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Siemens 3RT2518-2XB40-0LA2 — Contactors

Siemens 3RT2518-2XB40-0LA2 Contactor, Size S00, DC Coil

MPN3RT2518-2XB40-0LA2
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Siemens 3RT2518-2XB40-0LA2 contactor, size S00, DC magnet coil 24-34 V, spring-type terminals, screw and snap-on mounting on 35 mm DIN rail, 45 x 70 x 73 mm.

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

3RT2518-2XB40-0LA2 — Identification
ParameterValue
Contactor frame sizeS00
3RT2518-2XB40-0LA2 — 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
3RT2518-2XB40-0LA2 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2518-2XB40-0LA2 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts2
3RT2518-2XB40-0LA2 — 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)
3RT2518-2XB40-0LA2 — 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 DIN rail according to DIN EN 50022
Side-by-side mountingYes
3RT2518-2XB40-0LA2 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2518-2XB40-0LA2 — Environmental
ParameterValue
Operating temperature range-40 ... +70 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2518-2XB40-0LA2 — Mechanical
ParameterValue
Width45 mm
Height70 mm
Depth73 mm

Product details

Size S00 footprint and DIN-rail mounting

The 3RT2518-2XB40-0LA2: Size S00 frame keeps the panel footprint tight at 45 mm wide, 70 mm tall, 73 mm deep — fits in high-density layouts where every DIN-rail millimeter is budgeted. Mounting is screw-and-snap onto 35 mm DIN rail per EN 50022. The contactor can be rotated ±180° on a vertical surface and tilted ±22.5° forward or backward, which helps when the gland plate or busbar layout forces an unconventional orientation. Clearance requirements: 6 mm at the sides, 10 mm upward, forward, and downward. That keeps the arc-chute venting and coil heat dissipation within the enclosure's thermal budget.

DC coil with spring-type terminals — wiring and control logic

The magnet coil is rated for 24-34 V DC with a 2.3 A inrush peak and 10 A holding current at 24 V rated value. The DC coil eliminates the hum and heat of an AC coil in continuous-duty applications. Spring-type terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid/stranded — no screw torque check, no loosening under vibration. The auxiliary switch is integrated, saving a separate order line and a DIN slot.

Environmental range and switching duty

Operating temperature spans -40 to +70 °C, storage from -55 to +80 °C — the contactor handles unheated plant floors and hot panel interiors without derating. Arcing time is 10-15 ms, DC dropout 25-45 ms. At AC-4 maximum the contactor cycles 250 operations per hour — sized for frequent jogging or inching duty on motor loads.

Frequently asked questions

What is 3RT2518-2XB40-0LA2's listed depth?

The depth is 73 mm. Combined with the 45 mm width and 70 mm height, the size S00 frame fits standard 80 mm deep enclosures with room for wiring clearance.

What wire sizes does the spring-type terminal accept?

The terminals accept 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), or 2x 4 mm² solid or stranded conductors — no ferrule required for solid wire.

MPN
3RT2518-2XB40-0LA2