Product Overview

The IS200TRLYH1BGG is a high-integrity Relay Output Terminal Board engineered specifically for the GE Mark VIe control platform. Serving as a primary interface for turbine protection and control logic, this module utilizes a Triple Modular Redundant (TMR) architecture to ensure fault-tolerant operation. It features a sophisticated 2-out-of-3 (2oo3) contact voting circuit across 12 relay output channels, utilizing a total of 36 sealed magnetic relays (12 each for the R, S, and T branches). This design ensures that the failure of a single relay or I/O processor does not result in a false trip or a failure to respond, making it an indispensable safety component for mission-critical power generation infrastructure.

Hardware Infrastructure and Technical Profile

• Logic Architecture Triple Modular Redundant (TMR) with contact voting

• Relay Configuration 12 voted channels via 36 onboard sealed relays

• Field Voltage Compatibility Supports 24V DC, 125V DC, or 115V AC field power

• Contact Type Form A (Normally Open) voted contacts

• Switching Capacity Rated for up to 10A current handling

• System Connectivity JR1, JS1, and JT1 connectors for R/S/T I/O processor interfacing

• Physical Installation DIN-rail mountable with dual terminal blocks for #12 AWG wiring

• Environmental Tolerance Rated for operation between -40°C and +85°C

• Mass 1.42 kg

• Dimensions 33.0 cm x 17.8 cm x 5.5 cm

• Safety Certification Suitable for Class 1 Division 2 hazardous locations

Critical Control Applications and Scenarios

The IS200TRLYH1BGG is deployed in environments where deterministic safety and maximum uptime are the highest priorities:

Turbine Emergency Trip SystemsManaging the primary solenoid valves for steam and gas turbines, where the Form A fail-safe configuration ensures the system de-energizes to a safe state upon loss of power or signal.

High-Availability Power GenerationExecuting relay logic within GE Mark VIe systems to control auxiliaries like lube oil pumps and cooling fans, preventing localized faults from causing a full plant shutdown.

Generator Protection InterfacingActs as the physical termination point for trip signals heading to generator breakers, utilizing the TMR voting circuit to eliminate the risk of nuisance tripping.

Hazardous Area OperationsProviding reliable switching in volatile industrial atmospheres, leveraging the sealed relay design to meet stringent safety standards in chemical and fuel processing plants.

Industrial Load SequencingFacilitating the heavy-duty switching of 115V AC or 125V DC loads, providing a rugged electrical barrier between the sensitive 28V DC processor logic and high-energy field equipment.