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Siemens 3RT6018-1AN21 — Contactors

Siemens 3RT6018-1AN21 SIRIUS Power Contactor, Size S00, 7.5

MPN3RT6018-1AN21

Siemens SIRIUS, power contactor, Size S00, 3RT6018-1AN21, 45 mm width, screw-type terminals, rated 7.5 kW at 230 V and 13 kW at 400 V.

$380.64Ref. price · indicative, final on quote
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

3RT6018-1AN21 — Identification
ParameterValue
Contactor frame sizeS00
3RT6018-1AN21 — 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
3RT6018-1AN21 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz220 V
3RT6018-1AN21 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6018-1AN21 — 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
3RT6018-1AN21 — 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
3RT6018-1AN21 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6018-1AN21 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6018-1AN21 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm
3RT6018-1AN21 — Specifications
ParameterValue
At AC10 000 1/h

Product details

It carries screw-type terminals for the main current circuit and mounts via screw or snap-on onto 35 mm DIN rail per DIN EN 50022, fitting a standard panel footprint at 45 mm wide, 57.5 mm high, and 73 mm deep.

The key selection figures are the motor ratings at 60 °C: 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V. These are the continuous switching capacities for a three-phase induction motor in AC-3 duty — the most common load type on a production line. The 400 V rating (13 kW) is the one that typically governs fit for a 400 V three-phase supply in European panels.

Integration notes

The contactor accepts 2× (0.5 to 1.5 mm²), 2× (0.75 to 2.5 mm²), or 2× 4 mm² solid or stranded wire. Minimum conductor size at 40 °C is 4 mm²; at 60 °C it drops to 2.5 mm².

Frequently asked questions

Where can I buy 3RT6018-1AN21 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time.

What compliance documentation does this brand provide for 3RT6018-1AN21?

The part carries a substance prohibition date of 05/01/2012, indicating RoHS compliance. The insulation voltage is rated 690 V, and the degree of pollution is 3 per IEC standards.

MPN
3RT6018-1AN21