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Siemens 3RT2026-1AC20-0UA0 — Contactors

Siemens 3RT2026-1AC20-0UA0 SIRIUS Power Contactor, Size S0

MPN3RT2026-1AC20-0UA0

Siemens SIRIUS 3RT2026-1AC20-0UA0 power contactor, Size S0, 45 mm width, screw-type terminals, auxiliary switch, screw and snap-on mounting onto 35 mm DIN rail.

Source DocumentedChannel stated on listing & quote
Condition PhotosReal unit photos / video on request
WhatsApp AnswersFast human replies for machine-down parts
Worldwide DispatchDHL/FedEx — transit quoted per order
Independent China distributor & sourcing agent· Listing updated Sep 2026

Specifications

3RT2026-1AC20-0UA0 — Identification
ParameterValue
Contactor frame sizeS0
3RT2026-1AC20-0UA0 — 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
3RT2026-1AC20-0UA0 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2026-1AC20-0UA0 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2026-1AC20-0UA0 — 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)
3RT2026-1AC20-0UA0 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2026-1AC20-0UA0 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2026-1AC20-0UA0 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2026-1AC20-0UA0 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT2026-1AC20-0UA0 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

It occupies a 45 mm wide footprint in the panel, with dimensions of 85 mm height and 97 mm depth — that depth is the dimension to watch when laying out the gland plate or door clearance.

Wire range accepts solid or stranded conductors from 1 to 10 mm², with dual-wire capability for 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²). The main contact arrangement is 16 to 8 — a 4-pole configuration with normally open and normally closed pairs.

Switching Duty and Thermal Limits

Rated for AC-1 resistive loads at up to 1000 operations per hour, AC-2 and AC-3 motor switching at 750 ops/h, and AC-4 plugging/reversing at 250 ops/h. Arcing time sits at 10 ms. The magnet coil uses screw-type terminals; auxiliary switching current is rated at 10 A at 24 V, 2 A at 48 V and 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V, and 3 A at 400 V.

Frequently asked questions

What are the key dimensions for 3RT2026-1AC20-0UA0?

Width is 45 mm, height is 85 mm, and depth is 97 mm. Clearance requires 10 mm upwards, forwards, and downwards, plus 6 mm at the side.

What wire sizes does 3RT2026-1AC20-0UA0 accept?

Solid or stranded conductors from 1 to 10 mm². Dual-wire capability for 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²).

MPN
3RT2026-1AC20-0UA0