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Siemens 3RB1257-0KG20 — Overload Relays

Siemens 3RB1257-0KG20 Overload Relay, 125-500 A, Discontinue

MPN3RB1257-0KG20

Siemens 3RB1257-0KG20 overload relay, 125-500 A, full motor protection, ground fault detection, AC 110-120 V, 50/60 Hz, discontinued.

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

Product details

Siemens 3RB1257-0KG20 overload relay, 125-500 A, full motor protection, ground fault detection, AC 110-120 V, 50/60 Hz, discontinued.

MPN
3RB1257-0KG20