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Siemens 3SE2120-3WW — Limit Switches

Siemens 3SE2120-3WW

MPN3SE2120-3WW

METAL-ENCLOSED POSITION SWITCH, SLOW-ACTION CONTACTS SLOW-ACTION CONTACTS WITH OVERLAPPING ROD LEVER,MOLDED-PLASTIC ROD, 1 X M20 X 1.5

StockContact for availability
MOQ1 pcs
Sourced new & surplus through independent channelsAuthenticity-screened · ESD-safe packingListing updated Jul 2026
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Specifications

Identification

3SE2120-3WW — Identification
ParameterValue
Product designationposition switch

Switching & Safety

3SE2120-3WW — Switching & Safety
ParameterValue
Auxiliary NO contacts1
Auxiliary NC contacts1
Circuit principleslow-action make-before-break contacts
Switching function designCO contact
Active principlemechanical
Safety-related switching contacts1
Suitable as safety switchNo
Switching contact designmechanical
Safety-related interface connectorwithout

Mechanical

3SE2120-3WW — Mechanical
ParameterValue
Actuating element designrod actuator
Standard-compliant actuator headEN 50041, design D
Enclosure materialmetal
Fastening methodscrew fixing
Length281 mm
Width40 mm
Enclosure coatingpainted
Housing design standarddesign complying with EN 50041

Environmental

3SE2120-3WW — Environmental
ParameterValue
IP protection ratingIP67
Operating temperature range-30 ... +85 °C

Wiring

3SE2120-3WW — Wiring
ParameterValue
Electrical connection typescrew-type terminals
Interface connector designwithout
MPN
3SE2120-3WW