PTR Hartmann

Product Configurator

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1 Rating

2 Operating force

3 Ambient temperature

4 Contact arrangement

5 Actuator

6 Fixing position

7 Terminals

8 Contact gap

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Leaf spring mechanism


  • Micro switches design A acc. to DIN 41635
  • Functional final inspection and testing
  • Solid design
  • High-quality materials
  • Very exact switching position

Micro switches, also known as snap action switches, are primarily used as limit switches, but are also suitable for for many other industry applications. The actual switching speed is completely independent from the speed of operation. ISO 9001 approved production together with 100% functional final inspection and testing guarantee reliable operation. These products reflect our long standing experience in design and production of high quality switches.

Length 27.8 mm
Width 10.3 mm
Height 15.9 mm
Mechanical lifetime min 2.000.000 actuations 
Electrical lifetime min. 50.000 actuations, depending on switching capacity 
Movement differential see know how - Overview Actuators Travel | Forces 
Pre-travel see know how - Overview Actuators Travel | Forces 
Overtravel see know how - Overview Actuators Travel | Forces 
Operating position see know how - Overview Actuators Travel | Forces 
Contact opening < 3.0 mm (µ)
Wave soldering Double Wave acc. DIN EN 61760-1:2006 
Housing PBT/PET (UL94-V0) 
Cover PBT/PET (UL94-V0) 
Actuator Phenolic (UL94-V0) 
Pin plating CuZn, Ag plated 
Contacts AgNi, Ag plated 
Contact spring CuBe 
Approvals cURus 
Approvals ENEC-VDE