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Siemens 3RT2027-1AF00 — Contactors

Siemens 3RT2027-1AF00 SIRIUS Power Contactor, Size S0, 45mm

MPN3RT2027-1AF00
Active

Siemens SIRIUS 3RT2027-1AF00 power contactor, size S0, screw terminals, built-in auxiliary switch, 45 mm width, snap-on DIN rail mounting.

$54.61Ref. price · indicative, final on quote
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3RT2027-1AF00 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-1AF00 — Ratings & Performance
ParameterValue
Rated operational current, AC-12, max.10 A
Rated operational current, AC-4 @ 400 V22 A
Rated value @ 400 V3 A
Rated value @ 500 V2 A
Rated value @ 690 V1 A
Rated value @ 230 V5 hp
Rated value @ 24 V10 A
Rated value @ 60 V2 A
Rated value @ 110 V1 A
Rated value @ 220 V0.3 A
3RT2027-1AF00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz110 V
3RT2027-1AF00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-1AF00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegG: 125A (690V,100kA), aM: 50A (690V,100kA), BS88: 125A (415V,80kA)
Short-circuit coordination type 2, fusegG: 50A (690V,100kA), aM: 25A (690V, 100kA), BS88: 50A (415V, 80kA)
Aux. switch short-circuit protection, fusegG: 10 A (500 V, 1 kA)
3RT2027-1AF00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 1.5 mm²), 2x (0.75 ... 2.5 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
3RT2027-1AF00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-1AF00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-1AF00 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT2027-1AF00 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

Integrator note

It includes a built-in auxiliary switch and has a depth of 97 mm.

Mount on vertical DIN rail (screw or snap-on per EN 60715). Rotate ±180°, tilt ±22.5° on vertical surface. Clearance: 10 mm upwards/downwards, 6 mm sideways. Size S0 leaves room for overload relay without extra hardware.

Frequently asked questions

What coil voltage does the Siemens 3RT2027-1AF00 use?

Buyers must confirm the DC coil voltage matches their control circuit before ordering.

What are the dimensions and mounting style of the 3RT2027-1AF00?

45 mm S0 footprint and snap-on DIN rail mounting determine panel layout fit.

Is the 3RT2027-1AF00 a 3-pole contactor and what current rating does it have?

Pole count and amp rating verify suitability for the motor load.

What is the difference between the 3RT2027-1AF00 and other 3RT2027 variants?

Variant suffixes change coil, aux contacts, or terminals; matching the right SKU avoids misorders.

Where can I download the datasheet PDF for the Siemens 3RT2027-1AF00?

Datasheet is needed for specs, certifications, and panel design submittals.

What is the current price and stock availability of the 3RT2027-1AF00?

Pricing and stock drive sourcing decisions and quote turnaround.

MPN
3RT2027-1AF00