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Siemens 3RT2018-1AU62 — Contactors

Siemens 3RT2018-1AU62 SIRIUS Contactor, 10 A at 24 V

MPN3RT2018-1AU62
Active

Siemens SIRIUS 3RT2018-1AU62 power contactor, size S00, 10 A at 24 V rated value, screw-type terminals, 45 mm width, snap-on 35 mm DIN rail mounting.

StockContact for availability
Lead time3-5 Days wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RT2018-1AU62 — Identification
ParameterValue
Contactor frame sizeS00

Ratings & Performance

3RT2018-1AU62 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V11.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V2 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A

Control & Coil

3RT2018-1AU62 — Control & Coil
ParameterValue
Control supply voltage typeAC

Contacts & Poles

3RT2018-1AU62 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Protection & Coordination

3RT2018-1AU62 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 50A (690V,100kA), aM: 25A (690V,100kA), BS88: 50A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)

Connection & Mounting

3RT2018-1AU62 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 4 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

Durability

3RT2018-1AU62 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000

Environmental

3RT2018-1AU62 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RT2018-1AU62 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Specifications

3RT2018-1AU62 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Switching frequency and duty cycle limits

The 3RT2018-1AU62: These limits govern how fast the contactor can cycle without overheating the coil or arc chamber. The arcing time spans 10 to 15 ms at AC, and the opening time is 4 to 15 ms — both matter for coordination with upstream overcurrent devices in a motor branch circuit.

Panel fit and mounting clearances

The 45 x 58 x 73 mm (W x H x D) footprint fits standard S00 contactor spacing.

Current production — active lifecycle

Sourced through authorized distribution channels; availability and pricing confirmed against the BOM quantity at RFQ. The S00 frame is a common spare across many Siemens motor starter assemblies, so it moves as a standard stock item.

Frequently asked questions

What is the switching frequency limit for this contactor?

These limits protect the coil and arc chamber from thermal buildup.

MPN
3RT2018-1AU62