DS200TCEBG1BAA - Protective Termination Expander Board

DS200TCEBG1BAA - Protective Termination Expander Board DS200TCEBG1BAA - Protective Termination Expander Board

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Part Number: DS200TCEBG1BAA
Manufacturer: General Electric
Series: Mark V LM
Product Type: Protective Termination Expander Board
Power Requirements: +5 V dc, 6 A
Core Slot: P1
TCEB Connectors: JMP, JU, JV, JVA, JWX, JPU, JPV
Operating temperature: -30 to +65°C
Size: 15.9 cm high x 17.8 cm
Repair: 3-7 Day
Availability: In Stock
Country of Origin: United States
Manual: GEH6153


DS200TCEBG1BAA is a Protective Termination Expander Board manufactured and designed by General Electric as part of the Mark V LM Series used in GE Speedtronic Control Systems. The Protective Termination Expander Board (TCEB), located in the core, scales the PT and CT signals used by the TCCB board in the core. These signals are used for the generator and bus voltages and the line current and are landed on the PTBA terminal board. Signals for emergency overspeed and flame detection come from the PTBA terminal board and are passed through the TCEB board to the TCEA boards for processing. The 335 V DC needed for the flame detector devices passes across this board from the TCEA boards, is conditioned, sent to the PTBA terminal board,, and out to the sensors. The alarm horn for the Mark V LM is also located on the TCEB board.


  • JKX/Y/Z - Carries the emergency overspeed magnetic pick-up signals and flame detection signals to the TCEA boards in locations , , and respectively.
  • JMP - Carries the PT and CT signals to the TCCB board in the core.
  • JU - Carries the magnetic pickup and flame-detect signals from the PTBA terminal
  • JV - Carries the PT and CT signals from the PTBA terminal board.
  • JVA - Carries the 335 V DC to the PTBA terminal board for the UV flame detector devices.
  • JWX/Y/Z - Carries the 335 V dc from the TCEA board and conditions the signal before the TCEB board writes the 335 V dc to the PTBA terminal board via the JVA connector.


  • Overvoltage Protection: Protects against voltage spikes or surges that could damage connected devices or components.
  • Overcurrent Protection: Safeguards against excessive current flow that could lead to overheating or damage.
  • Short Circuit Protection: Detects and responds to short circuits, preventing potential damage.
  • EMI/RFI Filtering: Reduces electromagnetic interference (EMI) and radio-frequency interference (RFI) to enhance signal quality.
  • Temperature Monitoring: Monitors temperature levels to prevent overheating and ensures optimal operating conditions.
  • Fault Indication: Provides visual or audible indicators to signal the occurrence of a fault or protection event.
  • Isolation: Offers electrical isolation between different sections of the circuit for added protection.
  • Compatibility with Standard Connectors: Ensures compatibility with standard termination connectors for ease of integration.
  • Resettable Protection Devices: Uses resettable fuses or circuit breakers that can be reset after a fault condition is resolved.

WOC has the largest stock of GE Speedtronic Control System Replacement Parts. We can also repair your faulty boards. WORLD OF CONTROLS can also supply unused and rebuilt backed-up with a warranty. Our team of experts is available round the clock to support your OEM needs. Our team of experts at WOC is happy to assist you with any of your automation requirements. For pricing and availability on any parts and repairs, kindly get in touch with our team by phone or email.


What is a Protective Termination Expander Board?

A Protective Termination Expander Board is an electronic component designed to enhance protection at termination points within a system. It helps safeguard connected devices from overvoltage, overcurrent, short circuits, and other potential electrical issues.

What applications are suitable for Protective Termination Expander Boards?

These boards are commonly used in electronic systems, industrial equipment, power distribution, and any application where protecting termination points from electrical anomalies is critical.

How does a Protective Termination Expander Board protect against overvoltage?

The board typically incorporates overvoltage protection components such as transient voltage suppressors or varistors that divert excessive voltage away from the protected circuit, preventing damage.