ABB REF543KM129AAAB
The ABB REF543 is a feeder protection relay from the REF 54x series, designed for medium-voltage distribution networks. Below are the key technical parameters for the REF543KM129AAAB variant:
General Specifications:
Model: REF543 (KM129AAAB denotes specific hardware/software configuration)
Application: Feeder protection, motor protection, and transformer protection
Housing: Standard 19-inch rack or panel mounting (IP40/IP52)
Electrical Parameters:
Rated Voltage (Auxiliary Supply):
DC: 24–250 V
AC: 48–250 V
Current Inputs:
Rated Current (Iₙ): 1 A or 5 A (configurable)
Thermal Withstand: 4× Iₙ continuously, 100× Iₙ for 1s
Frequency: 50/60 Hz
Protection Functions:
Overcurrent Protection (50/51, 50N/51N, 50G/51G)
Directional Overcurrent (67, 67N)
Earth Fault Protection (50EF/51EF, 67N)
Thermal Overload Protection (49)
Motor Protection (46, 49, 66) (if applicable)
Autoreclosing (79) (optional)
Communication & I/O:
Communication Protocols:
IEC 61850, Modbus RTU/TCP, DNP3, IEC 60870-5-103
Binary Inputs: Up to 14 (programmable)
Binary Outputs: Up to 10 (relay contacts)
Ethernet Ports: 2× (for IEC 61850 & SCADA)
Environmental & Mechanical:
Operating Temperature: -25°C to +60°C
Ingress Protection: IP40 (standard), IP52 (optional)
Mounting: 19-inch rack or panel
Main Brand:
ABB Allen-Bradley Alstom Bently Emerson Foxboro
GE MOOG Schneider Woodward HIMA Honeywell
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DCS/PLC/TSI Manufacturers:
ABB, GE, Allen Bradley, Honeywell, Emerson, Bently Nevada, Prosoft, Siemens, Westinghouse, Triconex, Foxboro, ICS Triplex, Hima, Schneider, Yokogawa, Woodward, B&R, KEBA, etc.
Product Categories & Models
1. Distributed Control System (DCS)
- ABB:3AUA0000110429, SYSCON2 746924
- Invensys Foxboro:FBM214, FBM242, B0123HE
- Invensys Triconex:3625, 3700A, 3604E
- Woodward:5462-758B
- HIMA:F2-DO-16-02, F8650E
- Yokogawa:SAI143-S03 S1, F9342L-02
- Honeywell:51402497-200, 51403519-160, 51199194-100, CC-PDO801
- Emerson:KJ4001X1-NB1, 12P3368X012
2. Programmable Logic Controller (PLC)
- Rockwell/Allen Bradley:1734-IB8, 1734-OB8, 1769-L18ER-BB1B, 1756-IM16I
- ICS Triplex:T8461, T8850, T8403, T8431, T8831, T8310
- Schneider Modicon:140DDI85300
- GE Fanuc:IS210AEPSG2B, IS220UCSAH1A, IS215ACLEH1A, IS210AEAAH1B
- Siemens:6ES7331-1KF02-0AB0
- Prosoft:MVI46-DFNT
- Bachmann:MPC240
- Woodhead:9905-068 2301A
3. Turbine Supervisory Instrumentation (TSI)
- Bently Nevada:3500/22M, 138607-01, 3500/25, 3500/53, 3500/32M 149986-02
- EPRO:MMS6110, MMS6120, MMS6220, MMS6312, MMS6410, 6423, 6424
- ENTEK:EK C6622HS, XM124, 1440-SDM02-01RA
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