★★★★★
“Quick turnaround on the quotation and the part shipped the same day we confirmed. Packaging was solid, everything arrived in perfect shape.”H. Tanaka · October 23, 2026
Photos of the actual unit are provided before shipment on request.
Differential Protection Relay 7UT6121-4EB90-1BA0 L0D
MLFB / Order No.: 7UT6121-4EB90-1BA0 L0DPrices are indicative USD list prices. Final pricing depends on quantity, destination and current exchange rate — confirmed in your quote within 24 hours. Availability is confirmed per request.
Product Description
DIGITAL DIFFERENTIAL PROTECTION RELAY, FOR TRANSFORMER, GENERATORS, MOTOR AND SHORT CABLE 4-LINE ALPHANUM.BACKLIT DISPLAY 7 PROGRAMMABLE LED, NAVIGATION KEYS, FUNCTION KEYS, CASE 1/3 X 19", 3BI, 4BO, 1 WATCHDOG CONTACT, 7I, IEE, CURRENT TRANSFORMER: 1A SUPPLY VOLTAGE: DC 60V TO 125V, TRIGGER LEVEL BINARY INPUT 19V FLUSH MOUNTING CASE, SCREW TERMINALS (DIRECT WIRING/RING LUGS) REGION WORLD, 50/60HZ, IEC/ANSI, LANGUAGE ENGLISH (LANGUAGE CHANGEABLE) SYSTEM PORT (ON REAR OF DEVICE) PORT B MODBUS, RS485 WITHOUT DIGSI 4/MODEM PORT BASIS MEASURED VALUES, FAULT RECORDING RESTRICTED EARTH FAULT LOW IMPEDANCE (87N) UMZ - 1-PHASE FOR RESTRICTED EARTH FAULT HIGH IMPEDANCE (87N W/O RESISTOR AND VARISTOR) SENSITIVE OVERCURR.-TIME PROT./ TANK PROTECTION (64) NEGATIVE SEQUENCE PROTECT. (46) BREAKER FAILURE PROTECT. (50BF) TRIP CIRCUIT SUPERVISION (74TC)
- ManufacturerSiemens
- Product NameDIGITAL DIFFERENTIAL PROTECTION RELAY
- Order Number7UT6121-4EB90-1BA0
- Product DescriptionPower Component for power-system and substation automation applications.
- Voltage60V
- Current1A
- Frequency60 Hz
- CategoryEnergy and Power Systems > Protection Relays and Grid Protection
- Product TypeTransformer
- Phases1
- CertificationsIEC
- MountingFlush Mount
- InterfaceMODBUS
- DisplayDISPLAY 7
- HS Code (8-digit, Preliminary)85285990
- OriginGermany
- Warranty12 months
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