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Siemens 3RT6018-1BW41 — Contactors

Siemens 3RT6018-1BW41 SIRIUS Power Contactor S00, 48 V coil,

MPN3RT6018-1BW41

Siemens SIRIUS, power contactor, size S00, 3RT6018-1BW41, 48 V coil, screw terminals, 13 kW at 400 V 60 °C, DIN rail mount.

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

3RT6018-1BW41 — Identification
ParameterValue
Contactor frame sizeS00
3RT6018-1BW41 — 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
3RT6018-1BW41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT6018-1BW41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6018-1BW41 — 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
3RT6018-1BW41 — 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
3RT6018-1BW41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6018-1BW41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6018-1BW41 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm

Product details

The Siemens 3RT6018-1BW41 is a SIRIUS power contactor in size S00, rated for motor switching up to 13 kW at 400 V at 60 °C and 22 kW at 690 V at 60 °C, with a 48 V coil. The coil draws 6 A at 24 V rated value and 0.3 A at 220 V rated value, so control transformer sizing needs to account for inrush.

Side-by-side mounting is permitted, so multiple contactors can pack closely on the rail. Accepts 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid/stranded, plus 2x AWG 12. Minimum permissible cross-section at 40 °C is 4 mm², derating to 2.5 mm² at 60 °C.

Frequently asked questions

What is the depth and width of this contactor?

Depth is 73 mm, width is 45 mm, height is 57.5 mm. The size S00 footprint fits standard DIN-rail enclosures.

What compliance documentation does this part carry?

RoHS compliance is confirmed with a substance prohibitance date of May 1, 2012. The insulation voltage rating is 690 V, and the degree of pollution is 3.

MPN
3RT6018-1BW41