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Siemens 3RT2028-1BE80 — Contactors

Siemens SIRIUS 3RT2028-1BE80 Power Contactor, S0, 80 VDC Coi

MPN3RT2028-1BE80
Active

Siemens SIRIUS, power contactor, size S0, 80 VDC coil, screw-type terminals, 3RT2028-1BE80.

Siemens 3RT2028-1BE80 datasheet (PDF)
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

3RT2028-1BE80 — Identification
ParameterValue
Contactor frame sizeS0
3RT2028-1BE80 — 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
3RT2028-1BE80 — Control & Coil
ParameterValue
Control supply voltage typeDC
3RT2028-1BE80 — Contacts & Poles
ParameterValue
Main poles3
Main NO contacts3
Auxiliary contact reliability1 faulty switching per 100 million (17 V, 1 mA)
3RT2028-1BE80 — 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)
3RT2028-1BE80 — 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
3RT2028-1BE80 — Durability
ParameterValue
Durability (operating cycles, typ.)10 000 000
Durability with aux. switch block (cycles, typ.)10 000 000
3RT2028-1BE80 — Environmental
ParameterValue
Operating temperature range-25 ... +60 °C
Storage temperature range-55 ... +80 °C
Installation altitude, max.2 000 m
3RT2028-1BE80 — Mechanical
ParameterValue
Width45 mm
Height85 mm
Depth107 mm

Product details

Siemens SIRIUS 3RT2028-1BE80 — S0 Power Contactor, 80 VDC Coil

Switching Capacity and Duty Ratings

At 24 VDC the contactor switches 10 A; at 48 V and 60 VDC it switches 2 A; at 110 VDC it switches 1 A; at 125 VDC it switches 0.9 A; at 220 VDC it switches 0.3 A; at 400 VDC it switches 3 A. These DC ratings are the load-break limits — for motor loads the AC-3 maximum operating frequency is 750 switching cycles per hour, while AC-4 duty (plugging/inching) is limited to 250 cycles per hour.

Coil and Timing

The coil is rated at 80 VDC with an initial pull-in value of 0.8 times rated and a full-scale dropout of 1.1 times rated. DC closing time is 15–18 ms; arcing time is 10 ms.

The contactor measures 85 mm high × 45 mm wide × 107 mm deep. Main contact screw size is M4 (16–8 Nm torque range). Conductor cross-section for power circuits: 1–10 mm² solid or stranded.

Frequently asked questions

What is the depth of 3RT2028-1BE80?

The depth is 107 mm.

What conductor cross-section does 3RT2028-1BE80 accept?

Solid or stranded conductors from 1 to 10 mm² for main contacts. Auxiliary/coil terminals accept 2x (0.5–1.5 mm²) or 2x (0.75–2.5 mm²).

MPN
3RT2028-1BE80