The IS200TRPLH1A – Terminal Board Trip Primary LG STM is a vital module used in GE Mark VI turbine control systems. It handles critical trip signals and facilitates reliable shutdown operations to protect turbine equipment during fault conditions.

At Evaflux Industrial Automation, we offer the IS200TRPLH1A in both UNUSED and REBUILT conditions. Each unit is thoroughly tested for quality and performance, ensuring safe integration into your existing turbine control system.

We understand the importance of timely replacements and maintenance. That’s why we maintain stock of this item for same-day shipping, helping to reduce downtime and support operational reliability. Our team is ready to provide expert assistance to meet your specific requirements.

For the best pricing and availability of IS200TRPLH1A – Terminal Board Trip Primary, reach out to Evaflux today. You’ll receive a response within 24 hours along with professional support.

The IS200TRPLH1A – Term BD Trip Primary LG STM is a rugged, mission-critical terminal board designed for primary overspeed trip control in large steam turbine systems, typically as part of the GE Mark VI / Speedtronic series. It serves as the interface module that delivers the negative side of the 125 VDC supply to trip solenoids, coordinating with the companion TREL board which handles the positive side

Key Features & Specifications

• Robust Circuit Protection: Incorporates MOVs, suppression circuits, voltage monitoring, fault isolation to maintain safe operation under adverse conditions.

• Integrated Relay Logic: Contains nine magnetic relays and relay logic to shape or gate trip commands according to system logic.

• Compatibility: Suitable for both GE Mark VI and Mark VIe turbine control environments.

Applications & Use Cases

The IS200TRPLH1A is employed primarily in large steam turbine control and safety systems. Its main role is in primary trip actuation, especially for overspeed protection, where fast, reliable, and redundant trip signal delivery is essential to protect turbine machinery and ensure safe shutdown in abnormal conditions. It is often paired with TREL boards for full trip circuit execution and integrated with turbine protection controllers (VTUR / PTUR).

In power plants, steam turbine installations, and industrial facilities using GE Speedtronic controls, this board serves as a key link in the safety chain, ensuring that when a turbine is commanded to trip, the solenoids are driven reliably with the appropriate redundancy and monitoring.

Benefits

• Redundancy & Safety: TMR and voting circuits add reliability to the trip path.

• Modular Integration: Designed to plug directly into existing Mark VI control cabinets.

• Comprehensive Protection: Voltage suppression, monitoring, and isolation help prevent false trips or circuit damage.

• Scalable: Supports up to three solenoids, ideal for multi-channel safety systems.

• Field Proven: Supported in legacy systems and maintained by many turbine controllers still in operation.