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WB series

Product catalog summary

General Specifications
The Series WB Environmentally Sealed Pushbuttons are designed for durability and reliability in various environments. They have an electrical capacity of 6A at 125V AC and 3A at 250V AC, or 6A at 30V DC. The contact resistance is 10 milliohms maximum for solder lug and screw terminal models, and 30 milliohms for wire lead terminal models. Insulation resistance is 200 megohms minimum at 500V DC, and dielectric strength is 1,500V AC for at least one minute. The mechanical life is rated at 30,000 operations, while the electrical life is 15,000 operations. The contact timing is break before make, with total travel for alternate action at 4.5mm and momentary action at 2.8mm.

Materials & Finishes
The plunger is made of brass with nickel plating, while the bushing and outer case are constructed from fiberglass reinforced polyamide. The inner case is melamine, with silicone rubber for the inner sealing ring and nitrile butadiene rubber for the outer sealing ring. The movable contactor is copper with silver plating, and both movable and stationary contacts are silver alloy with silver plating. Terminals are brass with tin plating, and wire lead covers are made from heat-resistant polyvinyl chloride.

Environmental Data
The operating temperature range is from -30°C to +70°C, with humidity tolerance of 90-95% for 96 hours at 40°C. The pushbuttons can withstand vibrations of 10-55Hz with a peak-to-peak amplitude of 1.5mm, and shocks of 50G acceleration in six directions.

Installation
The mounting torque is 1.5Nm, and manual soldering should follow Profile A in the Supplement section.

Standards & Certifications
The outer case meets UL94V-0 flammability standards, and wiring materials conform to UL AWM 1015 and CSA TEW 105 standards.

Distinctive Characteristics
The pushbuttons feature a single unit construction for enhanced environmental protection, a contact mechanism designed to break light welds, and minimal contact bounce due to an interlocked switching mechanism. The outer housing is heat resistant and meets UL 94V-0 standards. Solder lug and screw terminal models meet IP67 standards at the front panel, while wire lead models conform fully to IP67 standards both at the front and behind the panel.

Ordering Information
The pushbuttons are available in various cap colors including black, white, red, amber, yellow, green, blue, and gray. Terminals are available in solder lug, screw lug, and wire lead options. The poles are SPDT, with circuits available in ON-ON and ON-(ON) configurations. Typical switch dimensions and hardware details are provided for installation guidance.

Catalog excerpts

Series WB Environmentally Sealed Pushbuttons Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles General Specifications Electrical Capacity (Resistive Load) Power Level: 6A @ 125V AC & 3A @ 250V AC or 6A @ 30V DC Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Contact Timing: Total Travel: 10 milliohms maximum for solder lug & screw terminal models 30 milliohms maximum for wire lead terminal models 200 megohms minimum @ 500V DC 1,500V AC minimum for 1 minute minimum 30,000 operations minimum 15,000 operations minimum Break before make Alternate Action .177" (4.5mm); Momentary Action .110" (2.8mm) Materials & Finishes Plunger: Bushing & Outer Case: Inner Case: Inner Sealing Ring: Outer Sealing Ring: Movable Contactor: Movable Contacts: Stationary Contacts: Terminals: Wire Lead Covers: Environmental Data Operating Temp Range: Humidity: Vibration: Shock: Installation Mounting Torque: Soldering Time & Temp: Brass with nickel plating Fiberglass reinforced polyamide (UL94V-0 outer case) Melamine Silicone rubber Nitrile butadiene rubber Copper with silver plating Silver alloy with silver plating Silver alloy with silver plating Brass with tin plating Heat resistant polyvinyl chloride (Leads are AWG 16.) -30°C through +70°C (-22°F through +158°F) 90 ~ 95% humidity for 96 hours @ 40°C (104°F) 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 50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) 1.5Nm (13 lbdn) 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 -20°C ~ +105°C; Maximum Load 600V; AWG 16 CSA TEW 105 Certified at Temperature Range -20°C ~ +105° C; Maximum Load 600V

Open the catalog to page 1

Environmentally Sealed Pushbuttons Series WB Single unit construction of the bushing and case gives added protection from environmental elements. 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...

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Series WB Environmentally Sealed Pushbuttons Supplement Accessories Indicators Touch Tilt Tactiles Slides Rotaries Keylocks Programmable Illuminated PB Pushbuttons Rockers Toggles POLES & CIRCUITS STANDARD WIRE COLOR SCHEME Wire leads are covered with heat resistant vinyl in accordance to UL 1015 and CSA TEW 105 Standards for Appliance Wiring Material (AWM). Terminal Numbers & Wire Colors TYPICAL SWITCH DIMENSIONS C136

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Environmentally Sealed Pushbuttons TYPICAL SWITCH DIMENSIONS Wire Lead Colors Available: ABCDEFGH Material: PBT Cap Color Codes: Colors Available: ABCF Finish: Glossy Material: Polystyrene Finish: Glossy Material: Brass with chrome plating Material: Steel with zinc/chromate 1 supplied with each switch 1 supplied with each switch Material: Nitrile butadiene rubber 1 supplied with each switch AT508 Internal Tooth Lockwasher STANDARD HARDWARE

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