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Siemens 3RB1246-1PG00 — Overload Relays

Siemens 3RB1246-1PG00 Overload Relay, 1.25-6.3A, S00/S0, Cla

MPN3RB1246-1PG00

Siemens 3RB1246-1PG00 overload relay, 1.25-6.3 A, size S00/S0, Class 5-30, AC 110-120 V, screw terminals, manual-automatic-remote reset.

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

Product details

The 3RB1246-1PG00: The control circuit runs on AC 110-120 V, 50/60 Hz, with screw terminals for the auxiliary connections. Reset options cover manual, automatic, and remote, so it fits panels where the relay sits inside a guarded enclosure and needs a remote reset from the HMI or PLC. The main circuit uses a current transformer for sensing, and the output is monostable — drops out on a fault, stays dropped until reset.

Because it is a current-production part, it sources through standard Siemens supply.

Frequently asked questions

What is the current range and trip class for this overload relay?

It covers 1.25 to 6.3 A motor FLA with a selectable trip class from 5 to 30, letting you match the thermal curve to the motor start profile.

What control voltage does this relay use?

The control circuit is rated for AC 110-120 V, 50/60 Hz, with screw terminals for auxiliary wiring.

What reset options are available on the 3RB1246-1PG00?

It supports manual, automatic, and remote reset, making it suitable for panels where the relay is inside a guarded enclosure and needs remote reset from a control system.

Does this relay include ground fault detection?

Yes. It includes ground fault signaling, providing early warning of insulation degradation on the motor circuit before a phase-to-ground fault develops.

MPN
3RB1246-1PG00