Description

ICS Triplex T8451 Product Introduction
Brand: ICS Triplex (Rockwell Automation)
Model: T8451
Product Name: Trusted TMR 24 VDC Digital Output Module
Dimensions: 302 mm × 263 mm × 30 mm
Weight: Approximately 1.26 kg
Place of Origin: United Kingdom

T8451

HS Code: 85389091 (safety system digital output circuit module, for reference only, subject to local customs verification)
Operating Temperature: -5 °C to +60 °C cabinet ambient operating temperature; storage temperature ranges from -25 °C to +70 °C
Supply Voltage: System supply 20-32 VDC nominal 24 VDC via Trusted rack backplane; field operating voltage 18-32 VDC
Current Rating: 2 A continuous output current per channel; maximum 8 A for each independent power group; electronic short-circuit and over-current protection on every channel
Function: Provides 40 galvanically isolated digital output channels divided into independent power groups for safety-system discrete control. Triple-modular-redundant internal voting circuit eliminates single-point failure risks to satisfy SIL 3 safety requirements. Integrated per-channel diagnostics detect field open-circuit, short-circuit and load faults, reporting fault status to Trusted host controller and front-panel LED indicators. It supports hot-swap replacement while the safety rack remains powered, reducing system downtime during maintenance. Output channels drive 24 VDC field loads such as solenoid valves, trip relays and alarm annunciators for ESD and fire-gas safety loops. Channel-to-channel isolation suppresses electrical crosstalk and improves noise immunity in high-interference plant cabinet environments. It connects to the Trusted system backplane for internal safety bus communication and pairs with external termination units for field-device wiring. TÜV certified for safety-instrumented-system deployment within hazardous-area related process safety control cabinets.
Humidity Rating: 5-95 % non-condensing relative humidity for operation.
Installation: Slot-mount installation inside ICS Triplex Trusted system rack; field wiring implemented via external termination assemblies connected to module front-side connectors

T8451

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