PTR Hartmann

Contacts | Contact Materials

Our micro switches have silver or gold contacts. These are suitable for most applications and render favorable electrical and thermal features. The application range of silver contacts is usually between 12 V AC, 100 mA, up to 250 V AC, 16 A.

Gold plated contacts are used at low currents of a few mA and voltages below approx. 20 V as well as in sulphurous environment. They are not suitable for higher switching capacities.

Since ambient conditions may considerably influence contact safety and electrical load, and thus the lifetime of a switch, we recommend to carry out application-specific tests beforehand.