Electrical Contacts, 2nd Edition

13

Low Current Switching

John W. McBride

And oftentimes excusing the fault Doth make the fault the worse by excuse.

King John, William Shakespeare

CONETNS

13.1    Introduction and Device Classification

13.2    Device Types

13.2.1    Hand-Operated Switches

13.2.1.1    The Rocker Switch Mechanism

13.2.1.2    Lever Switches

13.2.1.3    Slide Switches

13.2.1.4    Rotary Switches

13.2.1.5    Push-Button Switches

13.2.1.6    Switching Devices Used below 0.5 A

13.2.2    Actuated Switches

13.2.2.1    Limit Switches

13.2.2.2    Thermostatic Controls

13.2.2.3    Electro-Mechanical Relay

13.3    Design Parameters for Static Switching Contacts

13.3.1    Small-Amplitude Sliding Motion

13.3.2    Contact Force and Contact Materials

13.3.2.1    Contacts at ...