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Siemens 3RT2327-1AC20 SIRIUS Contactor, S0 Size, 24V AC Coil

MPN3RT2327-1AC20

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Siemens SIRIUS contactor 3RT2327-1AC20, S0 size, 24 V AC coil, rated 10 A at 230 V, with screw terminals and auxiliary switch.

$252.82Ref. price · indicative, final on quote

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Siemens 3RT2327-1AC20 datasheet (PDF)

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

Specifications

3RT2327-1AC20 — Identification
Parameter	Value
Contactor frame size	S0

3RT2327-1AC20 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated operational current, AC-4 @ 400 V	7.5 kW
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	10 A
Rated value @ 24 V	10 A
Rated value @ 60 V	6 A
Rated value @ 110 V	1 A
Rated value @ 220 V	0.3 A

3RT2327-1AC20 — Control & Coil
Parameter	Value
Control supply voltage type	AC
Rated value @ 50 Hz	0.25
Rated value @ 50 Hz	24 V

3RT2327-1AC20 — Contacts & Poles
Parameter	Value
Main poles	4
Main NO contacts	4
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RT2327-1AC20 — Protection & Coordination
Parameter	Value
Short-circuit coordination type 1, fuse	gG: 63 A (690 V, 100 kA)
Short-circuit coordination type 2, fuse	gG: 20 A (690 V, 100 kA)
Aux. switch short-circuit protection, fuse	gG: 10 A (690 V, 1 kA)

3RT2327-1AC20 — Connection & Mounting
Parameter	Value
Main circuit connection	screw-type terminals
Aux. / control circuit connection	screw-type terminals
Conductor cross-section, solid	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, solid or stranded	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²)
Mounting method	screw and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mounting	Yes

3RT2327-1AC20 — Durability
Parameter	Value
Durability (operating cycles, typ.)	10 000 000
Durability with aux. switch block (cycles, typ.)	10 000 000

3RT2327-1AC20 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C
Installation altitude, max.	2 000 m

3RT2327-1AC20 — Mechanical
Parameter	Value
Width	60 mm
Height	85 mm
Depth	97 mm

3RT2327-1AC20 — Specifications
Parameter	Value
At AC	4 ... 16 ms

Product details

Current Ratings Across Operating Voltages

The 3RT2327-1AC20: Main contact current capacity depends on the switched voltage: 10 A at 24 V AC-1, 10 A at 230 V AC-1, and 3 A at 400 V AC-1. Minimum switching current is 16 mA.

Mounting and Terminal Wiring

Mounting position permits +/-180° rotation on vertical surfaces and +/-22.5° forward/backward tilt. Terminals accept solid conductors: 2x (0.5–1.5 mm²) and 2x (0.75–2.5 mm²). Stranded wire up to 10 mm². Clearance: forwards 10 mm, sideways 6 mm, upward 10 mm, downward 10 mm.