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Siemens 3TK2040-0BW4 — Contactors

Siemens 3TK2040-0BW4

MPN3TK2040-0BW4

Miniature contactor, Screw terminal, 4 NO Snap-on mounting standard mounting rail 48 V DC DC operation!!! Phased-out product!!! Successor is SIRIUS 3RT23/25

Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026

Specifications

3TK2040-0BW4 — Identification
ParameterValue
Contactor frame size0
3TK2040-0BW4 — Control & Coil
ParameterValue
Control supply voltage typeDC
3TK2040-0BW4 — Contacts & Poles
ParameterValue
Main poles4
Main NO contacts4
3TK2040-0BW4 — Connection & Mounting
ParameterValue
Main circuit connectionscrew-type terminals
Side-by-side mountingYes
3TK2040-0BW4 — Mechanical
ParameterValue
Width45 mm
Height48 mm
Depth68 mm
MPN
3TK2040-0BW4