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Siemens 3RT2027-1AC20-ZW96 — Contactors

Siemens 3RT2027-1AC20-ZW96 SIRIUS Power Contactor, S0, 45 mm

MPN3RT2027-1AC20-ZW96
Active

Siemens SIRIUS power contactor, S0 frame, 45 mm wide, 97 mm deep, screw and snap-on DIN-rail mounting, current production.

Siemens 3RT2027-1AC20-ZW96 datasheet (PDF)
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Aug 2026

Specifications

3RT2027-1AC20-ZW96 — Identification
ParameterValue
Contactor frame sizeS0
3RT2027-1AC20-ZW96 — 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
3RT2027-1AC20-ZW96 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz24 V
3RT2027-1AC20-ZW96 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2027-1AC20-ZW96 — 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)
3RT2027-1AC20-ZW96 — 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
3RT2027-1AC20-ZW96 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2027-1AC20-ZW96 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2027-1AC20-ZW96 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth97 mm
3RT2027-1AC20-ZW96 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

What this S0 contactor brings to a panel

The coil termination uses screw-type terminals; main contact wiring accepts solid or stranded 1 to 10 mm². Auxiliary contacts are present (auxiliary switch: Yes), and the contactor carries a typical mechanical life of 10 million operations — no up-tower swaps for the life of a typical wind turbine pitch system.

DIN-rail integration and clearances

The 97 mm depth means it sits flush with standard S0 accessories. Stranded wiring accepts 1 to 10 mm²; for auxiliary circuits, 2x (0.5 to 1.5 mm²) or 2x (0.75 to 2.5 mm²) solid or stranded fits the screw terminals.

Frequently asked questions

What are the key dimensions and mounting for 3RT2027-1AC20-ZW96?

The contactor is 45 mm wide, 85 mm high, and 97 mm deep. It mounts on 35 mm DIN rail per DIN EN 60715 using screw or snap-on fastening, with 10 mm clearance needed above, below, and in front, and 6 mm at the sides.

Where can I buy 3RT2027-1AC20-ZW96?

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

Will 3RT2027-1AC20-ZW96 drop into a panel specified around 3RT2016-1AG62?

Both are S0 frame contactors with 45 mm width and the same DIN-rail mounting, so the mechanical fit and rail spacing are identical. The key difference is the coil voltage and rating — verify the coil data on your 3RT2016-1AG62 against this 3RT2027-1AC20-ZW96 before committing the BOM line.

MPN
3RT2027-1AC20-ZW96