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IS400TDBTH6A

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General Electric IS400TDBTH6A is a Mark VIe TMR discrete I/O terminal board with 24 group-isolated 125 VDC inputs and 12 Form-C relay outputs.
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Technical specifications for IS400TDBTH6A

  • Manufacturer:
    General Electric
  • Part Number:
    IS400TDBTH6A
  • Product Family:
    GE Mark VIe Distributed I/O
  • Product Type:
    125 VDC TMR Discrete I/O Terminal Board
  • Stock:
    1
  • Functional Acronym:
    TDBT
  • Input Quantity:
    24 group-isolated contact inputs
  • Input Voltage Range:
    100–145 VDC floating
  • Relay Outputs:
    12 Form-C outputs
  • Required I/O Packs:
    Three PDIO packs
  • Terminal Blocks:
    Two 48-position blocks
  • Input Filter:
    4 ms hardware filter
  • Operating Temperature:
    -30 to +65 °C
  • Board Dimensions:
    17.8×33.02 cm
  • Mounting:
    DIN-rail or flat mounting
  • Field Block Assignment:
    TB1 relay / TB2 contact input
  • WROB Option:
    Relay expansion and fuse feedback
  • Tariff Code:
    8537101190
  • 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 Input Circuits Relay Outputs Diagnostics Mounting & Wiring

Features:

  • IS400TDBTH6A provides 24 group-isolated contact inputs for a floating 100–145 V dc wetting supply.
  • Twelve Form-C relay outputs are separated from the contact-input wiring.
  • Three PDIO packs are required for the documented TMR arrangement.
IS400TDBTH6A assigns the H6 contact-input circuits to TB2 and the relay-output connections to TB1.

A 4 ms hardware filter conditions each IS400TDBTH6A input before the PDIO processing path.

Wetting-voltage, relay-position, fuse, and electronic-ID checks on IS400TDBTH6A distinguish power, output, and configuration faults.

The General Electric IS400TDBTH6A 125 VDC TMR Discrete I/O Terminal Board may be available for purchase and technical support from Apter Power.
General Electric IS400TDBTH6A 125 VDC TMR Discrete I/O Terminal Board Manuals,Datasheets,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. All prices are shown in USD.

125 VDC Contact Input Circuits

  • Input count: Twenty-four group-isolated contact inputs are provided.
  • Wetting range: The H6 board accepts a floating 100–145 V dc supply.
  • Input current: Inputs 1–21 draw 2.55 mA; inputs 22–24 draw 10 mA.
  • Conditioning: A 4 ms hardware filter is applied before PDIO processing.

Form-C Relay Output Limits

  • Output count: Twelve Form-C relay channels are wired through TB1.
  • DC ratings: Maximum current is 3.15 A at 24 V dc, 1.2 A at 48 V dc, and 0.4 A at 125 V dc.
  • AC operation: The relays also support documented 120/240 V ac loads.
  • Optional board: WROB extends relay-output wiring and provides six hardware jumpers.

Input and Relay Diagnostics

  • Wetting supply: An alarm is generated below 40 percent of nominal wetting voltage.
  • Relay feedback: Each PDIO receives an independent indication of commanded relay position.
  • Fuse status: WROB fuse feedback is monitored when the option is installed.
  • Identity check: Each PDIO compares the electronic ID with the configured TDBT hardware and flags disagreement.

Mechanical and Wiring Boundaries

  • Mounting: The board supports DIN-rail or flat mounting.
  • Terminal blocks: Two removable 48-position blocks separate relay and input wiring.
  • Pack requirement: Three PDIO packs are required; single-pack operation is unsupported.
  • Environment: Board operation is specified from -30 °C through +65 °C.
Description
General Electric IS400TDBTH6A is the 125 V dc version of the TDBT triplex discrete input/output terminal board for Mark VIe control. It combines 24 group-isolated contact inputs with 12 Form-C relay outputs in a terminal assembly designed for three PDIO I/O packs.

The input section of IS400TDBTH6A operates from a floating 100–145 V dc wetting supply. TB2 carries the contact circuits: the first 21 inputs draw 2.55 mA and the last three draw 10 mA, while a 4 ms hardware filter and the H6 ac-rejection limit define the input-conditioning boundary.

Relay wiring for IS400TDBTH6A is placed on TB1, separate from the contact-input block. The twelve Form-C outputs support documented ac and dc loads, with limits that change by voltage, so the connected circuit must remain within the specified current for its operating level.

Three PDIO packs are required for correct operation of IS400TDBTH6A; a single-pack arrangement is not supported. Diagnostic coverage includes wetting-voltage monitoring, relay-position feedback to all three packs, fuse feedback when the WROB option is installed, and an electronic-ID mismatch check.
Alternative Names
IS400TDBTH6-A IS400TDBT-H6A IS400 TDBT H6A IS4OOTDBTH6A IS400TDBTHGA IS400TDBTH-6A IS400-TDBT-H6A IS400TDBT H6-A
Technical notes
Three PDIO packs are required for General Electric IS400TDBTH6A; TB1 carries the Form-C relay outputs, while TB2 carries the 125 VDC contact inputs.
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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.
For IS400TDBTH6A contact inputs, what wetting supply must be present?
The H6 input circuits on IS400TDBTH6A require a floating 100-145 V dc wetting supply.
Why will IS400TDBTH6A not support a single PDIO pack?
Its terminal-board architecture is assigned to three PDIO packs, so IS400TDBTH6A requires the documented TMR pack set.
On IS400TDBTH6A, which terminal block carries relay wiring and which carries contact inputs?
TB1 carries the twelve Form-C relay circuits, while the 24 group-isolated inputs on IS400TDBTH6A terminate at TB2.
Before connecting a load to an IS400TDBTH6A relay, what rating must be compared?
Compare the circuit voltage with the applicable IS400TDBTH6A contact-current limit because permitted current changes across the specified ac and dc voltage levels.
What diagnostic evidence points to a wetting-supply problem on IS400TDBTH6A?
When the monitored supply falls below 40 percent of nominal, IS400TDBTH6A reports the wetting-voltage alarm associated with the contact-input power path.
Are configuration jumpers located directly on IS400TDBTH6A?
IS400TDBTH6A has no terminal-board jumpers; the optional WROB relay-output board provides its own six hardware jumpers.