Siemens 3SE2120-3B
MPN3SE2120-3B
METAL-ENCLOSED POSITION SWITCH, SLOW-ACTION CONTACTS 1NO+1NC, WITH CONTACT OVERLAP, PLAIN PLUNGER, 1 X M20 X 1.5
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
| Parameter | Value |
|---|---|
| Type of electrical connection | screw-type terminals |
| Coating of the enclosure | painted |
| Material of the enclosure | metal |
| Design of the interface | without |
| Design of the interface for Safety-Related communication | without |
| Width of the sensor | 40 mm |
| Design of the housing | design complying with EN 50041 |
| Design of the housing according to standard | Yes |
| Reference code according to IEC 81346-2 | B |
| Sensing distance | mechanical |
| During operation | -30 ... +85 °C |
| Mounting | screw fixing |
All specifications
| Parameter | Value |
|---|---|
| Circuit principle | slow-action make-before-break contacts |
| Protection class IP | IP67 |
| Length of the sensor | 92.5 mm |
| Shape of the switch head | rounded |
| Substance prohibitance | 07/01/2006 |
| Design of the actuating element | plunger |
| Design of the switching contact | mechanical |
| Design of the switching function | positive opening |
| Outer diameter of the switch head | 6 mm |
| Suitability for use safety switch | Yes |
| Number of switching contacts Safety-Related | 1 |
| Number of NC contacts for auxiliary contacts | 1 |
| Number of NO contacts for auxiliary contacts | 1 |
MPN
3SE2120-3B