture. The primary function of the HONEYWELL 51303940-150 is to execute pre-programmed safety logic with extreme reliability, continuously monitoring critical process parameters and initiating immediate emergency shutdowns or actions when pre-defined conditions are violated to prevent hazardous events, protect personnel, safeguard environmental assets, and avoid catastrophic equipment damage.

Engineered to meet rigorous international safety standards such as IEC 61508 and IEC 61511, this module is built upon a TÜV-certified platform capable of achieving Safety Integrity Level (SIL) 3. Its value is derived from its fault-tolerant design, which includes advanced diagnostics and redundancy capabilities that ensure operational continuity even in the event of an internal component failure. The HONEYWELL 51303940-150 is more than just a controller; it is the dependable guardian of your process facility. Integrating this genuine Honeywell module into your safety loop guarantees the performance and certification required for your most critical safety functions, providing unparalleled peace of mind and reinforcing your commitment to operational excellence and asset protection.

51303940-150 HONEYWELL

Technical Specifications

Parameter Name	Parameter Value
Product Model	51303940-150
Manufacturer	Honeywell
Product Type	Safety Manager Controller / Processing Module
Safety Integrity Level (SIL)	Capable of SIL 3 (System Dependent)
Certification	TÜV Rheinland certified per IEC 61508
Fault Tolerance	High (e.g., 1oo2D architecture)
Processor	Powerful 32-bit dedicated safety processor
Main Memory	Redundant and protected memory for application logic
Diagnostic Coverage	>99% as per SIL calculations
Communication Interfaces	Integrated proprietary safety network ports
Operating Temperature	0°C to +60°C (32°F to 140°F)
Storage Temperature	-40°C to +85°C (-40°F to +185°F)
Operating Humidity	5% to 95% non-condensing
Power Supply	Typically 24V DC (from redundant power supplies)

Main Features and Advantages

The HONEYWELL 51303940-150 is defined by its unwavering focus on functional safety and reliability. Its most critical feature is its certified hardware and software architecture, designed to detect, diagnose, and respond to internal faults automatically. This includes built-in self-test routines that continuously check the processor, memory, and I/O communication, ensuring the module is always ready to perform its safety duty. This high diagnostic coverage is a fundamental advantage, significantly reducing the probability of dangerous undetected failures and providing operators with clear diagnostics for maintenance.

Furthermore, the module offers seamless integration and robust performance. It is designed for native integration within the larger Honeywell ecosystem, including Experion PKS, enabling a unified operator experience for both basic process control and safety functions. The HONEYWELL 51303940-150 is engineered for extreme operational resilience, with components rated for industrial environments with electrical noise, vibration, and wide temperature swings. Its deterministic execution ensures predictable response times for safety functions, a non-negotiable requirement for effective emergency shutdowns. Using this genuine module ensures system integrity and maintains the formal validation of the entire safety instrumented function.

Application Field

The HONEYWELL 51303940-150 is deployed exclusively in industries where process safety is paramount and the consequences of failure are severe. Its primary application is in the oil and gas sector, including upstream platforms, midstream pipelines, and downstream refineries. Here, it serves as the core of Emergency Shutdown (ESD) systems, quickly isolating sections of the plant in response to overpressure, leaks, or fire. It is equally critical in Fire and Gas (F&G) systems, where it processes signals from gas and flame detectors to activate suppression systems and initiate alarms to protect human life.

Beyond oil and gas, the HONEYWELL 51303940-150 is essential in chemical and petrochemical plants, managing high-integrity shutdowns for reactive chemical processes. It is also found in power generation facilities, particularly in gas turbine control and protection systems, to prevent equipment damage under fault conditions. Any application that requires a certified, reliable, and fault-tolerant system to mitigate risks associated with hazardous processes will utilize a safety controller like the HONEYWELL 51303940-150 to ensure the highest levels of protection and compliance with international safety standards.

51303940-150 HONEYWELL

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HONEYWELL 51303945-200: A digital input (DI) module designed to interface with field devices like emergency stop buttons and pressure switches for the safety system.

HONEYWELL 51303946-200: A digital output (DO) module used to actuate final elements such as shutdown valves and alarm annunciators.

HONEYWELL 51303947-100: An analog input (AI) module for connecting transmitters measuring critical process variables (e.g., pressure, temperature).

HONEYWELL 51196655-100 (ACX633): A motion controller for critical machinery control that may interface with the SIS for equipment-level protection.