IS200ERRRH1A GE Redundant Relay Interface Card

GE IS200ERRRH1A Concise Technical Specification
Basic Information
Brand: GE General Electric
Model: IS200ERRRH1A
Product Name: Redundant Relay Interface Card for Excitation System
Origin: United States
HS Code: 8537101190
Dimension: 220mm × 100mm × 50mm
Net Weight: 2.0kg

Electrical & Environmental Parameters
Power supply: 24VDC wide-range input from rack backplane, typical power consumption 50W
Relay circuit rating: 24VDC control signal, maximum switch current 120A
Signal transmission: Proprietary GE IONet internal bus communication
Operating temperature: -20℃ ~ +70℃
Storage temperature: -40℃ ~ +85℃
Humidity: 5%–95% non-condensing
Protection grade: IP20 for cabinet rack internal installation
Certifications: CE, UL 508A industrial control compliance, IEEE power system standard
Core Product Characteristics
Dual redundant relay channel design ensures uninterrupted safety control if one relay circuit malfunctions; built-in continuous hardware self-diagnosis to detect wire short-circuit, open-circuit and relay aging faults with front panel LED alarms; conformal coated printed circuit board resists dust, moisture and corrosive flue gas in power plant environments; standard single-slot rack plug-in structure supports hot-swap maintenance without full system shutdown; strong surge and ESD suppression circuit to eliminate electromagnetic interference from high-voltage excitation cabinets; fully compatible with all EX2100 excitation controller and Mark VI series turbine control modules; fail-safe output logic cuts excitation output automatically when communication is lost.
Wiring Instruction
Insert the card into dedicated slot of GE standard control rack to receive 24VDC power and IONet bus communication via backplane connectors. Connect critical generator trip and excitation control signal cables to front pluggable terminal blocks with shielded twisted wires. Single-point ground all cable shielding layers on cabinet earth bar, separate high-power excitation wiring and weak signal wiring to reduce cross-talk and signal distortion.