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Siemens 3RT2018-2AF01 SIRIUS Power Contactor, S00

MPN3RT2018-2AF01

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Siemens SIRIUS, power contactor, size S00, 3RT2018-2AF01, spring-type coil terminals, 45 mm wide, switching up to 750 operations per hour at AC-3 motor duty.

$147.86Ref. price · indicative, final on quote

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Siemens 3RT2018-2AF01 datasheet (PDF)

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

Specifications

3RT2018-2AF01 — Identification
Parameter	Value
Contactor frame size	S00

3RT2018-2AF01 — Ratings & Performance
Parameter	Value
Rated operational current, AC-12, max.	10 A
Rated operational current, AC-4 @ 400 V	11.5 A
Rated value @ 400 V	3 A
Rated value @ 500 V	2 A
Rated value @ 690 V	1 A
Rated value @ 230 V	2 hp
Rated value @ 24 V	10 A
Rated value @ 60 V	2 A
Rated value @ 110 V	1 A
Rated value @ 220 V	0.3 A

3RT2018-2AF01 — Control & Coil
Parameter	Value
Control supply voltage type	AC
Rated value @ 50 Hz	0.25
Rated value @ 50 Hz	110 V

3RT2018-2AF01 — Contacts & Poles
Parameter	Value
Main poles	3
Main NO contacts	3
Auxiliary contact reliability	1 faulty switching per 100 million (17 V, 1 mA)

3RT2018-2AF01 — Protection & Coordination
Parameter	Value
Short-circuit coordination type 1, fuse	gG: 50A (690V,100kA), aM: 25A (690V,100kA), BS88: 50A (415V,80kA)
Short-circuit coordination type 2, fuse	gG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fuse	gG: 10 A (500 V, 1 kA)

3RT2018-2AF01 — Connection & Mounting
Parameter	Value
Main circuit connection	spring-loaded terminals
Aux. / control circuit connection	spring-loaded terminals
Conductor cross-section, solid	0.5 ... 4 mm²
Conductor cross-section, solid or stranded	2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule	2x (0.5 ... 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

3RT2018-2AF01 — Durability
Parameter	Value
Durability (operating cycles, typ.)	30 000 000
Durability with aux. switch block (cycles, typ.)	10 000 000

3RT2018-2AF01 — Environmental
Parameter	Value
Operating temperature range	-25 ... +60 °C
Storage temperature range	-55 ... +80 °C
Installation altitude, max.	2 000 m

3RT2018-2AF01 — Mechanical
Parameter	Value
Width	45 mm
Height	70 mm
Depth	73 mm

3RT2018-2AF01 — Specifications
Parameter	Value
At AC	4 ... 15 ms

Product details

Wire range accepts solid and stranded conductors from 0.5 to 4 mm², and double-wire capability up to 2x (0.5…4 mm²) per terminal. Rated switching frequency for AC-3 motor duty is 750 operations per hour; AC-4 plugging/inching duty is limited to 250 operations per hour.

Overall dimensions: width 45 mm, height 70 mm, depth 73 mm. This flexibility eases integration into crowded panel layouts where orientation is constrained.

Production lifecycle status is current, confirming active manufacture with no end-of-life notification. The part is specified directly into BOMs without obsolescence risk for the near term.