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          For IS200TPROH1C purchasing assistance and relevant General Electric technical documentation, contact Apter Power.

        IS200TPROH1C

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        General Electric IS200TPROH1C is a Mark VIe backup-protection terminal board paired with the IS220PPROS1B I/O module for turbine trip signal handling.
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        Warranty Policy
        We provide 1 year warranty for all remaining parts.
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        Return Notice
        The warranty period is one year from the date of shipment, unless otherwise stated in the parts description. We guarantee that the project will not exhibit functional defects that may occur under normal operating conditions during the warranty period.
        In the event of a defect, we will send new equipment, repair equipment or refund the purchase price based on our availability. You must contact us to obtain a return authorization and return the defective device to us within 14 days of reporting the defect.
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        Apter Power offers a wide range of components, products and services related to industrial automation. We also supply new products from a variety of quality manufacturers.
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        Technical specifications for IS200TPROH1C

        • Manufacturer:
          General Electric
        • Part Number:
          IS200TPROH1C
        • Product Family:
          GE Mark VIe Distributed I/O
        • Product Type:
          Backup Protection Terminal Board
        • Stock:
          1
        • Associated I/O Module:
          IS220PPROS1B
        • System Supply:
          28 V dc, 0.37 A dc
        • Potential Transformer Input:
          0 to 138 V ac
        • PT Frequency Range:
          5 to 66 Hz
        • Speed Input Range:
          -15 to +15 V dc
        • Speed Sensor Power Output:
          24 V dc, 25 mA dc
        • Certified Ambient Range:
          -30 °C to +65 °C
        • Protection Role:
          Backup turbine protection
        • Tariff Code:
          8538900000
        • Country of origin:
          USA
        • Place of shipment:
          Xiamen,Fujian,China
        By purchasing this item, you agree to the Terms & Conditions, ApterPower is not an authorized distributor for listed manufacturers or tradenames and therefore the manufacturer's warranty does not apply. All our products come with ApterPower's 1-year warranty.

        More Information

        Overview Manuals Assembly Pairing Protection Signals Fault Isolation Product Applications

        Features:

        • Forms the TPRO field-termination element of the IS220PPROS1B backup-protection I/O assembly.
        • Accepts 0 to 138 V ac potential-transformer signals from 5 to 66 Hz.
        • Handles -15 to +15 V dc speed inputs and provides a separate 24 V dc, 25 mA speed-sensor supply.
        IS200TPROH1C combines potential-transformer and speed-sensor connections at the terminal-board level while keeping their electrical functions separate.

        The 28 V dc, 0.37 A assembly supply applies to the documented pairing of IS200TPROH1C with IS220PPROS1B.

        The dedicated speed-sensor output is an excitation source; the returning speed signal enters through its own -15 to +15 V dc input path.

        Quotation and availability support for General Electric IS200TPROH1C Backup Protection Terminal Board is available through Apter Power.
        General Electric IS200TPROH1C Backup Protection Terminal Board Manuals, Datasheets, Links Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.

        Checks that confirm the IS200TPROH1C assembly

        • Module identity: Match the full IS200TPROH1C code with the documented IS220PPROS1B pack before treating a similar TPRO board as interchangeable.
        • Supply basis: Verify the 28 V dc assembly supply at the connector so a power-path problem is not misdiagnosed as a terminal-board failure.
        • Field-circuit map: Preserve PT inputs, speed returns, and the separate sensor-excitation conductors by terminal number during transfer.
        • Release check: Compare the restored indications with the cabinet drawings and the undisturbed protection channels before returning the assembly to service.

        How IS200TPROH1C separates protection signals

        • Sensor power: The dedicated 24 V dc, 25 mA output can be measured without assuming that a healthy supply also proves a healthy speed return.
        • Speed return: Inspect the bipolar signal at the board and again at the connected PPRO path to localize an open, short, or acquisition fault.
        • PT input: Check both voltage and frequency at the assigned terminals because an in-range voltage with an unsuitable frequency can still produce an unusable protection input.

        Fault evidence to collect before changing IS200TPROH1C

        • Powered sensor with no speed: Record excitation voltage, return-signal value, connector condition, and the corresponding PPRO indication as four separate observations.
        • Missing PT indication: Trace the field source, terminal continuity, measured frequency, and input-channel response rather than replacing the board from the alarm alone.
        • Several channels lost together: Examine the common 28 V dc supply and board-to-module connection before investigating individual sensors.
        • Intermittent event: Capture trend time, turbine state, vibration or connector disturbance, and which independent paths remained normal.

        Where IS200TPROH1C fits in the protection system

        • Backup protection: The board terminates speed and potential-transformer circuits for the Mark VIe backup turbine-protection function.
        • PPRO-based cabinets: It is appropriate when the installed design explicitly pairs the H1C board with IS220PPROS1B and preserves the documented signal allocation.
        • Maintenance boundary: Bench testing the terminal board alone cannot prove the sensor, field cable, I/O pack, and configured trip logic as a complete path.
        Description
        General Electric IS200TPROH1C Backup Protection Terminal Board provides the field termination used by the Mark VIe backup turbine-protection I/O path with the IS220PPROS1B module.

        The certified IS200TPROH1C assembly operates from a 28 V dc, 0.37 A supply and accepts potential-transformer inputs from 0 to 138 V ac over 5 to 66 Hz.

        Speed inputs on IS200TPROH1C accommodate -15 to +15 V dc signals, while a separate 24 V dc, 25 mA output supplies excitation for a connected speed sensor.

        Potential-transformer measurement, speed-signal return, and sensor excitation remain distinct circuits on IS200TPROH1C before they are presented to the associated PPRO protection I/O module.
        Alternative Names
        IS200-TPRO-H1C IS 200 TPRO H1C GE IS200TPROH1C GE Mark VIe IS200TPROH1C IS200TPRO H1C IS2O0TPROH1C IS200TPR0H1C IS200TPROHIC
        Technical notes
        IS200TPROH1C provides dedicated 24 V dc speed-sensor excitation, so field-loop loading must remain within the documented 25 mA output limit.
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        FAQS

        The following is a list of questions commonly asked by our customers. Please contact us if you have a question about our process that is not answered below.
        VIEW ALL FAQS
        Why can IS200TPROH1C still show a speed-channel fault when the connected sensor is powered?
        IS200TPROH1C separates the 24 V dc sensor-excitation output from the returning speed input, so verify both paths independently before replacing the terminal board.
        Which checks reduce the risk of fitting the wrong board in place of IS200TPROH1C?
        Confirm the uninterrupted IS200TPROH1C catalog number, its backup-protection role, and the documented IS220PPROS1B pairing instead of relying on a similar board layout.
        How should a missing potential-transformer indication at IS200TPROH1C be traced?
        Measure the signal at the IS200TPROH1C termination and check both amplitude and frequency, because an apparently intact cable can still deliver a value outside the accepted PT range.
        Can IS200TPROH1C be tested as though it were a standalone protection controller?
        No; IS200TPROH1C is terminal hardware within the backup turbine-protection I/O assembly, so diagnosis must include the associated IS220PPROS1B module and field circuit.
        When IS200TPROH1C speed feedback is intermittent, what evidence should be captured first?
        Record the IS200TPROH1C speed-sensor supply and returning speed signal separately under the same operating condition, which helps distinguish excitation loss from signal-path instability.
        Why should the mating connection be checked after an IS200TPROH1C replacement?
        IS200TPROH1C and its associated I/O module form a defined certified combination, so an incomplete or mismatched connection can leave protection inputs unavailable despite a correct board number.
        What should rule out a suspected IS200TPROH1C potential-transformer circuit before board replacement?
        If the IS200TPROH1C terminal measurement is outside 0 to 138 V ac or 5 to 66 Hz, correct the field signal condition before treating the board as faulty.

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