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Description：

The ICS Triplex T7481 Monitored Guarded Output Module is a high-integrity digital output module used in Trusted™ and fault-tolerant safety systems for critical control and shutdown applications. The module provides 16 monitored output channels arranged in two groups of eight channels and supports output voltages from 18 to 36 VDC. Certified for Safety Risk Class 5 applications, the T7481 is suitable for both single-module and dual-module safety architectures, providing reliable de-energize-to-trip functionality for safety-critical processes.

With a load capability of up to 2 A per channel, integrated fuse protection, fast 0.5 ms switching response, and 2500 V isolation, the module delivers dependable performance in demanding industrial environments. Advanced output monitoring continuously checks field circuits and helps detect load or fuse faults, enhancing system availability and operational safety. The T7481 is widely deployed in emergency shutdown (ESD), fire and gas, turbine control, and safety instrumented systems (SIS) across the oil and gas, petrochemical, power generation, and process industries.

Specification：

Frequently asked questions

Q1: What is the ICS Triplex T7481 Guarded Output Module used for?

A1: It is used to provide reliable digital output control for safety-critical and industrial applications.

Q2: How many output channels does the T7481 module provide?

A2: The T7481 module provides 16 outputs, arranged in 2 groups of 8 channels each.

Q3: What is the output voltage range of the T7481 module?

A3: The T7481 output voltage range is 18 to 36 VDC.

Q4: What is the T7481 operating temperature range?

A4: The T7481 operating temperature range is 0°C to +60°C.

Q5: What overvoltage protection does the T7481 module offer?

A5: It can withstand 70 VDC continuously and 100 VDC for up to 5 seconds.

Product Applications

Oil and Gas : Used in wellhead control systems, emergency shutdown (ESD) systems, and fire and gas detection (F&G) systems.

Chemical and Petrochemical Industries: Provides critical safety interlock protection in high-pressure, high-temperature, or flammable and explosive reactors and pipelines.

Power Generation and Nuclear Power: Monitors critical outputs of turbines, boilers, and cooling systems to prevent catastrophic equipment failures.

Metallurgy and Mining: Ensures emergency shutdown and failover operations in heavy machinery and high-temperature smelting processes.

Key Features

16 monitored guarded output channels

18–36 VDC operating voltage

Up to 2 A output current per channel

TÜV certified for Risk Class 5 safety applications

2500 V isolation protection

Fast 0.5 ms turn-on and turn-off response

Individual fuse protection for each output

Suitable for single or dual-module safety configurations

High immunity to industrial electrical interference

Ideal for SIS, ESD, and critical process control systems