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Siemens 3RT2018-1BE41 — Contactors

Siemens 3RT2018-1BE41 SIRIUS Power Contactor, S00, 24 VDC Co

MPN3RT2018-1BE41
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Siemens SIRIUS power contactor, 3RT2018-1BE41, size S00, 24 V DC coil, screw terminals, 10 A at 24 V DC, 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

3RT2018-1BE41 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-1BE41 — 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
3RT2018-1BE41 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2018-1BE41 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-1BE41 — 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)
3RT2018-1BE41 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid0.5 ... 4 mm²
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 standard mounting rail according to DIN EN 60715
Side-by-side mountingYes
3RT2018-1BE41 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-1BE41 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-1BE41 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Product details

SIRIUS S00 power contactor with 24 V DC coil

The S00 frame keeps panel density high — typical for sub-distribution or machine-cabinet layouts where space is tight.

Switching performance and contact ratings

DC switching capacity is specified at several voltages: 10 A at 24 V, 2 A at 48 V, 2 A at 60 V, 1 A at 110 V, 0.9 A at 125 V, 0.3 A at 220 V. At 400 V AC the contactor is rated 3 A, and at 230 V it carries a 2 hp motor load. Mechanical endurance is typical for the class at 30 million operating cycles. Switching frequency limits: 1000 cycles/h at AC-1 (resistive), 750 cycles/h at AC-3 (motor starting), and 250 cycles/h at AC-4 (plugging/inching). The AC-3e rating matches the AC-3 figure at 750 cycles/h. These matter for high-duty applications like conveyor indexing or frequent start-stop cycles.

Wiring and auxiliary contacts

Screw terminals accept solid or stranded wire: 0.5 to 4 mm² single, or 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm². Main contact configuration: 20... 12.

Frequently asked questions

What is the mounting and clearance requirement?

It snaps onto a 35 mm DIN rail per DIN EN 60715. Clearances needed: 10 mm upwards, 10 mm forwards, 10 mm downwards, and 6 mm at the side. Mounting position allows ±180° rotation and ±22.5° tilt.

What wire sizes does the screw terminal accept?

Solid or stranded wire from 0.5 to 4 mm² single, or two conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm².

MPN
3RT2018-1BE41