The Honeywell FTA-T-21 is a 16-channel Fail-Safe Digital Input Field Termination Assembly for FSC systems. It provides high-integrity signal processing for safety-critical applications with support for 125VAC and 150VDC inputs.
| Feature | Details |
| Brand | Honeywell |
| Model Number | FTA-T-21 |
| Module Type | Fail-Safe Digital Input Field Termination Assembly |
| System Series | Fail Safe Control (FSC) System |
| Input Capacity | 16 Channels |
| Maximum Voltage | 125VAC / 150VDC |
| Operating Temperature | -40°C to +85°C |
| Protection Rating | IP20 |
| Weight | 0.12 kg |
The Honeywell FTA-T-21 serves as a critical interface within the Fail Safe Control (FSC) architecture. This Field Termination Assembly (FTA) manages discrete signals for high-integrity safety applications. It bridges field sensors and the central logic controller to ensure emergency shutdown capabilities. Furthermore, the unit prioritizes system uptime by providing a stable signal path for industrial monitoring.
This module supports 16 independent digital input channels for high-density wiring. Its design handles diverse voltage requirements up to 125VAC or 150VDC. Consequently, the FTA-T-21 accommodates various sensor types and power configurations. The hardware maintains operational accuracy across a wide temperature spectrum from -40°C to +85°C.
The unit utilizes a compact panel-mounted footprint to optimize control cabinet space. High-grade terminal connectors prevent signal loss during high-vibration conditions. Additionally, the IP20-rated enclosure protects internal circuitry from particulate contamination and moisture. This robust construction significantly reduces the need for frequent hardware maintenance.
The FTA-T-21 integrates seamlessly with existing Honeywell SMS technology and DCS frameworks. This compatibility streamlines the installation process for both new builds and safety upgrades. Operators benefit from reduced commissioning time due to the straightforward plug-and-play header design. By utilizing this assembly, industrial plants enhance their overall safety integrity level (SIL) for critical processes.
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