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Siemens 3RT2026-1AP04 — Contactors

Siemens 3RT2026-1AP04 SIRIUS Contactor, Size S0, 21 A at 480

MPN3RT2026-1AP04
Active

Siemens SIRIUS power contactor, Size S0, 3RT2026-1AP04, 21 A at 480 V AC-3, screw-type coil terminals, 24 VDC coil, screw and snap-on 35 mm DIN rail mount.

$45.72Ref. price · indicative, final on quote
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

3RT2026-1AP04 — Identification
ParameterValue
Contactor frame sizeS0
3RT2026-1AP04 — 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 V6 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2026-1AP04 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz230 V
3RT2026-1AP04 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2026-1AP04 — 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)
3RT2026-1AP04 — 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
3RT2026-1AP04 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2026-1AP04 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2026-1AP04 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth141 mm
3RT2026-1AP04 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

SIRIUS Size S0 power contactor — 21 A AC-3 at 480 V

The Siemens SIRIUS 3RT2026-1AP04 is a Size S0 power contactor rated 21 A in AC-3 duty at 480 V, making it a fit for switching three-phase motor loads up to that current in a 480 V distribution. The coil pulls 6 A at 24 VDC nominal.

The 45 mm width and 85 mm height fit standard S0 footprint; depth is 141 mm.

Listed as current-production. No auxiliary switch included — order separately if needed.

Rated for 1 000 operating cycles per hour at AC-1 (resistive load), 750/h at AC-2 and AC-3 (motor starting/running), and 250/h at AC-4 (plugging/inching). Mechanical life typical 10 000 000 operations. Arcing time 10…10 ms at AC.

MPN
3RT2026-1AP04