Original ICS TRIPLEX T8403 SIL3‑certified 40‑channel digital input module for Trusted safety system, hot‑swap spare part for ESD and fire‑gas protection systems.

Product Overview

T8403 is ICS TRIPLEX Trusted TMR triple‑modular‑redundant digital input module, UK origin. With 40 isolated 24VDC input channels, it collects discrete field signals for safety‑critical ESD and F&G systems, supports hot‑swap replacement for petrochemical and power plant safety control.

Key Features

• 40‑channel galvanically‑isolated 24VDC digital input
• TMR triple modular redundancy, SIL3 safety certification
• 1ms resolution SOE sequence‑of‑event recording
• Channel open‑circuit and short‑circuit diagnostic function
• Hot‑swap supported without system shutdown

• Front‑panel LED indicators for channel and module status

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Technical Specifications

• Brand: ICS TRIPLEX
• Model: T8403
• Series: Trusted T8000
• Country of Origin: United Kingdom
• Input: 10‑30VDC discrete signal
• Channel Count: 40 channels
• Isolation: 2500V reinforced isolation
• Operating Temp: ‑20℃ ~ +60℃
• Storage Temp: ‑40℃ ~ +85℃
• Humidity: 5‑95% non‑condensing

• Protection: IP20 (cabinet installation)

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Compatibility

Compatible with ICS TRIPLEX Trusted T8000 safety controller rack. Safety logic configuration is required after module replacement.