The ABB 1MRK001608-CAR02 (Revision Model: 1MRK001608-CA) is an industrial-grade, multi-functional Intelligent Electronic Device (IED) engineered within the elite ABB Relion product family.
Technical Specifications
Manufacturer: ABB
Part Number Designation: 1MRK001608-CAR02 (Core model reference: 1MRK001608-CA)
Product Ecosystem: Relion Protection and Control Family
Primary Scope Functions: Substation, Transformer, and Generator Core Protection Management
Auxiliary Power Supply Voltage: 24 V DC to 250 V DC / 48 V AC to 240 V AC (Wide operating tolerance window)
Current Input Conditioning Range: 1 A or 5 A software selectable CT inputs
Voltage Input Interfacing Line: 100 V AC to 240 V AC/DC nominal VT range
Physical Communication Links: Multi-node Ethernet, isolated RS-232, and RS-485 expansion bus ports
Integrated Substation Protocols: Native IEC 61850 (Edition 1 and 2), DNP3, Modbus RTU/TCP, and legacy IEC 60870-5-103 telemetry strings
Extended Temperature Performance Range: -25°C to +70°C (-13°F to 158°F) continuous parameter bounds
Industrial Application Scenarios
The ABB 1MRK001608-CAR02 terminal is mounted directly within the low-voltage control compartments of high-voltage breaker frameworks, generator sync bays, and central utility control panels.
It serves as the main protection supervisor for heavy industrial infrastructure, protecting utility substations from catastrophic line-to-line faults, balancing phase vectors on large grid step-up transformers, and monitoring massive synchronous generator windings. By tracking power waves at 50/60 Hz, the unit intercepts overcurrent spikes, reverse-power flows, and transient frequency sags. If an electrical anomaly exceeds programmed safety boundaries, the relay isolates the faulted grid block within milliseconds to prevent widespread blackouts.
