Skip to main content
Siemens 3RT6018-1BM41 — Contactors

Siemens 3RT6018-1BM41 SIRIUS Contactor, 7.5 kW at 230 V

MPN3RT6018-1BM41

Siemens SIRIUS power contactor, 3RT6018-1BM41, Size S00, screw-type terminals, 7.5 kW at 230 V (60 °C), 13 kW at 400 V, 22 kW at 690 V, snap-on DIN rail mounting.

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

3RT6018-1BM41 — Identification
ParameterValue
Contactor frame sizeS00
3RT6018-1BM41 — 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
3RT6018-1BM41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT6018-1BM41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT6018-1BM41 — 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
3RT6018-1BM41 — 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
3RT6018-1BM41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT6018-1BM41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT6018-1BM41 — Mechanical
ParameterValue
Width45 mm
Height57.5 mm
Depth73 mm

Product details

Rated insulation voltage is 690 V, and the contactor carries motor ratings of 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V — all at a 60 °C ambient, which is the derated figure you need for a warm panel. That 22 kW at 690 V tells you it handles higher-voltage motors without stepping up a frame size.

Dimensions are 45 mm wide, 57.5 mm high, and 73 mm deep — the S00 footprint is the smallest SIRIUS contactor frame, saving DIN-rail space in dense panels.

Maximum switching frequency at AC-3 duty is 750 cycles per hour (AC-3e same), and at DC it's 10,000 cycles per hour — that 10k figure is for DC control circuits, not main contacts, so keep that distinction when sizing for high-cycling applications. Coil draws 6 A at 24 V rated value, 1 A at 110 V, 0.3 A at 220 V, 10 A at 230 V, 3 A at 400 V, and 1 A at 690 V. The 10 A at 230 V is the inrush — the holding current is lower, but your control transformer needs to handle that peak.

Frequently asked questions

What are the key motor power ratings for this contactor?

At 60 °C ambient, it's rated for 7.5 kW at 230 V, 13 kW at 400 V, and 22 kW at 690 V. These are the derated figures you use for panel design — the contactor handles those motor loads without exceeding thermal limits.

What is the physical size and mounting of the 3RT6018-1BM41?

It's a Size S00 frame measuring 45 mm wide, 57.5 mm high, and 73 mm deep. It mounts on 35 mm DIN rail per EN 50022 with screw and snap-on fastening, and side-by-side mounting is allowed.

What compliance documentation is available for this part?

The part carries a substance prohibitance date of 05/01/2012, indicating RoHS compliance. For full certification documents (UL, CSA, CE, IEC), request them with your RFQ — they are manufacturer-issued and accompany the shipment.

MPN
3RT6018-1BM41