According to NKK Switches, the company has made its reliable MB2000 and MB2400 Series miniature electromechanical push-button switches practical for low-cost designs. Both UL recognized and CSA certified, all models are also furnished with high insulating barriers to increase the isolation of circuits in multi-pole devices. Frames are clinched well above the case and terminals for 1,500 volts of dielectric strength, while terminals are epoxy-sealed to prevent entry of flux and other contaminants. More specifically:
The MB2000 Series comes in single-, double- and 4-pole, double-throw configurations, and offers engineers the flexibility to choose between both momentary and alternate action circuits. The company has designed the MB2000 series with an over-center actuator mechanism that diminishes sparking and increases operating life in AC circuits. In addition, guide-interlocked actuator blocks are precision-manufactured and prevent window locking while maintaining correct plunger alignment, therefore assuring contact reliability. Power-rated models are 6 amps at 125 volts AC and 3 amps at 250 volts AC, or 3 amps at 30 volts DC. Logic level devices are rated at a 0.4 volt-amp maximum at 28 volts AC/DC maximum.
The MB2400 Series of momentary action push-buttons feature a snap-acting mechanism that provides smooth actuation, a short stroke, a light touch and audible feedback. Offering configurations in single- or double-pole models with gold, silver or gold-over-silver contacts, these devices are rated at either 3 amps at 125 volts AC for silver, a 0.4 volt-amp maximum at 28 volts AC/DC for gold or a dual rating when gold-over-silver is specified. The extensive design selections of the MB2400 Series include devices with bushings, as well as snap-in mounted versions.
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