ICS Triplex T8901 T8902 T8903 Fuse Module, 10 Off 50MA, 10 Off 315MA & 10 Off 2A

The ICS Triplex T8901 T8902 T8903 Fuse Module is designed for dependable circuit protection and power distribution in industrial control and safety systems. The module provides a nominal output voltage of 24 V dc and supports a maximum load current of 0.5 A per channel, ensuring stable and protected operation for connected field devices.The module features a current draw of 165 mA at 24 V dc with power dissipation of ≤ 3 W, enabling efficient performance in continuous industrial applications. Channel-to-bus isolation is rated at 500 V dc, providing enhanced electrical protection and improved system reliability in critical installations.Engineered for industrial environments, the module operates within a temperature range of 0°C to +60°C and supports storage temperatures from -40°C to +85°C. It is also designed to withstand humidity levels from 5% to 95% RH non-condensing, making it suitable for demanding operating conditions.The ICS Triplex T8901 T8902 T8903 Fuse Module is supplied with 10 off 50 mA fuses, 10 off 315 mA fuses, and 10 off 2 A fuses to support flexible protection requirements across multiple industrial applications.

Model: T8901 T8902 T8903
Product Type: Trusted™ Fuse Module
Circuit Organization: Grouped fused channel architecture
TMR 24V DC/48V DC
40 TMR output channels per Module
Fuse Configuration:

• 10 × 50 mA fuses
• 10 × 315 mA fuses
• 10 × 2 A fuses

Output Voltage: 24 V dc nominal
Max. Load Current: 0.5 A per channel
Module Current Draw: 165 mA @ 24 V dc
Power Dissipation: ≤ 3 W
Isolation: 500 V dc channel-to-bus
Operating Temperature: 0°C to +60°C
Storage Temperature: -40°C to +85°C
Humidity: 5-95% RH non-condensing

Process instrumentation protection systems
Oil and gas production facilities
Petrochemical process plants
Offshore automation systems
Power generation control systems
Industrial cabinet protection architectures
High-integrity automation systems
Critical infrastructure process control

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• Segmented Auxiliary Current Apportionment Grid: The T8901 T8902 T8903 provides multi-level fuse protection for Trusted field circuits, serving as a high-integrity electrical distribution layer that shields individual field instrument loops from localized overcurrent stress.
• Native Subsystem Interface Alignment: Designed to integrate flawlessly into existing marshaling networks without custom wiring workarounds, the card is completely compatible with Trusted FTAs and auxiliary interface modules.
• Tri-Tiered Current Scaling Architecture: Engineered to handle diverse field instrument loads on a single footprint, the T8901 T8902 T8903 includes 30 fused channels with three different current ratings, allowing precise overcurrent matching across varying device types.
• Zoned Fuse Layout Organization: Shifting away from chaotic point-to-point panel wiring, the board layout improves maintainability through grouped fuse organization, allowing plant engineering crews to audit entire distribution sectors at a glance.
• Asymmetric Sourcing Protection Matrix: Accommodating both low-power loops and heavy-duty actuators simultaneously, the T8901 T8902 T8903 supports selective protection of low-current and high-current devices, preventing minor instrument faults from tripping heavy sub-busses.
• Thermal-Sacrificial Overload Safeguards: Operating as an immediate physical break zone against field-side insulation breakdown, the T8901 T8902 T8903 protects field wiring against overload and short-circuit conditions, catching dangerous ground faults before they warp copper traces.

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