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Siemens 3RT2026-2AL20 SIRIUS Power Contactor, S0, spring ter

MPN3RT2026-2AL20

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Siemens SIRIUS power contactor, 3RT2026-2AL20, Size S0, spring-type terminals, width 45 mm, depth 97 mm, auxiliary switch included.

$123.20 – $219.20Ref. price · indicative, final on quote

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Siemens 3RT2026-2AL20 datasheet (PDF)

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

Specifications

3RT2026-2AL20 — Identification
Parameter	Value
Contactor frame size	S0

3RT2026-2AL20 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated operational current, AC-4 @ 400 V	15.5 A
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	3 hp
Rated value @ 24 V	10 A
Rated value @ 60 V	2 A
Rated value @ 110 V	1 A
Rated value @ 220 V	0.3 A

3RT2026-2AL20 — Control & Coil
Parameter	Value
Control supply voltage type	AC
Rated value @ 50 Hz	0.25
Rated value @ 50 Hz	230 V

3RT2026-2AL20 — Contacts & Poles
Parameter	Value
Main poles	3
Main NO contacts	3
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RT2026-2AL20 — Protection & Coordination
Parameter	Value
Short-circuit coordination type 1, fuse	gG: 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, fuse	gG: 35A (690V, 100kA), aM: 20A (690V, 100kA), BS88: 35A (415V, 80kA)
Aux. switch short-circuit protection, fuse	gG: 10 A (500 V, 1 kA)

3RT2026-2AL20 — Connection & Mounting
Parameter	Value
Main circuit connection	spring-loaded terminals
Aux. / control circuit connection	spring-loaded terminals
Conductor cross-section, solid	1 ... 10 mm²
Conductor cross-section, solid or stranded	2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²)
Mounting method	screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mounting	Yes

3RT2026-2AL20 — Durability
Parameter	Value
Durability (operating cycles, typ.)	10 000 000
Durability with aux. switch block (cycles, typ.)	10 000 000

3RT2026-2AL20 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C
Installation altitude, max.	2 000 m

3RT2026-2AL20 — Mechanical
Parameter	Value
Width	45 mm
Height	102 mm
Depth	97 mm

3RT2026-2AL20 — Specifications
Parameter	Value
At AC	4 ... 16 ms

Product details

For the panel builder: what fits

The 3RT2026-2AL20 is a SIRIUS S0 power contactor with spring-type terminals — the kind that speeds wiring on a busy DIN rail. 45 mm wide, 97 mm deep, 102 mm tall.

Mounting & wiring checklist

Snap onto 35 mm rail — no tools needed. Allow 10 mm clearance above, below, and forward; 6 mm at the sides. Strip conductors to appropriate length for spring terminals. For double-wire connections (2x 0.5…2.5 mm²), ensure same size and type. Use the auxiliary switch integrated on the contactor for status feedback.