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Siemens 3RT2326-2AC20 — Contactors

Siemens 3RT2326-2AC20 SIRIUS Contactor, S0, 24 VAC Coil, 18-

MPN3RT2326-2AC20
Active

Siemens SIRIUS contactor, size S0, 24 VAC 50/60 Hz coil, main contacts 18-8 A, spring-type coil terminals, screw and snap-on DIN rail mounting.

Siemens 3RT2326-2AC20 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

3RT2326-2AC20 — Identification
ParameterValue
Contactor frame sizeS0
3RT2326-2AC20 — 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
3RT2326-2AC20 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2326-2AC20 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2326-2AC20 — 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)
3RT2326-2AC20 — 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
3RT2326-2AC20 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2326-2AC20 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2326-2AC20 — Mechanical
ParameterValue
Width60 mm
Height102 mm
Depth97 mm
3RT2326-2AC20 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

The Siemens 3RT2326-2AC20 is a SIRIUS contactor in the S0 frame size, with a 24 VAC 50/60 Hz coil drawing 0.25 VA at 50 Hz and 0.28 VA at 60 Hz. Main contacts are rated 18 A at 400 V AC-3 and 8 A at 400 V AC-1 — the AC-3 figure governs motor switching up to that current, while AC-1 covers resistive loads. The coil terminates via spring-type terminals; main and auxiliary power connections accept solid 2x (0.5... 2.5 mm²) or stranded 1... 10 mm² wire.

The S0 footprint is 60 mm wide, 102 mm tall, and 97 mm deep — plan for that depth when routing behind the gland plate.

Switching performance and auxiliary contacts

Arcing time is 10 ms; the AC switching time (closing + opening) spans 4 to 16 ms. The contactor comes with an auxiliary switch built in, and up to 2 additional auxiliary contact blocks can be attached.

Frequently asked questions

What are the main contact ratings for the 3RT2326-2AC20?

Main contacts are rated 18 A at 400 V AC-3 (motor duty) and 8 A at 400 V AC-1 (resistive duty). The AC-3 figure is the one that governs motor switching.

Where can I buy the 3RT2326-2AC20 and get current pricing?

This contactor is sourced and quoted to order against an RFQ through independent distribution channels. Availability and current pricing are confirmed at the time of quote — submit an RFQ for a firm commercial response.

What is the depth of the 3RT2326-2AC20?

The depth is 97 mm, which is the dimension from the DIN rail mounting surface to the front of the contactor body.

What wire sizes does the 3RT2326-2AC20 accept?

Solid wire: 2x (0.5... 2.5 mm²). Stranded wire: 1... 10 mm². Coil terminals are spring-type.

Will the 3RT2326-2AC20 drop into a panel designed for the 3RT2015-2AP02?

Not without mechanical changes. The 3RT2326-2AC20 is a size S0 frame (60 mm wide), while the 3RT2015-2AP02 is a smaller S00 frame — the DIN rail footprint and mounting hole pattern differ. Verify panel cutout and wiring before substituting.

MPN
3RT2326-2AC20