WB12T-DA NKK Switches

Series WB Environmentally Sealed Pushbuttons General Specifications Electrical Capacity (Resistive Load) Power Level: 6A 125V AC & 3A 250V AC or 6A 30V DC C Other Ratings Contact Resistance: 10 milliohms maximum for solder lug & screw terminal models 30 milliohms maximum for wire lead terminal models Insulation Resistance: 200 megohms minimum 500V DC Dielectric Strength: 1,500V AC minimum for 1 minute minimum Mechanical Life: 30,000 operations minimum Electrical Life: 15,000 operations minimum Contact Timing: Break before make Total Travel: Alternate Action .177 (4.5mm) Momentary Action .110 (2.8mm) Materials & Finishes Plunger: Brass with nickel plating Bushing & Outer Case: Fiberglass reinforced polyamide (UL94V-0 outer case) Inner Case: Melamine Inner Sealing Ring: Silicone rubber Outer Sealing Ring: Nitrile butadiene rubber Movable Contactor: Copper with silver plating Movable Contacts: Silver alloy with silver plating Stationary Contacts: Silver alloy with silver plating Terminals: Brass with tin plating Wire Lead Covers: Heat resistant polyvinyl chloride (Leads are AWG 16.) Environmental Data Operating Temp Range: 30C through +70C (22F through +158F) Humidity: 90 ~ 95% humidity for 96 hours 40C (104F) Vibration: 10 ~ 55Hz with peak-to-peak amplitude of 1.5mm traversing the frequency range & returning in 1 minute 3 right angled directions for 2 hours 2 Shock: 50G (490m/s ) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) Installation Mounting Torque: 1.5Nm (13 lbin) Soldering Time & Temp: Manual Soldering: See Profile A in Supplement section. Standards & Certifications Flammability Standards: UL94V-0 outer case Wiring Material Standards: UL AWM 1015 Recognized at Flammability VW-1 Temperature Range 20C ~ +105C Maximum Load 600V AWG 16 CSA TEW 105 Certified at Temperature Range 20C ~ +105 C Maximum Load 600V C134 www.nkkswitches.com Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers TogglesEnvironmentally Sealed Pushbuttons Series WB Distinctive Characteristics Single unit construction of the bushing and case gives added protection from environmental elements. C Specially designed contact mechanism for breaking light welds. Minimal contact bounce is achieved with specially designed interlocked switching mechanism. Outer housing of heat resistant resin meets UL 94V-0 flammability standard and provides high arc and tracking resistance. Solder lug and screw terminal models meet IP67 of IEC60529 Standards at front panel (dust tight and water protected for temporary immersion). Behind panel standard is IP60 (dust tight but not water protected). Wire lead models conform fully to IP67 of IEC60529 Standards at front and behind panel (dust tight and water protected for temporary immersion). These models are epoxy sealed at the switch base and covered by an outer case for further protection Actual Size from dust and water (not operable under water). www.nkkswitches.com C135 Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles