Size S0 footprint means it mates with the SIRIUS 3RT2 contactor range of the same frame size, sharing the DIN-rail clip and bus-bar system. Screw terminals accept 0.2–2.5 mm² stranded or solid; the 0.1–0.4 A range covers fractional-horsepower motors — small pumps, fans, conveyor drives — where a standard thermal overload would be oversized. Class 10 tripping suits standard induction motor starts; no special derating needed for 50/60 Hz common supply.
Siemens 3RB1026-1RB0 Solid-State Overload Relay, 0.1-0.4A, S
MPN3RB1026-1RB0
Siemens SIRIUS 3RB1 series, solid-state overload relay, 0.1...0.4 A, Class 10, screw connection, size S0, manual-automatic reset, 3RB1026-1RB0.
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
Product details
Frequently asked questions
What is the current rating and trip class of 3RB1026-1RB0?
The relay is rated 0.1...0.4 A with a Class 10 trip characteristic, suitable for standard motor starting duty.
Where can I buy 3RB1026-1RB0 and how is it quoted?
This part is sourced to order through independent distribution channels. Submit an RFQ for current pricing and availability — stock and lead time are confirmed at quote time.
What contactor does 3RB1026-1RB0 mount onto?
It mounts onto a contactor of size S0, typically the Siemens SIRIUS 3RT2 series in the same frame size, using the screw connection method.
MPN
3RB1026-1RB0