The 3RB1246-1EM01: The 25-100 A range covers a wide band of motor sizes — from small pumps up to larger conveyors — but the thermal class 5-30 adjustment lets you tune the trip curve to the motor's starting characteristics. Class 10 is typical for standard induction motors; Class 20 or 30 for high-inertia loads like fans or crushers. The AC 220-240 V control circuit is common in European panel builds, but verify your control voltage matches before wiring.
Siemens 3RB1246-1EM01 Overload Relay, 25-100 A, Discontinued
MPN3RB1246-1EM01
Siemens 3RB1246-1EM01, overload relay, 25-100 A, Class 5-30, AC 220-240 V 50/60 Hz, screw terminals, discontinued.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
What replaces this overload relay?
No official successor order code is listed in the record. A parametric cross-reference against the 25-100 A range, Class 5-30, and S2/S3 mounting footprint is needed to find a suitable replacement.
What are the key ratings for this relay?
It is rated 25-100 A, thermal class 5-30, control voltage AC 220-240 V 50/60 Hz, with screw terminals on the auxiliary circuit and current transformer in the main circuit.
MPN
3RB1246-1EM01