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Siemens 3RT2327-2AC20 — Contactors

Siemens 3RT2327-2AC20 SIRIUS Contactor, Size S0, AC Coil 24V

MPN3RT2327-2AC20
Active

Siemens SIRIUS, Contactor, size S0, AC coil 24 V 50/60 Hz, screw and snap-on mounting onto 35 mm DIN rail, 3RT2327-2AC20.

Siemens 3RT2327-2AC20 datasheet (PDF)
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

3RT2327-2AC20 — Identification
ParameterValue
Contactor frame sizeS0
3RT2327-2AC20 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V7.5 kW
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V10 A
Rated value @ 60 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2327-2AC20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2327-2AC20 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2327-2AC20 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 63 A (690 V, 100 kA)
Short-circuit coordination type 2, fusegG: 20 A (690 V, 100 kA)
Aux. switch short-circuit protection, fusegG: 10 A (690 V, 1 kA)
3RT2327-2AC20 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.5 ... 2.5 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2327-2AC20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2327-2AC20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2327-2AC20 — Mechanical
ParameterValue
Width60 mm
Height102 mm
Depth97 mm
3RT2327-2AC20 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

Ratings & Fit

The main contact set is 3-pole normally open. An auxiliary switch is included, configurable as 1 NO + 1 NC (the 18...8 notation means 18 terminals for the NO block, 8 for the NC). The auxiliary contacts carry 10 A at 24 V, 10 A at 230 V, and 3 A at 400 V — enough for pilot duty on PLC inputs or relay coils.

Wiring & Integration

Main circuit terminals accept solid conductors 2x (0.5...2.5 mm²) or stranded 1...10 mm². The magnet coil uses spring-type terminals for fast wiring without re-torquing. Dimensions are 60 mm wide, 102 mm high, 97 mm deep. Operating time is 4...16 ms AC; arcing time is 10...10 ms. The size S0 frame means it occupies the same footprint as other S0 accessories like auxiliary contact blocks and surge suppressors.

This part carries a current lifecycle stage from the manufacturer, meaning it remains in the active catalog for new designs and replacement orders. The SIRIUS series is widely stocked, so RFQ turnaround is typically fast.

Frequently asked questions

Where can I buy 3RT2327-2AC20 and how do I get a price?

This part is sourced to order against an RFQ through independent distribution. Submit a request for current pricing and availability — no minimums, lead time confirmed at quote.

What is the closest functional second-source to 3RT2327-2AC20?

The 3RT2326-1BK80 is a peer in the same S0 frame with a DC coil; the 3RT2327-2AC20 uses an AC coil at 24 V. If your control voltage is AC, the 3RT2327-2AC20 is the direct fit — the DC-coil sibling requires a different power supply circuit.

What are the key dimensions of 3RT2327-2AC20?

Width 60 mm, height 102 mm, depth 97 mm. Mounts on 35 mm DIN rail per DIN EN 60715.

What conductor sizes does 3RT2327-2AC20 accept?

Main terminals accept solid 2x (0.5...2.5 mm²) or stranded 1...10 mm². The coil uses spring-type terminals.

MPN
3RT2327-2AC20