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Siemens 3RT7027-1AP00 — Contactors

Siemens 3RT7027-1AP00 SIRIUS Contactor, 3-Pole AC-3, 690V, S

MPN3RT7027-1AP00

Siemens SIRIUS 3RT7027-1AP00, 3-pole contactor, size S0, AC-3 rated, 690 V max, screw-type terminals, IP20, 45 mm width.

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

3RT7027-1AP00 — Identification
ParameterValue
Contactor frame sizeS0
3RT7027-1AP00 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
3RT7027-1AP00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.24
Rated value @ 50 Hz230 V
3RT7027-1AP00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliabilityacceptability for PLC control (17 V, 5 mA)
3RT7027-1AP00 — Protection & Coordination
ParameterValue
Short-circuit coordination type 1, fusegL/gG NH 3NA: 125 A
Short-circuit coordination type 2, fusegL/gG NH 3NA: 50 A
Aux. switch short-circuit protection, fusefuse gL/gG: 10 A
3RT7027-1AP00 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Aux. / control circuit connectionscrew-type terminals
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 standard mounting rail according to DIN EN 50022
Side-by-side mountingYes
3RT7027-1AP00 — Environmental
ParameterValue
Operating temperature range-10 ... +55 °C
Storage temperature range-25 ... +70 °C
Installation altitude, max.2 000 m
3RT7027-1AP00 — Mechanical
ParameterValue
Width45 mm
Height85.5 mm
Depth91 mm

Product details

Rated operational current at AC-3 peaks at 690 V maximum, and the auxiliary contacts are verified for PLC-level switching down to 17 V at 5 mA — meaning this contactor can drive a logic input directly without an interposing relay. The coil draws 0.82 W on closing and holds at 0.24 W DC, so the control transformer can be sized lean — a common pain point on multi-contactor panels.

Width is 45 mm, depth 91 mm, height 85.5 mm — fits the standard S0 footprint. Side-by-side mounting is allowed with no derating gap, which keeps row density high on the DIN rail. This matters when you're fitting into a tight enclosure or a swing frame. IP20 on the front and at the terminals — standard for enclosed panel gear, not for washdown zones.

Switching duty and ratings

Three main poles, all normally open. The contactor is rated for AC-3 duty (squirrel-cage motor switching) up to 690 V, and carries a DC-13 rating of 0.3 A at 220 V for solenoid loads. Maximum switching frequency is 800 cycles per hour under AC-3, dropping to 250 cycles per hour under AC-4 (plugging/inching). For short-circuit protection, type 1 coordination calls for a 125 A gL/gG fuse; type 2 coordination requires a 50 A fuse. Surge voltage resistance is 6 kV, and the contactor withstands shock pulses of 12.5g at 5 ms and 7.8g at 10 ms — relevant for mobile or vibrating installations.

Frequently asked questions

Will 3RT7027-1AP00 drop into a panel built for 3RT6026-1AN20?

Both are S0 frame size contactors with the same DIN-rail footprint and screw-terminal main circuit connections, so mechanical fit is identical. Verify the coil voltage and control circuit wiring on your specific 3RT6026-1AN20 variant — the 3RT7027-1AP00 uses AC coil control, while the 3RT6026 series includes both AC and DC coil options.

MPN
3RT7027-1AP00