Honeywell FS-TSRO-0824 Digital Output Relay FTA

The Honeywell FS-TSRO-0824, also cataloged as the TSRO-0824 Digital Output (Relay) Field Termination Assembly, operates as a dedicated hardware component for relay-based contact execution within Honeywell FSC and Safety Manager platforms.

Hardware Specifications

Channel-to-Channel Isolation and Relay Loop Execution

The field termination assembly routes control signals through 8 electro-mechanical relay circuits, converting internal 24 VDC driving logic into isolated high-capacity switching paths. Galvanic isolation between drive electronics and field relay contacts protects system backplane components against field-side electrical transients. Integrated status LEDs provide channel-level optical verification during state switching. Individual 5 A slow-acting fuses defend against overcurrent conditions, maintaining loop integrity across SIL 3 safety instrumented functions.

Frequently Asked Questions

Q: What are the maximum switching voltage and load limits for the relay channels?

A: Each channel supports up to 250 VAC or 250 VDC, handling a maximum switched power load of 1250 VA (AC) or 150 W (DC).

Q: How are short-circuit conditions on individual field outputs contained?

A: Each output channel integrates an onboard 5 A slow-acting fuse (5 x 20 mm) that isolates overcurrent faults without compromising adjacent relay loops.

Q: Which DIN-rail standard accommodates physical installation of the FTA?

A: The module mounts directly onto TS32 or TS35 x 7.5 mm DIN rails, occupying approximately 301 mm of total rail length.

Field Installation Guidelines

Mount the assembly securely onto the DIN rail inside an earthed enclosure before making field terminations. Strip incoming field conductors to exactly 7 mm and secure them into screw terminals using a calibrated torque driver set to 0.5 Nm. Route AC/DC load cabling separately from low-voltage logic signal wiring to prevent electromagnetic cross-talk. Connect all cable shields to the main panel grounding bus.