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The FC-TELD-0001 functions as a 24 VDC Universal Input/Output earth leakage sensor within industrial Safety Instrumented Systems. The hardware installation location is on the UIO field termination assembly inside the cabinet enclosure, where it establishes a continuous monitoring connection with the 24 VDC field diagnostic lines.
TÜV approved for safety standards
Compatible with RUSLS channels
Integrates with Honeywell safety systems
The FC-TELD-0001 executes the physical task of measuring current differentials and identifying ground faults or degradation in insulation tracking across external instrumentation loops. Upon encountering an earth leakage condition, the internal circuit shifts its signal state to notify the Safety Manager controller via the UIO backplane interface, enabling central system indicators to register the fault location without executing a physical interruption of the main line power. The physical board assembly includes a factory-applied conformal coating layer that acts as a barrier against atmospheric moisture, dust layer accumulation, and chemical pollution degree 2 contaminants.
The FC-TELD-0001 operates within an ambient environment temperature range of -40°C to +70°C (-40°F to 158°F) and handles non-condensing relative humidity parameters from 5% to 95%. For field wiring integration, the module incorporates dedicated termination points that receive standard industrial wire gauges, routing the data output back through the system network without adding self-power load. The hardware holds official compliance markings for industrial enclosures, carrying safety agency documentation from CE and UL standards alongside ATEX and IECEx certifications for placement within Class I, Division 2 hazardous operational locations.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Honeywell FC-TELD-0001 Earth Leakage Detector Terminal Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Oil & Gas Exploration and Production
Used in offshore drilling platforms and onshore wellhead control cabinets to monitor the insulation status of 24V DC control loops within Emergency Shutdown Systems (ESD) in real time, preventing latent DC ground faults caused by cable dampness in high salt-spray marine environments.
Petrochemical & Refining
Used inside safety cabinets of core units like hydrocracking and catalytic cracking to monitor micro insulation leakage currents caused by water ingress in field explosion-proof solenoid valves or sealing failures of junction boxes.
Thermal Power Generation
Monitors earth insulation of DC busbars for critical trip loops (MFT) in steam turbine control systems and Boiler Management Systems (BMS) to prevent protection failure-to-trip caused by accumulated single-point ground faults.
Nuclear Power & Nuclear Fuel Cycle
Used in ungrounded floating DC power networks of nuclear power plant safety-class or auxiliary measurement and control cabinets (such as control rod drives or valve linkage loops) to provide highly sensitive early warnings for leakage and faults.
Metallurgy & Iron and Steel Industry
Monitors insulation aging and leakage in long-distance cables of sensors and actuators inside high-temperature, high-dust control cabinets of blast furnaces and converters, avoiding accidental furnace shutdowns caused by single-point grounding.
Pharmaceuticals & Biotechnology
Captures micro-ampere level DC leakage currents caused by acid/alkali cleaning fluid corroding cables inside automation control panels for cleanrooms, material conveying, and bioreactor systems to ensure continuous production.
When using the FC-TELD-0001, ensure it is mounted correctly onto the compatible UIO field termination assembly and that all field wiring parameters match standard industrial wire gauges to prevent loose connection contacts. Regularly check the ambient cabinet environment to maintain operations within the mandated -40°C to +70°C temperature range and 5% to 95% non-condensing relative humidity parameters, avoiding pollution levels that exceed degree 2 limitations.
Do not treat this device as a circuit breaker or power interrupter; it functions strictly as a sensor to notify the safety controller of ground faults, meaning main line power must be managed independently during a fault event. For hazardous Class I, Division 2 locations, verify that the enclosure integrity remains uncompromised to preserve the protections provided by the board's factory-applied conformal coating.
Alternative Names
Alternative Names
FC TELD 0001FC-TELD-OOO1FC-TELD-000IFC-TELD-OOOI
Technical notes
Technical notes
The Honeywell FC-TELD-0001 operates as a 24 VDC Universal Input/Output (UIO) Earth Leakage Sensor within Safety Instrumented Systems (SIS). This hardware continuously monitors 24 VDC field lines to detect ground faults and earth leakage conditions, transmitting status signals to the safety controller without interrupting line power. The conformal-coated module operates within a standard industrial temperature range of -40°C to +70°C and connects directly to compatible UIO termination assemblies.
It is an earth leakage and ground fault detector terminal belonging to the Honeywell Safety Manager system, specifically designed to monitor insulation leakage in DC power supply loops.
What is the core prevention purpose of FC-TELD-0001?
Its core purpose is to prevent DC ground faults caused by aging cable insulation or water ingress in industrial fields, thereby avoiding false trips or failures-to-trip in safety control loops.
How to use products like FC-TELD-0001 correctly?
It must be connected in series or parallel into the 24V DC or 5V DC power bus loops to be monitored, and then its diagnostic output signal is connected to a specific channel of a universal I/O module.
Why must industrial safety systems be equipped with a leakage detector like FC-TELD-0001?
Because in ungrounded floating DC systems, a single-point ground fault will not cause immediate equipment shutdown, but if not detected in time, a second ground fault will cause a severe short circuit.
What is the basic mounting method for FC-TELD-0001?
It adopts a standard industrial terminal block modular structural design and is typically snapped directly onto standard DIN rails inside control cabinets.
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