REF543KM127AAAA
PublishedFeeder Protection Relay
ABBElectrical & LightingRelayIndustrial supply
ABB REF543KM127AAAA multifunctional feeder protection relay (REF543 series) for medium-voltage distribution systems. DIN-rail mountable; up to 1000 V; IEC 61850, IEC 60870-5-103, Profibus-DPV1, Modbus, DNP 3.0, SPA, LON.
Wholesale supplyREF543KM127AAAA
No public pricingPriced per agreement on volume and market. Send your quantities — Kaysan replies with availability and wholesale terms.
Product identity6 fields
Item nameFeeder Protection Relay
Item number / codeREF543KM127AAAA
BrandABB
Product lineIndustrial supply
CategoryElectrical & Lighting
Product typeRelay
Technical data14 rows
ModelREF543KM127AAAA Series
RangeUp to 1000 V Protection Functions
Voltage1000 V
Advanced MeasurementReal-time monitoring of electrical parameters and power quality
Communication ProtocolsIEC 61850, IEC 60870-5-103, Profibus-DPV1, Modbus, DNP 3.0, SPA, LON
Compact DesignDIN-rail mountable for space-constrained installations
Comprehensive ProtectionCovers a wide
Control FunctionsBreaker and disconnector control, synchronism check, interlock indication
DisplayLarge graphical LCD
Flexible CommunicationSupports multiple protocols for seamless integration with SCADA/DCS systems
FunctionFeeder protection, control, and monitoring
High ReliabilityEngineered for demanding industrial environments
Measurement ParametersPhase current, line/phase voltage, zero-sequence current/voltage, frequency, power factor, active/reactive power, energy
MountingDIN rail
Reference numbers1 public
ABBREF543KM127AAAA