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Siemens 3RT2028-2BB40-Z W96 — Contactors

Siemens 3RT2028-2BB40-Z W96 Power Contactor, 38 A, 24 VDC, S

MPN3RT2028-2BB40-Z W96
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Siemens SIRIUS 3RT2028-2BB40-Z W96 power contactor, AC-3e/AC-3, 38 A, 18.5 kW / 400 V, 3-pole, 24 V DC coil, 1 NO + 1 NC auxiliary contacts, spring-loaded terminal, size S0.

Siemens 3RT2028-2BB40-Z W96 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

3RT2028-2BB40-Z W96 — Specifications
ParameterValue
Group codeR711
Product group5336
Product classA: Standard product which is a stock item could be returned within the returns guidelines/period.
SeriesSIRIUS 3RT contactors, 3-pole, up to 250 kW
Export control regulationsAL : N / ECCN : N
Compliance with the substance restrictions according to RoHS directiveSince: 01-10-09

Product details

Motor-rated switching for panel builds

The Siemens 3RT2028-2BB40-Z W96 is a SIRIUS 3RT power contactor rated AC-3e/AC-3 at 38 A, good for 18.5 kW motor loads on a 400 V three-phase line. That AC-3e rating means it handles the inrush of a standard squirrel-cage induction motor during starting and breaking, not just resistive heating — the duty class that matters for conveyor, pump, and fan circuits. The 24 V DC coil keeps it on the same control voltage as most PLC digital outputs, so you can drive it directly without an interposing relay. The auxiliary contact block is built in: 1 NO + 1 NC, enough for a feedback signal to the controller and a seal-in circuit.

Frequently asked questions

What is the group code and product group for this part?

Group code R711, product group 5336. These are Siemens internal classification codes used for catalog sorting and cross-reference lookups.

What compliance documentation is available for this contactor?

RoHS compliant since 01-10-09, with REACH Article 33 candidate list disclosure. Export control is AL: N / ECCN: N, meaning no special export licensing is required.

What are the key ratings for this contactor?

AC-3e/AC-3 rated 38 A, 18.5 kW at 400 V, 3-pole. Coil is 24 V DC. Auxiliary contacts: 1 NO + 1 NC. Terminals are spring-loaded, size S0 frame.

MPN
3RT2028-2BB40-Z W96