Features: 1) Max. rating current and voltage: 3A, 250V AC 2) Contact resistance: ≤50mΩ 3) Insulate resistance: ≥1,000MΩ 4) Dielectric strength: 1,500V; 5) Electronic life (cycles): ≥25,000 6) Machine life (cycles): ≥100,000 7) Action: alternate, moment 8) Button shape round, square, rectangular, mushroom, big square, big rectangular 9) Indication voltage: 2V, 6V, 12V, 24V, 110V, 220V 10) Cap colors: red (R), green (G), yellow (Y), white (W), blue (B), amber (A)