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Siemens 3RT2027-1NP30 — Contactors

Siemens 3RT2027-1NP30 SIRIUS Power Contactor, S0, 45 mm

MPN3RT2027-1NP30
Active

Siemens SIRIUS 3RT2027-1NP30 power contactor, size S0, 45 mm width, 107 mm depth, screw-type coil terminals, auxiliary switch included.

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

3RT2027-1NP30 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-1NP30 — 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
3RT2027-1NP30 — Control & Coil
ParameterValue
Control supply voltage typeAC/DC
Rated value @ 50 Hz0.51
Rated value @ 50 Hz200 ... 280 V
3RT2027-1NP30 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-1NP30 — 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)
3RT2027-1NP30 — 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
3RT2027-1NP30 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-1NP30 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-1NP30 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm
3RT2027-1NP30 — Specifications
ParameterValue
At AC30 ... 50 ms

Product details

Siemens SIRIUS 3RT2027-1NP30 — Power Contactor, Size S0

The S0 frame size with 45 mm width means this contactor fits into compact DIN-rail arrays where space is tight — it occupies one standard modular device position. Conductor cross-section accepts solid or stranded wire from 1 to 10 mm², covering common motor feeder sizes up to 4 mm² for control wiring and 6–10 mm² for power circuits.

Integration Notes

The auxiliary switch (included) provides one N/O + one N/C contact for feedback to a PLC or status indication; no separate auxiliary block purchase needed for basic interlocking. Coil terminals are screw-type, accepting 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded — common for 1.5 mm² control wiring in panel builds.

Frequently asked questions

What are the key dimensions for panel fit?

Width 45 mm, height 85 mm, depth 107 mm. The S0 frame fits one standard 45 mm DIN-rail position and clears most 200 mm deep enclosures.

What conductor sizes does the 3RT2027-1NP30 accept?

Solid or stranded wire from 1 to 10 mm² for main power connections. Control wiring accepts 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded.

Does the 3RT2027-1NP30 include an auxiliary contact?

Yes, an auxiliary switch is integrated — one N/O and one N/C contact for status feedback or interlocking.

What is the mounting method?

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

MPN
3RT2027-1NP30