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Siemens 3RT2018-2AP61 — Contactors

Siemens 3RT2018-2AP61 SIRIUS Power Contactor, Size S00, 24 V

MPN3RT2018-2AP61
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Siemens SIRIUS power contactor, 3RT2018-2AP61, size S00, 24 VDC coil, spring-type terminals, 10 A at 24 V, 2 hp at 230 V.

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

3RT2018-2AP61 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-2AP61 — 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
3RT2018-2AP61 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.24
Rated value @ 50 Hz220 V
3RT2018-2AP61 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-2AP61 — 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)
3RT2018-2AP61 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2018-2AP61 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-2AP61 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-2AP61 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm
3RT2018-2AP61 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It carries a 24 VDC coil with spring-type terminals and is rated for 10 A at 24 V and 2 hp at 230 V, making it a fit for small motor starters and general switching duties.

For resistive loads (AC-1), it can cycle up to 1000 times per hour, and for plugging or inching (AC-4), the rate drops to 250 cycles per hour because the contact wear is higher.

The size S00 footprint is 45 mm wide, 70 mm high, and 73 mm deep — a common compact format that fits alongside other S00 contactors and overload relays in a standard panel layout. The spring-type terminals on the coil accept solid or stranded wire from 0.5 to 4 mm², and the main contacts also accept 2x (0.5 to 4 mm²) solid or stranded, so no special ferrules are required for standard panel wiring.

Frequently asked questions

What are the key ratings for this contactor?

The contactor is rated for 10 A at 24 V, 2 hp at 230 V, and 3 A at 400 V. It handles AC-3 duty at 750 cycles per hour and has a mechanical life of 30 million operations typical.

What wire sizes does the spring-type terminal accept?

The coil and main terminals accept solid or stranded wire from 0.5 to 4 mm². The main contacts also accept 2x (0.5 to 4 mm²) solid or stranded.

What are the mounting dimensions and clearances?

The contactor is 45 mm wide, 70 mm high, and 73 mm deep. Minimum clearances are 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side.

MPN
3RT2018-2AP61