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Siemens 3SE2120-3A — Limit Switches

Siemens 3SE2120-3A

MPN3SE2120-3A

METAL HOUSING IP67, POSITION SWITCH, WITHOUT DRIVE SLOW-ACTION CONTACTS WITH OVERLAP 1NO+1NC

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

3SE2120-3A key specifications
ParameterValue
Type of electrical connectionscrew-type terminals
Coating of the enclosurepainted
Material of the enclosuremetal
Design of the interfacewithout
Design of the interface for Safety-Related communicationwithout
Width of the sensor40 mm
Design of the housingdesign complying with EN 50041
Design of the housing according to standardYes
Standard-Compliant actuator headEN 50041, design D
Reference code according to IEC 81346-2B
Sensing distancemechanical
During operation-30 ... +85 °C

All specifications

3SE2120-3A additional specifications
ParameterValue
Mountingscrew fixing
Circuit principleslow-action make-before-break contacts
Protection class IPIP67
Length of the sensor92.5 mm
Substance prohibitance07/01/2006
Design of the actuating elementwithout
Design of the switching contactmechanical
Design of the switching functionpositive opening
Suitability for use safety switchNo
Number of switching contacts Safety-Related1
Number of NC contacts for auxiliary contacts1
Number of NO contacts for auxiliary contacts1
MPN
3SE2120-3A