LB series - Pushbutton switches

General specification

• Ø18 mm mounting hole;
• 34,9 mm depth;
• 3 different shapes (round Ø22 mm, square 22x22 mm or rectangular 22x28 mm);
• 2 different functions : illuminated pushbutton, pushbutton;
• PCB terminal also available with gold contacts only;

Environmental specifications

• Operating temperatures: -25 to +60 °C (no freezing), illuminated units : -25 to +55°C;
• Operating Humidity: 45 to 85% RH (no condensation);
• Degree of protection (IEC 60529): IP65;
• Vibration resistance: Operating extremes & damage limits: 5 to 55 Hz, amplitude 0,5 mm;
• Shock resistance: Operating extremes: 100 m/s² maximum, Damage limits: 1,000 m/s² maximum

Electrical specifications

• Rated insulation voltage (Ui): 250 V;
• Rated thermal current (Ith): 3 A (gold contact), 5 A (silver contact):
• Up to 3 contacts (3PDT);
• Contact resistance: 50 mohm max (initial value);
• Insulation resistance: 100 Mohm min (500V DC megger);
• Dielectric strength: 2kV AC / 1min;
• Mechanical durability: Momentary: 2 000 000 operations, Maintained: 250 000 operations
• Electrical durability: 100,000 operations (frequency: momentary: 1 800 operations per hour; other: 1 200 operations per hour;
• Minimum applicable load: 5V AC/DC, 1 mA;

Materials

• Actuator: plastic
• Contact: gold-clad silver or silver