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Siemens 3RT2018-1AD01 — Contactors

Siemens 3RT2018-1AD01 SIRIUS Contactor, S00 Frame, 45mm Wide

MPN3RT2018-1AD01
Active

Siemens SIRIUS 3RT2018-1AD01 power contactor, size S00, 45 mm width, 73 mm depth, 58 mm height, screw-type magnet coil terminals, auxiliary switch included, screw and snap-on mounting on 35 mm DIN rail.

Siemens 3RT2018-1AD01 datasheet (PDF)
StockContact for availability
Lead timeIn Stock wk
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3RT2018-1AD01 — Identification
ParameterValue
Contactor frame sizeS00

Ratings & Performance

3RT2018-1AD01 — 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

Control & Coil

3RT2018-1AD01 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz42 V

Contacts & Poles

3RT2018-1AD01 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)

Protection & Coordination

3RT2018-1AD01 — 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)

Connection & Mounting

3RT2018-1AD01 — 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 DIN rail according to DIN EN 60715
Side-by-side mountingYes

Durability

3RT2018-1AD01 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000

Environmental

3RT2018-1AD01 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m

Mechanical

3RT2018-1AD01 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm

Specifications

3RT2018-1AD01 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Panel fit and mounting — S00 frame on DIN rail

The 3RT2018-1AD01: That compact footprint fits high-density panel layouts where every DIN-rail millimeter counts. These spacing rules keep arc flash and heat dissipation within safe limits during switching.

Switching capability and duty-cycle limits

These ratings define the maximum switching current for signal or pilot-duty loads at each voltage level. The AC-3e rating also caps at 750/h. These limits prevent overheating the coil and contacts under repetitive cycling. The mechanical life is typical 30 million operations — a high endurance figure for a compact contactor in frequent-start applications.

Environmental range and wiring specs

This covers most industrial enclosures and unheated warehouses. The screw terminals handle standard panel wiring without special ferrules.

No direct functional second-source cross-reference is listed.

Frequently asked questions

What compliance documentation does Siemens provide for 3RT2018-1AD01?

The evidence does not list specific certifications (UL, CSA, CE, RoHS, REACH) for this order code. Standard Siemens SIRIUS contactors typically carry IEC/EN 60947-4-1 compliance; confirm the exact documentation package with your Siemens contact or distributor at RFQ time.

MPN
3RT2018-1AD01