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Siemens 3RT2028-2AV00 — Contactors

Siemens 3RT2028-2AV00 SIRIUS Power Contactor, 34A at 480V

MPN3RT2028-2AV00
Active

Siemens SIRIUS power contactor, Size S0, 3RT2028-2AV00, spring-type terminals, 34 A at 480 V AC-3, screw and snap-on 35 mm DIN rail mounting.

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

3RT2028-2AV00 — Identification
ParameterValue
Contactor frame sizeS0
3RT2028-2AV00 — 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
3RT2028-2AV00 — Control & Coil
ParameterValue
Control supply voltage typeAC
Rated value @ 50 Hz0.25
Rated value @ 50 Hz400 V
3RT2028-2AV00 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2028-2AV00 — 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)
3RT2028-2AV00 — Connection & Mounting
ParameterValue
Main circuit connectionspring-loaded terminals
Aux. / control circuit connectionspring-loaded terminals
Conductor cross-section, solid1 ... 10 mm²
Conductor cross-section, solid or stranded2x (0.5 ... 2.5 mm²)
Conductor cross-section, finely stranded w/ ferrule2x (0.5 ... 1.5 mm²)
Mounting methodscrew and snap-on mounting onto 35 mm DIN rail according to DIN EN 60715
Side-by-side mountingYes
3RT2028-2AV00 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2028-2AV00 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2028-2AV00 — Mechanical
ParameterValue
Width45 mm
Height102 mm
Depth97 mm
3RT2028-2AV00 — Specifications
ParameterValue
At AC4 ... 16 ms

Product details

Siemens SIRIUS 3RT2028-2AV00 — Size S0 Power Contactor, 34 A at 480 V AC-3

The Siemens SIRIUS 3RT2028-2AV00 is a Size S0 power contactor rated 34 A at 480 V in AC-3 duty — the motor-switching rating that governs real-world load handling, not the higher AC-1 resistive figure. Width is 45 mm, depth 97 mm, height 102 mm — fits standard panel layouts with the 35 mm DIN rail profile per DIN EN 60715.

AC-3 maximum switching rate is 750 operations per hour; AC-4 (plugging / inching) drops to 250 ops/h. The AC-1 resistive rating allows 1 000 ops/h, but that's for heater or lighting loads, not motors. If your cycle rate exceeds these, step up a frame size or add a soft-start.

That 6 mm side gap is the tightest constraint; adjacent components need that breathing room for arc extinction and heat dissipation.

Frequently asked questions

How do I get current pricing and availability for 3RT2028-2AV00?

Submit an RFQ through this listing. Pricing and stock are confirmed at quote time through independent distribution channels.

What is 3RT2028-2AV00's listed depth?

Depth is 97 mm. Overall dimensions: width 45 mm, height 102 mm, depth 97 mm.

What wire sizes does the spring terminal accept?

Solid or stranded wire from 1 to 10 mm². Also accepts 2x (0.5 to 2.5 mm²) for daisy-chaining smaller conductors.

Will 3RT2028-2AV00 drop into a panel specified around 3RT2036-1AC20-ZX95 without rewiring?

Both are Size S0 contactors with the same DIN rail footprint and terminal spacing, so mechanical fit is the same. The 3RT2036-1AC20-ZX95 is a higher-current variant; verify your load current against the 3RT2028-2AV00's 34 A AC-3 rating before swapping.

MPN
3RT2028-2AV00