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Siemens 3RT6018-1AF01 — Contactors

Siemens 3RT6018-1AF01 SIRIUS Power Contactor, Size S00, 24 V

MPN3RT6018-1AF01

Siemens SIRIUS power contactor, Size S00, 3RT6018-1AF01, 24 VDC coil, 45 mm width, screw-type terminals, AC-3 rated 690 V max.

Siemens 3RT6018-1AF01 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

3RT6018-1AF01 — Identification
ParameterValue
Contactor frame sizeS00
3RT6018-1AF01 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V10 A
Rated value @ 24 V6 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT6018-1AF01 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz110 V
3RT6018-1AF01 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6018-1AF01 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 35 A
Short-circuit coordination type 2, fusegL/gG LV HRC 3NA, DIAZED 5SB, NEOZED 5SE: 20 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT6018-1AF01 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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 50022
Side-by-side mountingYes
3RT6018-1AF01 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6018-1AF01 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6018-1AF01 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RT6018-1AF01 — Specifications
ParameterValue
At AC10 000 1/h

Product details

It carries a 24 VDC coil rated at 6 A, and its AC-3 switching capability goes up to 690 V maximum, making it suitable for three-phase motor circuits up to that voltage.

At 400 V and 60 °C, the contactor is rated for 13 kW motor power; at 690 V and 60 °C, that rises to 22 kW. These are the practical limits for continuous motor duty — size your load against these, not the raw current figures, because the thermal derating at elevated ambient temperature governs real-world performance. The AC-3 maximum switching frequency is 750 operations per hour, which covers most pump, fan, and conveyor cycles without exceeding the mechanical life of 30 million operations.

The 73 mm depth and 57.5 mm height keep the contactor compact for DIN-rail enclosures. Side-by-side mounting is permitted, so multiple contactors can pack tightly on the rail without derating for spacing.

Frequently asked questions

What is the closest functional second-source for 3RT6018-1AF01?

The 3RT6018-1AB02 is the closest peer — same Size S00 frame and similar AC-3 ratings, but with a different coil voltage. Verify coil compatibility before substituting; the 1AF01 uses a 24 VDC coil, while the 1AB02 uses a different coil variant.

Will 3RT6018-1AF01 drop into a panel specified around 3RT6018-1AB02?

Yes, both share the same Size S00 footprint, 45 mm width, and DIN-rail mounting, so the mechanical fit is identical. The only difference is the coil voltage — confirm your control circuit matches 24 VDC before swapping.

What compliance documentation does Siemens provide for 3RT6018-1AF01?

The part carries a substance prohibition date of 05/01/2012, indicating RoHS compliance. Standard Siemens documentation includes a CE declaration of conformity and UL/CSA recognition for the SIRIUS series; request the specific certificate at quote time.

Where can I buy 3RT6018-1AF01 and how is it quoted?

This contactor is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for firm pricing and lead time to your install date.

MPN
3RT6018-1AF01