Siemens 7SJ6225-5EB90-1FE0 Protection Relay

Feature & Principle

It is Siemens SIPROTEC 7SJ62 series multifunction feeder protection IED. It integrates phase overcurrent, sensitive earth fault, directional earth fault, thermal overload and circuit breaker control functions. It supports fault recording, event logging, measurement and bay interlock logic. This version is equipped with dual optical LC Ethernet port supporting IEC61850, realizes digital substation communication. Configured via DIGSI 4 software. Compact 1/3 19 inch panel flush mount, widely used in ring main unit and distribution switchgear.

Specifications

Model: 7SJ6225-5EB90-1FE0 Brand: Siemens Series: SIPROTEC 7SJ62 HMI: Backlit 4×20 text display, 7 programmable LED Binary I/O: 11BI / 6BO + watchdog contact CT rating: 5A Aux supply: DC 110–250V, AC 115–230V Communication: Dual optical 100M Ethernet, IEC61850 Mounting: Flush panel mount, screw terminals Frequency: 50/60Hz Standard: IEC / ANSI Application: Medium voltage distribution feeder, RMU, industrial substation Certification: CE

Components & Diagnostics

Signal acquisition board, main CPU board, power supply module, optical communication module, local HMI, status LED. Common faults: optical link interruption, setting parameter loss, binary input abnormal, relay contact burnout, power module failure.

Product Brief7SJ6225-5EB90-1FE0 feeder protection relay, Siemens SIPROTEC 7SJ62 IEC61850 digital protection spare widely used for substation switchgear overhaul and replacement.