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Siemens 7SR5121-2AA26-1AA0 — General Purpose Relays

Siemens 7SR5121-2AA26-1AA0

MPN7SR5121-2AA26-1AA0

Directional time-overcurrent protection 7SR51, 5 curr. trans., 4 volt. trans., 17 BI, 10 BO, Standard interface: 1 x USB (front),RS 485 (rear) + 2 x optical LC ports, S12 enclosure, including conformal coating

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

7SR5121-2AA26-1AA0 — Mechanical
ParameterValue
Width308 mm
Height177 mm
Depth217.5 mm
MPN
7SR5121-2AA26-1AA0