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Siemens 3RT2018-2XF41-2LA2 — Contactors

Siemens SIRIUS 3RT2018-2XF41-2LA2 Contactor, 72-125 VDC Coil

MPN3RT2018-2XF41-2LA2
Active

Siemens SIRIUS, contactor, size S00, 72-125 VDC coil, spring-type terminals, screw and snap-on mounting on 35 mm DIN rail, 45 mm width, 70 mm height, 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

3RT2018-2XF41-2LA2 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-2XF41-2LA2 — 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
3RT2018-2XF41-2LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2018-2XF41-2LA2 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
3RT2018-2XF41-2LA2 — 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)
3RT2018-2XF41-2LA2 — 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
3RT2018-2XF41-2LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-2XF41-2LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-2XF41-2LA2 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

Coil voltage and switching capacity

The coil is rated for DC operation across 72-125 V, with an inrush current peak of 1.1 A. The contactor's DC switching capacity is specified per voltage: at 24 V it handles 10 A, at 48 V and 60 V it handles 2 A, at 110 V it handles 1 A, at 125 V it handles 0.9 A, at 220 V it handles 0.3 A, at 400 V it handles 3 A, at 480 V it handles 14 A, at 500 V it handles 2 A, and at 600 V it handles 11 A. These values define the maximum continuous current the main contacts can interrupt at each DC voltage level — critical for sizing the contactor to the load's voltage and current draw.

The contactor occupies a 45 mm width, 70 mm height, and 73 mm depth footprint. The mounting position is hanging on a horizontal surface. The coil connection uses spring-type terminals accepting solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm².

Frequently asked questions

Where can I buy 3RT2018-2XF41-2LA2 and how do I get a price?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ to receive a firm offer.

What is 3RT2018-2XF41-2LA2's listed depth?

The depth is 73 mm, with a width of 45 mm and height of 70 mm.

What conductor cross-sections does the coil terminal accept?

The spring-type coil terminal accepts solid conductors: 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm². Main contact terminals accept 2x (0.5 to 4 mm²) solid or stranded.

What compliance documentation does this brand provide for 3RT2018-2XF41-2LA2?

As a Siemens SIRIUS product, the contactor is designed to meet applicable IEC and UL standards for industrial control equipment. Specific RoHS, REACH, UL, and IEC declarations are available from the manufacturer's documentation portal.

MPN
3RT2018-2XF41-2LA2