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- Model: FC-TSRO-0824
- Brand: Honeywell
- Series: Safety Manager / FSC
- Core Function: Provides eight safety relay output channels
- Type: Digital Output Field Termination Assembly (FTA)
- Key Specs: 8 relay outputs; 24 VDC supply; SIL 3 application
- Safety Role: Interfaces safety-system outputs with field devices
- Lifecycle: Legacy product; current availability depends on surplus or replacement stock
Product Introduction
The HONEYWELL FC-TSRO-0824 is an 8-channel Digital Output Field Termination Assembly (FTA) used with Honeywell Safety Manager systems. It provides relay-based field output connections for safety-related applications, with Honeywell certification records identifying it as a digital output relay FTA for SIL 3 applications. The conformal-coated FC version is specifically listed in Honeywell’s Safety Manager certification documentation.
In a typical safety cabinet, this is the interface between the safety controller’s output architecture and the field wiring. Published references specify a 24 VDC supply and relay contact ratings including up to 250 VAC, 60 Hz, 5 A under applicable conditions. Some supplier records describe the assembly as a universal safety interface, but the Honeywell certification record is the better reference for identifying its actual safety-system role.
Key Technical Specifications
| Parameter | Specification |
|---|---|
| Model | FC-TSRO-0824 |
| Manufacturer | Honeywell |
| Product Family | Safety Manager / FSC |
| Product Type | Digital Output Field Termination Assembly |
| Number of Channels | 8 digital relay outputs |
| Safety Application | SIL 3 applications |
| Supply Voltage | 24 VDC |
| Output Type | Relay output |
| Maximum Contact Rating | Up to 250 VAC, 60 Hz, 5 A, depending on load conditions |
| Other Published Ratings | 24 VDC / 5 A; 48 VDC / 1 A; 110 VDC / 500 mA |
| Conformal Coating | Yes, FC version |
| Installation | Safety Manager FSC cabinet / termination assembly |
| Typical Function | Relay interface to field actuators and shutdown devices |
| Reported Dimensions | Approx. 216 × 139 × 64 mm |
| Supplier Shipping Weight | Approx. 2–3 kg, depending on packaging |
| Lifecycle | Legacy / discontinued in some aftermarket databases |
Honeywell’s official certification list identifies FC-TSRO-0824 as a digital output (relay) FTA for SIL 3 applications (8 channels) and distinguishes the conformal-coated FC variant from the FS version.
HONEYWELL FC-TSRO-0824
Key Features and Practical Value
- 8 relay output channels for safety-system field interfacing.
- 24 VDC supply architecture for compatible Safety Manager installations.
- Designed for safety-related digital output applications.
- Conformal-coated construction supports the FC version used in specified environmental applications.
- Relay contacts can switch AC or DC field loads within the applicable rating.
- Intended for dedicated Honeywell safety-system architecture rather than generic PLC output duty.
The important detail here is the word relay. This is not simply an eight-channel electronic transistor output card. The field-side switching characteristics, load type, and protection requirements need to match the actual application.
Typical Applications
Common applications include safety-system output interfaces for:
- Emergency shutdown (ESD) functions
- Shutdown valves and solenoids
- Machinery trip circuits
- Alarm and annunciation circuits
- Burner or fuel shutoff functions
- Process safety interlocks
Honeywell project documentation also shows FC-TSRO-0824 used as a Digital Output Relay FTA in Safety Manager cabinet layouts.
For MRO procurement, this distinction matters. A standard digital output module with the same channel count is not necessarily a functional substitute.
Related Models
FS-TSRO-0824 — Related 8-channel digital output relay FTA for SIL 3 applications. Honeywell documentation lists this as the standard non-conformal-coated version.
FS-TSRO-0824 V1.1 — Updated version of the same 8-channel relay FTA, identified separately in Honeywell certification records.
FC-TSRO-0824 CC V1.1 — Conformal-coated revision identified in Honeywell’s certified Safety Manager release records.
FC-GMDO08 — Honeywell digital output FTA appearing in Safety Manager cabinet documentation; it belongs to a different interface arrangement and should not be treated as a direct substitution without checking the wiring design.
Installation and Maintenance
Before replacement, record the complete part number, hardware revision, cabinet position, connected field loads, and termination wiring. Photograph the existing terminal arrangement. It takes minutes and can save hours.
Check the field load before energizing the replacement. Relay output ratings vary with AC/DC voltage and load characteristics, so inductive loads such as solenoid valves need suitable suppression and protection.
After installation, verify the supply voltage, relay operation, field continuity, output status, and safety-system diagnostics. For an SIS application, complete the site’s approved functional test and proof-test procedure before returning the safety function to service.
Do not treat an FTA replacement as a simple plug-and-play job when the field wiring serves a certified safety function.
Quality Inspection and Test Procedure
For New Original, New Surplus, used, or refurbished stock, inspection should be documented.
1. Inbound inspection
- Verify part number and serial number.
- Check labels and certification markings.
- Inspect terminals, relays, connectors, enclosure, and coating.
- Look for corrosion, contamination, impact damage, or previous repair evidence.
- Verify documentation and accessories where applicable.
2. Live Test
Use a compatible Honeywell Safety Manager / FSC test environment.
- Verify power-up condition.
- Check relay switching on representative channels.
- Confirm output status and diagnostics.
- Verify field-side continuity under controlled test conditions.
- Perform extended operation where the test setup permits.
- Generate a Test Report.
3. Electrical Testing
Verify supply input and relay contact continuity. Insulation or withstand testing should only be performed according to the Honeywell-approved procedure; do not apply arbitrary hipot limits to safety equipment.
4. Configuration Verification
Record hardware revision and available module identifiers. Preserve terminal and cabinet configuration photographs before shipment.
5. Final QC
After QC approval, package the assembly in appropriate antistatic and protective material, secure it against impact, and attach a dated inspection label. Test photos or video can be provided with the shipment record.
Technical Replacement Pitfalls
Relay contact rating mismatch: A 5 A rating does not mean every load is suitable. Motor and solenoid loads can have significant inrush or inductive effects.
Wrong FTA family: FC-TSRO-0824 and other Honeywell output FTAs may look similar while having different terminal assignments. Check the cabinet drawings.
Coating version mismatch: The FC version is conformal coated and is separately identified in Honeywell certification documentation. Do not assume FS and FC versions are interchangeable for every environmental requirement.
SIL application assumptions: The module’s certified role depends on the complete Safety Manager architecture. A component carrying a SIL-related certification does not make the entire safety function SIL 3 by itself.
ESD and wiring errors: Use proper ESD handling and verify every field terminal before power-up. Relay outputs are particularly unforgiving of a wrong terminal connection.
Procurement Guidance
For international MRO procurement, specify Honeywell FC-TSRO-0824 together with condition, revision, conformal-coating status, test status, warranty, country of origin, lead time, and Incoterms.
Current aftermarket listings show both new-stock and legacy units, while some distributors identify the part as discontinued. That means the quotation should explicitly state whether the item is New Original, New Surplus, Used, or Refurbished.
For customs documents, use a precise description such as “industrial safety-system digital output relay field termination assembly”. The final HS classification should be confirmed for the actual shipment and destination country.
Quick Conclusion
- FC-TSRO-0824 is an 8-channel Honeywell Safety Manager digital output relay FTA.
- It uses a 24 VDC supply and provides relay-based field output interfacing.
- Honeywell certification records identify the FC version for SIL 3 applications.
- The conformal-coated FC construction distinguishes it from the related FS version.
- For replacement, verify the FTA type, terminal assignment, environmental variant, connected load, and complete Safety Manager configuration before installation.
