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We provide 1 year warranty for all remaining parts.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
We have been working hard to update our inventory. If we have stock or parts available for new factory purchases, you can contact the order online.
If we do not currently have an inventory, the displayed quantity will show "Ask". Please create an online quote or contact us by phone, fax or email to check availability.
Amikon offers a wide range of components, products and services related to industrial automation. We have a large surplus of stocks and are also distributors of new products from a variety of quality manufacturers.
Technical specifications for T7481A
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Product ModelT7481A
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Product ParametersMonitored Guarded Output Module
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Tariff Code8537101190
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Country of originUSA
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Place of shipmentXiamen, China
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In stock1 unit
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Estimated Shipping Size3.3x26.4x32.7cm
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ManufacturerICS Triplex
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Weight1.6 kg
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Field Power Supply24 VDC
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Number of Outputs16 outputs arranged in two groups of eight
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Isolation VoltageMinimum 2500 VAC
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Operating Temperature-20°C to +70°C
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Storage Temperature-40°C to +85°C
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Relative Humidity0–95% Non-Condensing
Description
The ICS Triplex T7481A Guarded Output Module is a high-integrity monitored digital output module developed for safety-critical industrial automation and protection systems. As part of the Trusted™ fault-tolerant control platform, the module provides guarded output control with continuous diagnostics, fault detection, and output line monitoring to ensure reliable operation in applications where process safety and system availability are essential.
Alternative Names
T7481
T748IA
T7481A
T7A81
Information
Overview
Manuals
Application Notes
Product Applications
Pre-Installation Handling & Safety
Features:
- Monitored Guarded Digital Output Module
- Trusted TMR
- 24 V DC nominal
Guarded outputs on the T7481A include hardware interlocks that monitor internal switching components. This monitoring verifies that semiconductor switches have not failed in a manner that could cause a load to energize unintentionally. The module injects low-level diagnostic pulses into the field loop to verify continuity without actuating the load, enabling real-time detection of open-circuit or short-circuit wiring faults. This line monitoring capability is particularly important for solenoid-valve loads in ESD loops, where wiring integrity must be verified continuously.
The T7481A ICS Triplex Guarded Output Module may still be available for purchase and support from Amikon Limited beyond End-Of-Life (EOL) by the manufacturer (OEM).
ICS Triplex T7481A Guarded Output Module Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
Configuration Modes: Supports either single-module fail-safe (1oo1) configurations or dual-module fault-tolerant (2oo2) configurations.
Safety & Fault Tolerance: Certified for "de-energize to trip" configurations. It can also be used in "energize to trip" applications under strict conditions defined by system architecture
Error Handling & Latching: Application logic must force outputs to a safe state upon error detection. Failed outputs require error bit latching, which dictates a manual reset only after the fault is cleared.
- Oil & Gas and Refining:Safeguards high-pressure volatile processes
- Power Generation:Emergency trip & boiler/nuclear auxiliary controls
- Chemical and Petrochemical Processing:Strict "de-energize to trip" safety
- Burner Management Systems (BMS):Safety shutoff valves for furnaces/boilers
- Fire and Gas Systems (FGS):Deluge, alarms & chemical suppression
This content has been produced using multiple sources.Amikon takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
ESD Protection: Use electro-static discharge (ESD) wrist straps. The T7481 contains static-sensitive components that can fail prematurely if mishandled.
Cabinet Labeling: Ensure the exterior surface of all cabinet doors contains highly visible labels cautioning personnel to maintain anti-static compliance before touching modules.
Housing Rule: Never attempt to remove or open the metal module housing. Doing so voids certifications and risks component misalignment.
Verification: Document and double-check the module type, revision number, and serial numbers before sliding the unit into a chassis slot.
Technical notes
The module incorporates redundant output architecture and advanced monitoring functions that help prevent unintended field device activation caused by internal failures. It continuously supervises output circuits and field wiring, detecting open circuits, short circuits, fuse faults, and abnormal load conditions. The T7481A is commonly deployed in emergency shutdown systems (ESD), fire and gas systems (F&G), turbine protection systems, process safety systems, and critical industrial control applications.
FAQs
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What is the ICS Triplex T7481A?
+The ICS Triplex T7481A is a 24V DC Monitored Guarded Digital Output Module designed for Regent/Regent+Plus low-density I/O within Trusted safety systems. -
Is the T7481A fault-tolerant?
+Yes, it supports fail-safe single-module (1oo1) or fault-tolerant dual-module (2oo2) configurations. When used in tandem, it provides redundancy for high-availability requirements. -
What is the primary function of the T7481A?
+It continually checks for faults in the output loop (such as open or short circuits) and guards the outputs against overloads, protecting both personnel and industrial equipment
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