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Siemens 3RT2018-4AR62 — Contactors

Siemens SIRIUS 3RT2018-4AR62 Power Contactor, Size S00, 45 m

MPN3RT2018-4AR62

Siemens SIRIUS power contactor, 3RT2018-4AR62, Size S00, 45 mm width, 73 mm depth, screw and snap-on mounting on 35 mm DIN rail.

Siemens 3RT2018-4AR62 datasheet (PDF)
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

3RT2018-4AR62 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-4AR62 — 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
3RT2018-4AR62 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.24
Rated value @ 50 Hz400 V
3RT2018-4AR62 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-4AR62 — 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)
3RT2018-4AR62 — Connection & Mounting
ParameterValue
Main circuit connectionRing cable lug connection
Aux. / control circuit connectionring terminal lug connection
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2018-4AR62 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-4AR62 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-4AR62 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm
3RT2018-4AR62 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Its 45 mm width and 73 mm depth fit the standard DIN-rail footprint, with screw and snap-on mounting onto 35 mm DIN rail per DIN EN 60715. The AC-1 resistive load rating allows 1,000 ops/h for heater or lighting circuits. The magnet coil connection uses a ring cable lug, a detail that matters when terminating the control wiring — plan for a ring terminal, not a fork or pin.

Mechanical life is rated at 30,000,000 operating cycles typical, which aligns with the SIRIUS S00 platform's longevity for high-cycle applications like conveyor or pump control.

Frequently asked questions

What are the key dimensions for panel layout?

Width is 45 mm, depth is 73 mm, height is 58 mm. Clearance required: 10 mm upwards, forwards, and downwards; 6 mm at the side.

What is the switching frequency for motor loads?

AC-3 duty (motor switching) is rated at 750 operating cycles per hour maximum. AC-4 duty (plugging/inching) is limited to 250 ops/h.

What type of coil connection does it use?

The magnet coil connection is a ring cable lug — not a fork or pin terminal. Plan control wiring accordingly.

MPN
3RT2018-4AR62