Honeywell FC-TRO-0824 Digital Relay Output Module

Eight Relay Outputs for Discrete Control Applications

The Honeywell FC-TRO-0824 provides eight independent relay contact channels for switching external field devices. This module serves as a field termination assembly (FTA) within Honeywell Safety Manager and Experion PKS platforms. Each channel features a changeover contact with both normally open (NO) and normally closed (NC) terminals. The relay outputs offer electrical isolation between the control system and the field circuits. Status indicator LEDs on each channel clearly show the relay’s energized state for quick diagnostics.

Comprehensive Technical Specifications

Parameter	Specification
Model Number	FC-TRO-0824
Manufacturer	Honeywell
Product Type	Digital Relay Output Module / FTA
Output Channels	8 relay changeover contacts (NO/NC)
Nominal Input Voltage	24 V DC
Maximum Input Voltage	31 V DC
Relay Cut-in Voltage	19 V DC
Typical Input Current	27 mA at 24 V DC
Max Output Current	5 A per channel
Max Output Voltage (AC)	250 V AC
Max Output Voltage (DC)	300 V DC
Max Switched Load (AC)	1250 VA
Max Switched Load (DC)	150 W at 30 V DC
Module Dimensions	195 × 70 × 60 mm (L × W × H)
Weight	0.3 kg – 1.0 kg (varies by configuration)
Operating Temperature	-40°C to +70°C
Storage Temperature	-40°C to +85°C
Relative Humidity	5% to 95% (non-condensing)
Conformal Coating	Yes (enhances durability in harsh environments)
Certifications	CE, UL, TÜV, CSA, RoHS
Mounting	DIN rail (TS32 / TS35 × 7.5)
Country of Origin	USA

Construction and Protection Features

The FC-TRO-0824 features a robust industrial design with conformal coating for enhanced protection against moisture, dust, and corrosive atmospheres . Each output channel includes a 5 AT fuse for short-circuit protection . The module supports linear derating from 5 A at 25°C to 3.5 A at 70°C ambient temperature . Additionally, the isolation ratings reach 4000 V AC between coil and contact, ensuring reliable separation between control and field circuits .

System Integration and Applications

This module integrates seamlessly into Honeywell Safety Manager and Fail Safe Controller platforms through the SICC-0001/Lx system interconnection cable . The screw terminals accept wires up to 2.5 mm² (AWG 14) with a strip length of 7 mm . Applications span safety and shutdown systems, process automation, discrete signal control, and emergency shutdown systems . The FC-TRO-0824 provides reliable relay-based switching for solenoids, alarms, motor starters, valves, and indicators across demanding industrial environments.