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Siemens 3RT7027-1AQ00 — Contactors

Siemens 3RT7027-1AQ00 S0 Contactor, 3-Pole, AC Coil, 45 mm W

MPN3RT7027-1AQ00

Siemens SIRIUS S0 contactor, 3RT7027-1AQ00, 3-pole, AC coil, screw terminals, 45 mm width, 91 mm depth, IP20, pollution degree 3.

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

3RT7027-1AQ00 — Identification
ParameterValue
Contactor frame sizeS0
3RT7027-1AQ00 — Ratings & Performance
ParameterValue
Rated value @ 400 V3 A
Rated value @ 690 V1 A
Rated value @ 230 V6 A
3RT7027-1AQ00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.24
Rated value @ 50 Hz380 V
3RT7027-1AQ00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliabilityacceptability for PLC control (17 V, 5 mA)
3RT7027-1AQ00 — 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
3RT7027-1AQ00 — 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
3RT7027-1AQ00 — Environmental
ParameterValue
Operating temperature range-10 ... +55 °C
Storage temperature range-25 ... +70 °C
Installation altitude, max.2 000 m
3RT7027-1AQ00 — Mechanical
ParameterValue
Width45 mm
Height85.5 mm
Depth91 mm

Product details

S0 frame, AC coil, three main poles

The Siemens 3RT7027-1AQ00 is a SIRIUS S0-size contactor with three normally open main contacts, rated for AC control voltage. It carries a 6 A rated operational current at 230 V in AC-3 duty — the load category for squirrel-cage motor switching — and 3 A at 400 V. The AC-3 maximum switching rate is 800 operations per hour; the heavier AC-4 duty (inching, plugging) is limited to 250 operations per hour.

DIN-rail mounting and panel fit

The screw-type terminals on main and auxiliary circuits accept 2x (0.5 to 1.5 mm²) solid or stranded, or 2x (0.75 to 2.5 mm²) finely stranded with ferrule.

Coil, auxiliaries, and coordination

Closing power is 0.82 W DC; holding power drops to 0.24 W DC. For type of coordination 2 (limited overcurrent damage), the recommended fuse is gL/gG NH 3NA: 50 A; for type of coordination 1 (no damage), the same fuse type at 125 A. Surge voltage resistance is 6 kV, and shock resistance is 12.5g for 5 ms or 7.8g for 10 ms sine pulse.

Frequently asked questions

What is the width and depth of 3RT7027-1AQ00?

Width is 45 mm, depth is 91 mm, height is 85.5 mm — the standard S0 frame size for DIN-rail mounting.

Will 3RT7027-1AQ00 drop into a panel specified around 3RT6017-1AF01 without rewiring?

Both are S0-frame contactors on 35 mm DIN rail, so the physical footprint and mounting are identical. The main difference is the coil voltage type — this unit uses an AC coil, while the 3RT6017-1AF01 may use a different coil voltage. Verify the control supply matches before substitution; the terminal layout and wiring access are the same.

What compliance documentation does Siemens provide for 3RT7027-1AQ00?

The declaration of conformity covers the applicable IEC/EN standards for the SIRIUS S0 contactor family. The contactor is rated for pollution degree 3 and carries IP20 on both front and terminals. Specific RoHS/REACH declarations are available from the manufacturer upon request.

Where can I buy 3RT7027-1AQ00?

This part is sourced and quoted to order against an RFQ through independent distribution. Availability and current pricing are confirmed at quote time — submit an RFQ for a firm price and lead time.

MPN
3RT7027-1AQ00