Key Technical Specifications Parameter Specification Series A16 Product Type Illuminated Pushbutton Switch Shape Cylindrical type (16 mm diameter) Operating portion shape Square 2-way guard Color of operating portion Green Operating function Momentary (On-Momentary) Contact configuration SPDT (Single Pole Double Throw) Lighted method Lighted (LED) Lamp color Green Rated voltage (lamp) 24 VAC/VDC Operating voltage (lamp) 24 VAC/VDC ±5% Rated current (lamp) 8 mA Contact rating (AC) Resistive load: 5 A at 125 VAC / 3 A at 250 VAC Contact rating (DC) Resistive load: 3 A at 30 VDC Minimum applicable load 1 mA at 5 VDC Terminal specifications Solder terminal / Quick connect terminal - 0.110" (2.8mm) Degree of protection (IP rating) IP40 - Dust-protected Panel cutout diameter Circular - 16.00 mm Depth behind flange 28.5 mm Insulation resistance 100 MΩ min. (at 500 VDC) Dielectric strength (same polarity) 1,000 VAC, 50/60 Hz for 1 min Dielectric strength (different polarity) 2,000 VAC, 50/60 Hz for 1 min Dielectric strength (terminals to ground) 2,000 VAC, 50/60 Hz for 1 min Electrical life 100,000 cycles minimum Mechanical life 2,000,000 cycles minimum Operating force (OF) 4.41 N max. Release force (RF) 0.29 N min. Pre-travel (PT) 2.5 mm max. Total travel (TT) Approx. 3 mm Ambient temperature (operating) -10°C to +55°C Ambient humidity (operating) 35% to 85% Vibration resistance (malfunction) 10 to 55 Hz, 1.5 mm double amplitude Shock resistance (destruction) 500 m/s² max. Shock resistance (malfunction) 150 m/s² max. Protection against electric shock Class II PTI (Tracking characteristic) 175 Pollution degree 3 (IEC60947-5-1) Safety standards CE, UL, cUL, TUV, CCC certified