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SSR22 Contactless Safety Door Switch

SSR22 Contactless Safety Door Switch

SSR22 Contactless Safety Door Switch

Bran: ESPE

Model: SSR22 series


Safety switch is a kind device used for monitoring open and close status of movable protective mechanisms such as safety fence door, and protective cover. RFID technology ensure higher security & confidentiality. Sensor & lavel can be matched with universal or unique coding. Small size for easy installation.

  • Product Details
  • Model Selection Table

Technical Parameter

Parameter of safety door switch

ISO13849-1 (Cat.4/ PLe)



Power supplyDC24V±15%
Response time50ms
Risk time50ms
Magnet holding force>15N

Safety output


PNP or NPN (transistor output)Load current below 200mA, residual voltage below 1V

(except voltage drop caused by cable extension), leakage current below 1mA)

Protective circuit
Overvoltage protection, power supply reverse polarity protection, and overcurrent protection
Encoding typeUniversal encoding, unique encoding
Protection rateIP65
Housing setectional size48*30mm

Frequency 10 Hz - 55 Hz, amplitude 0.35±0.05mm, 20 times each at X, Y, Z directions

Ambient working temperature-10°C-55°C (no freezing)
Storage temperature-30°C-70°C (no freezing)
Working humityWhen temperature 20°C, humidity max 85%

Explanation Of Model Number (example:SSR22-00NC-3)

SSR22 Contactless Safety Door Switch

Product Size

SSR22 Contactless Safety Door Switch


SSR22 Contactless Safety Door Switch

Sequence Diagram

NPN diagnostic sequence

PNP diagnostic sequence
SSR22 Contactless Safety Door SwitchSSR22 Contactless Safety Door Switch

Wiring Connection

SSR22 Contactless Safety Door Switch

SSR22 Contactless Safety Door Switch

Wiring Connection

Wire colorFunctionWiring Connection
BrownPower positive poleConnect positive pole
BluePower negative poleConnect positive pole
BlackSafety output 1Connect safety PLC or other safety input control interface
WhiteSafety output 2
GreenSafety input 1

No need cascade:PNP connect positive; NPN connect negative

Use cascade: connect switch safety input signal (0SSD1and OSSD2)

YellowSafety input 2
Pale greenEMDExternal relay or solenoid valve monitoring device
PinkResetConnect reset
GreyAuxiliary outputConnect PLC

Wire Diagram

ModelConfigurationOutput SignalEncoding mode

Simple type

NPNUniversal encoding
SSR22-01NUnique encoding
Universal encoding
SSR22-01PUnique encoding
SSR22-10NStandard typeNPNUniversal encoding
SSR22-11NUnique encoding
Universal encoding
SSR22-11PUnique encoding
SSR22-20NAdvanced typeNPNUniversal encoding
SSR22-21NUnique encoding
SSR22-20PPNPUniversal encoding
SSR22-21PUnique encoding

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