Skip to main content
Siemens 3RT2018-1AP01 — Contactors

Siemens 3RT2018-1AP01 SIRIUS Power Contactor, S00, 24 VDC Co

MPN3RT2018-1AP01
Active

Siemens SIRIUS 3RT2018-1AP01 power contactor, size S00, 24 VDC coil, screw-type terminals, 10 A at 24 V rated value.

$26.67Ref. price · indicative, final on quote
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

3RT2018-1AP01 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-1AP01 — 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
3RT2018-1AP01 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz230 V
3RT2018-1AP01 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-1AP01 — 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)
3RT2018-1AP01 — 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
3RT2018-1AP01 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-1AP01 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-1AP01 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm
3RT2018-1AP01 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

It carries a 24 VDC coil with screw-type terminals and includes an integrated auxiliary switch. Mounting is screw or snap-on onto 35 mm DIN rail per DIN EN 60715, with a mounting position that allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward — useful for tight enclosure layouts.

The main contacts are rated for 10 A at 24 V rated value, with switching capacity derating at higher voltages — 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, and 0.2 A at 440 V. This means the contactor is sized for low-voltage DC control circuits and moderate AC loads, not high-current motor starting. Switching frequency varies by duty class: 1,000 operations per hour at AC-1 (resistive), 750/h at AC-2 and AC-3 (motor starting and running), and 250/h at AC-4 (plugging/inching). The AC-3e rating also caps at 750/h. These limits govern contactor life in repetitive cycling applications. The contactor is rated for a typical mechanical life of 30 million operations.

Wire termination accepts solid or stranded conductors: 0.5 to 4 mm² for single conductors, or 2x (0.5 to 1.5 mm²), 2x (0.75 to 2.5 mm²), and 2x 4 mm² for doubled conductors. Depth is 73 mm, width 45 mm, height 58 mm. The S00 footprint is compact enough for dense panel layouts.

Frequently asked questions

What are the key ratings for this contactor?

The main contacts are rated 10 A at 24 V rated value, with switching frequency up to 1,000 operations per hour at AC-1 duty. The coil is 24 VDC with screw-type terminals. Mechanical life is 30 million operations typical.

What wire sizes does the 3RT2018-1AP01 accept?

Solid or stranded conductors from 0.5 to 4 mm² single, or doubled conductors up to 2x 4 mm². All terminals are screw-type.

What is the mounting method for this contactor?

Screw or snap-on mounting onto 35 mm DIN rail per DIN EN 60715. The mounting position allows ±180° rotation on a vertical surface and ±22.5° tilt forward/backward.

MPN
3RT2018-1AP01