Skip to main content
Siemens 3RT2018-2BM41 — Contactors

Siemens 3RT2018-2BM41 SIRIUS Power Contactor, S00, 220 V DC

MPN3RT2018-2BM41
Active

Siemens SIRIUS power contactor, 3RT2018-2BM41, size S00, 220 V DC coil, spring-type terminals, 45 mm width, 73 mm depth.

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

3RT2018-2BM41 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-2BM41 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V11.5 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V2 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2018-2BM41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2018-2BM41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-2BM41 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 50A (690V,100kA), aM: 25A (690V,100kA), BS88: 50A (415V,80kA)
Short-circuit coordination type 2, fusegG: 25A (690V,100kA), aM: 20A (690V,100kA), BS88: 25A (415V,80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2018-2BM41 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid0.5 ... 4 mm²
Conductor cross-section, solid or stranded2x (0,5 ... 4 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 2.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2018-2BM41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-2BM41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-2BM41 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

Its 220 V DC coil operates within a -25 to +60 °C ambient range, and the spring-type terminals accept solid or stranded conductors from 0.5 to 4 mm² (2x per clamp). The contactor mounts via screw or snap-on onto a 35 mm DIN rail per EN 60715, with +/-180° rotation and +/-22.5° tilt possible on vertical surfaces. The headline switching frequency varies by duty class: at AC-1 (resistive) it handles up to 1,000 operations per hour, at AC-2 and AC-3 (motor starting/running) 750 ops/h, and at AC-4 (plugging/inching) 250 ops/h. The AC-3e rating also caps at 750 ops/h. For DC-13 breaking at 24 V it's rated 10 A, dropping to 0.3 A at 220 V — so the coil voltage determines the inductive load it can interrupt cleanly.

Width 45 mm, depth 73 mm, height 70 mm. Clearances: 10 mm upward, forward, downward; 6 mm at sides. Main contacts 20...12, auxiliary switch included.

Frequently asked questions

What are the mounting and clearance dimensions?

Width 45 mm, depth 73 mm, height 70 mm. Clearances: 10 mm upward, forward, and downward; 6 mm at the sides. Mounts on 35 mm DIN rail per EN 60715, with screw or snap-on fastening.

What conductor sizes does the spring terminal accept?

Solid or stranded conductors from 0.5 to 4 mm², and 2x (0.5 to 4 mm²) per clamp.

MPN
3RT2018-2BM41