Skip to main content
Log in
Siemens 3RT2018-2XJ41-0LA2 — Contactors

Siemens 3RT2018-2XJ41-0LA2 SIRIUS Contactor, 72 VDC Coil, Si

MPN3RT2018-2XJ41-0LA2

Siemens SIRIUS contactor, Size S00, 3RT2018-2XJ41-0LA2, 72 VDC 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

3RT2018-2XJ41-0LA2 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-2XJ41-0LA2 — 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
3RT2018-2XJ41-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2018-2XJ41-0LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2018-2XJ41-0LA2 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG NH 3NA, DIAZED 5SB, NEOZED 5SE: 35 A
Short-circuit coordination type 2, fusegG NH 3NA, DIAZED 5SB, NEOZED 5SE: 20 A
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2018-2XJ41-0LA2 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 mm²), 2x 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 50022
Side-by-side mountingYes
3RT2018-2XJ41-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-2XJ41-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-2XJ41-0LA2 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

Its 72 VDC coil is terminated via spring-type terminals, which means no screwdriver is needed for the coil wiring — a time-saver during panel build-out and a reliable connection under vibration. The contactor carries an auxiliary switch block, giving you a set of N.O./N.C. contacts for status feedback or interlocking without adding a separate side-mount unit.

This accommodates non-standard panel orientations or retrofit into existing enclosures.

Main contact and coil terminals accept solid or stranded conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². The spring-type terminals on the coil side hold the wire without retightening — strip, insert, done.

Switching performance

These figures matter for sequencing: if you're interlocking two contactors, the overlap window is defined by these timings.

Frequently asked questions

What are the key dimensions for panel layout?

Width is 45 mm, height is 70 mm, depth is 73 mm. Clearances: 10 mm upwards, 10 mm forwards, 10 mm downwards, 6 mm to the side.

What wire sizes does the spring terminal accept?

The spring-type terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded conductors.

What is the coil voltage and type?

The coil is rated at 72 VDC, terminated with spring-type terminals.

Does this contactor include auxiliary contacts?

Yes, it has an integrated auxiliary switch. The auxiliary contacts are rated at 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, 3 A at 400 V, 14 A at 480 V, 2 A at 500 V, 11 A at 600 V, and 1 A at 690 V.

MPN
3RT2018-2XJ41-0LA2