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Siemens 3RT2026-2AB00-1AA0 — Contactors

Siemens 3RT2026-2AB00-1AA0 SIRIUS Power Contactor, Size S0

MPN3RT2026-2AB00-1AA0
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Siemens SIRIUS 3RT2026-2AB00-1AA0 power contactor, Size S0, 24 VDC coil, spring-type terminals, 10 A at 24 V rated value, 21 A at 480 V, screw and snap-on mounting onto 35 mm DIN rail.

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

Specifications

3RT2026-2AB00-1AA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT2026-2AB00-1AA0 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V15.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V3 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2026-2AB00-1AA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2026-2AB00-1AA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2026-2AB00-1AA0 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 100 A (690 V, 100 kA), aM: 50 A (690 V, 100 kA), BS88: 100 A (415 V, 80 kA)
Short-circuit coordination type 2, fusegG: 35A (690V, 100kA), aM: 20A (690V, 100kA), BS88: 35A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2026-2AB00-1AA0 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2026-2AB00-1AA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2026-2AB00-1AA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2026-2AB00-1AA0 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2026-2AB00-1AA0 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

It carries a 10 A rated current at 24 V and 21 A at 480 V, with a mechanical life of 10 million cycles typical. Spring-cage terminals accept solid or stranded wire from 1 to 10 mm² for the main circuit, and 2x (0.5 to 2.5 mm²) for the auxiliary switch block.

Switching duty and thermal limits

Rated for AC-1 resistive loads at 1000 cycles per hour maximum, AC-3 motor switching at 750 cycles/h, and AC-4 inching/plugging at 250 cycles/h. The AC-3e rating also sits at 750 cycles/h. Arcing time is 10 ms at AC, with a range of 4 to 16 ms. The 50 Hz holding current is 0.25 A. These numbers matter for coordination with upstream protection — the arcing duration is short enough that a standard motor-protective circuit breaker with a 10 ms response will clear before contact damage.

Frequently asked questions

What are the key ratings for 3RT2026-2AB00-1AA0?

The contactor is rated 10 A at 24 V rated value and 21 A at 480 V. It has a Size S0 frame, spring-type terminals, a 24 VDC coil, and a mechanical life of 10 million cycles typical. AC-3 motor switching is rated at 750 cycles per hour maximum.

What wire sizes does the spring terminal accept?

Main circuit terminals accept solid or stranded wire from 1 to 10 mm². The auxiliary switch terminals accept 2x (0.5 to 2.5 mm²) solid or stranded.

Where can I buy 3RT2026-2AB00-1AA0?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm commitment.

MPN
3RT2026-2AB00-1AA0