Description

Honeywell FC-TSRO-08UNI Safe Relay Output FTA

Configured for safe relay output execution in Honeywell Safety Manager systems, the Honeywell FC-TSRO-08UNI (FC-TSRO-08UNI Safe Relay Output FTA) provides direct electrical switching for SIL3 field circuits.

Hardware Specifications

Parameter	Specification
Model	FC-TSRO-08UNI
Brand	Honeywell
Product Type	Safe Relay Output FTA
Origin	USA
Weight	0.14 kg
Dimensions	9 x 7 x 5.5 cm estimated shipping size
Operating Temp	Not specified
Power Consumption	Typically 40 mA at 24 V DC input
System Compatibility	Honeywell Safety Manager safety systems
Safety Class	Up to SIL3
Nominal Input Voltage	24 V DC
Maximum Input Voltage	36 V DC
Relay Pick-up Voltage	19.2 V DC
Input Current	Typically 40 mA at 24 V DC
Number of Output Channels	8 channels
Output Configuration	Three relay outputs
Maximum Output Current	2 A fused
Minimum Output Current	1 mA at 5 V
Maximum Output Voltage	250 V AC / 250 V DC
AC Voltage Rating	250 V
Field Contact Type	Fused normally open contact, 2 AT slow-acting
Status Indication	LED status indication
Approvals	CE, UL, CSA, TUV

Process Safety Relay Switching and Isolation Characteristics

The FC-TSRO-08UNI provides eight relay output channels for safe external power switching in SIL3 applications. Each output channel uses a fused normally open field contact to control external loads while maintaining defined electrical protection.

The module accepts a 24 V DC nominal input and supports operation up to 36 V DC. Therefore, it can interface with safety control circuits that require relay-based field execution. The three-relay arrangement supports output distribution for AC and DC field loads with a maximum voltage rating of 250 V.

Honeywell safety systems typically apply channel-to-channel isolation methods to separate field circuits and reduce signal interaction. In addition, relay output hardware supports fail-safe state execution by removing field energy when the safety logic commands a shutdown condition.

Frequently Asked Questions

Q: How many relay output channels does the FC-TSRO-08UNI provide?
A: The FC-TSRO-08UNI provides 8 relay output channels with fused normally open field contacts.

Q: What voltage range does the relay output support?
A: The relay output supports up to 250 V AC or 250 V DC with a maximum output current of 2 A using fused protection.

Q: Is the FC-TSRO-08UNI designed for SIL3 applications?
A: Yes. The module is specified for safety applications up to SIL3 and provides relay-based field switching functions.

Field Installation Guidelines

Install the FC-TSRO-08UNI according to the Honeywell Safety Manager hardware installation requirements.

• Verify the 24 V DC supply polarity before connecting field wiring.
• Separate relay output wiring from low-level signal cables to reduce electrical interference.
• Connect protective grounding according to the cabinet grounding design.
• Use appropriate cable shielding and terminate shields according to plant electrical standards.
• Check relay contact ratings before connecting external AC or DC loads.
• Inspect fuse ratings and field contact wiring before system commissioning.
• Confirm LED status indication after power application and safety logic validation.

Specifications

• Brand: Honeywell

Advantages

• High reliability in industrial environments
• Supports continuous operation
• Compatible with major PLC/DCS systems