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Siemens 3RT2018-1AP61 — Contactors

Siemens 3RT2018-1AP61 SIRIUS Power Contactor, S00, 45mm

MPN3RT2018-1AP61
Active

Siemens SIRIUS power contactor, 3RT2018-1AP61, S00 frame, 45 mm width, screw-type terminals, 30M mechanical life, AC-3 750 ops/h.

$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

3RT2018-1AP61 — Identification
ParameterValue
Contactor frame sizeS00
3RT2018-1AP61 — 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
3RT2018-1AP61 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.24
Rated value @ 50 Hz220 V
3RT2018-1AP61 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2018-1AP61 — 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)
3RT2018-1AP61 — 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
3RT2018-1AP61 — Durability
ParameterValue
Durability (operating cycles, typ.)30 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2018-1AP61 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2018-1AP61 — Mechanical
ParameterValue
Width45 mm
Height58 mm
Depth73 mm
3RT2018-1AP61 — Specifications
ParameterValue
At AC4 ... 15 ms

Product details

Mechanical life is rated 30 million operations typical — the contactor will outlast most panel refurbishments in cycling applications like conveyors or pumps. Switching frequency reaches 750 operations per hour under AC-3 duty, so it handles moderate-speed motor starting without derating.

Wire range accepts solid or stranded 0.5–4 mm², with multiple 2-conductor combinations allowed. Screw terminals on both coil and main contacts mean standard termination tools, no special push-in lever needed. Depth is 73 mm, width 45 mm — the smallest S00 footprint for tight enclosures.

Production status is active — this part is in current manufacturing. No last-time-buy or phase-out risk. Standard lead times apply; source to order against an RFQ. If you are locking down a BOM line, this contactor is a straightforward, stable choice.

Frequently asked questions

What is the depth of the 3RT2018-1AP61?

73 mm.

What wire sizes does the 3RT2018-1AP61 accept?

Solid or stranded 0.5–4 mm², with multi-conductor options: 2x (0.5–1.5 mm²), 2x (0.75–2.5 mm²), or 2x 4 mm².

MPN
3RT2018-1AP61