Standard Size Pushbuttons Series LB Distinctive Characteristics Square, round, rectangular, and round panel seal models available. Stainless steel clips provide secure mounting with a wide range of panel thicknesses. Latchdown feature gives indication of circuit status. Audible and tactile feedback with smooth and responsive operation. Snap-action contact mechanism gives long electrical life and sensitivity of actuation. Combination solder lug and .110” quick connect terminals are epoxy sealed to prevent entry of flux, dust, and other contaminants. Panel sealed model meets IP65 of IEC60529 specifications (similar to NEMA 4 & 13). Compact switch design minimizes behind panel depth. Matching illuminated models available and shown in the Illuminated Pushbutton section. Matching indicators available and shown at the end of Section M. Actual Size NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Standard Size Pushbuttons Series LB General Specifications Electrical Capacity (Resistive Load) Power Level (silver): Logic Level (gold): Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Nominal Operating Force: Contact Timing: Travel: Materials & Finishes Housing: Snap-in Frame: Movable Contact: Stationary Contacts: Base: Terminals: Environmental Data Operating Temp Range: Humidity: Vibration: Shock: Sealing: Installation Cap Installation Force: Quick Connect Force: Soldering Time & Temperature: Standards & Certifications Flammability Standards: UL & C-UL Recognized: R CSA Certified: 3A @ 125V AC or 3A @ 250V AC or 3A @ 30V DC 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Note: Find additional explanation in Supplement section. 50 milliohms maximum for silver; 100 milliohms maximum for gold 200 megohms minimum @ 500V DC 1,000V AC minimum between contacts for 1 minute minimum; 1,500V AC minimum between contacts & case for 1 minute minimum 1,000,000 operations minimum for momentary circuit 200,000 operations minimum for maintained circuit 100,000 operations minimum 4.41N Nonshorting (break-before-make) Pretravel .059” (1.5mm); Overtravel .059” (1.5mm); Total Travel .118” (3.0mm) Pretravel .087” (2.2mm); Overtravel .031” (0.8mm); Total Travel .118” (3.0mm) Glass fiber reinforced polyamide (UL94V-0) Stainless steel Silver alloy or copper with gold plating Silver alloy or copper with gold plating Liquid crystal polymer (UL94V-0) Phosphor bronze with silver or gold plating –25°C through +70°C (–13°F through +158°F) Note: When used with a polyvinyl chloride splash cover, the lowest limit is 0°C (32°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) Not available for snap-in; see next section for panel seal. 3.92N maximum downward force on cap 52.95N maximum downward force on connector Manual Soldering: See Profile A in Supplement section. UL94V-0 housing & base All models recognized at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum; UL File No. WOYR2.E44145; add “/U” to end of part number to order UL mark on switch; C-UL File No. WOYR8.E44145; add “/C-UL” to end of part number to order C-UL mark on switch. All models certified at 3A @ 125V or 250V AC or 0.4VA @ 28V AC/DC maximum; CSA File Nos. 023535-0-000; add “/C” to end of part number to order CSA mark on switch. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Series LB Standard Size Snap-in Pushbuttons TYPICAL SWITCH ORDERING EXAMPLE 1 LB S 5 POLES K SHAPES 1 SPDT S Square 2 DPDT C Round R Rectangular W01 C CONTACTS & TERMINALS W01 Silver Contacts Rated 3A @ 125/250V AC Solder Lug/Quick Connect Terminals G01 Gold Contacts Rated 0.4VA @ 28V AC/DC Solder Lug/Quick Connect Terminals CIRCUITS 5 ON (ON) ( ) = Momentary 6 ON HOUSING ON Alternate Action with Latchdown CAP COLORS K Black A Black E Yellow G Blue G Gray B White F Green H C Red Gray Note: Insert Cap with clear lens and colored filter available; see Illuminated Pushbuttons section IMPORTANT: Switches are supplied without UL, C-UL & CSA markings unless specified. Specific models & ratings noted on General Specifications page. DESCRIPTION FOR TYPICAL ORDERING EXAMPLE LB15SKW01-C Red Cap SPDT ON-(ON) Circuit Square Shape Silver Contacts Rated 3A @ 125/250V AC; Solder Lug/Quick Connect Terminals Black Housing NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Series LB Standard Size Snap-in Pushbuttons POLES & CIRCUITS Plunger Position ( ) = Momentary Pole Connected Terminals Normal Down Normal Down Throw & Switch/Lamp Schematics Note: Model SP LB15 *LB16 ON ON (ON) ON 1-3 1-2 SPDT DP LB25 *LB26 ON ON (ON) ON 1-3 4-6 1-2 4-5 DPDT Switch is marked with NC, NO, COM, L+, L–. 3 1 3 1 COM NC 2 NO COM NC 2 NO 6 4 COM NC 5 NO * When in latchdown position for the alternate circuit, cap position is .039” (1.0mm) above the built-in bezel. SHAPES & PANEL CUTOUTS S .622” (15.8mm) Square .854” (21.7mm) Round C .622” x .866” (15.8mm x 22.0mm) Rectangular R (22.0) Dia .866 (16.2) .638 (11.5) .453 (16.2) Sq .638 (22.4) .882 (1.5) R .059 Cutout for 1 switch: .638” x .638” (16.2mm x 16.2mm) Cutout for 1 switch with barriers: .638” x .815” (16.2mm x 20.7mm) Cutout for 1 switch: .638” x .882” (16.2mm x 22.4mm) Cutout for 1 switch with barriers: .638” x 1.059” (16.2mm x 26.9mm) Panel Thickness for Switches & Barriers: .039” ~ .157” (1.0 ~ 4.0mm) Panel Thickness for Protective Guards & Splash Covers: .039” ~ .138” (1.0 ~ 3.5mm) HOUSING K Housing Colors Available: G Black Gray CONTACT MATERIALS, RATINGS & TERMINALS W01 G01 Silver Contacts Power Level 3A @ 125V AC & 250V AC Gold Contacts Logic Level 0.4VA max. @ 28V AC/DC max. Solder Lug/Quick Connect Epoxy Seal (2.0) .079 Complete explanation of operating range in Supplement section. (7.5) .295 (2.8) .110 (1.2) .047 Thk = (0.5) .020 CAPS & CAP COLORS Color Codes: Cap Colors Available: A E B F C G H A Black AT484 Square B White (13.2) Sq .520 C Red (3.5) .138 AT4017 Round E Yellow (19.0) Dia .748 F Green (4.5) .177 (6.5) .256 Material: Polycarbonate G Blue AT4030 Rectangular (13.2) .520 H Gray (19.4) .764 (5.5) .217 (5.0) .197 (6.0) .236 Finish: Glossy NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Series LB Standard Size Snap-in Pushbuttons TYPICAL SWITCH DIMENSIONS Square Single & Double Pole (1.2) x (2.0) Typ .047 x .079 (1.8) .071 (0.5) Typ .020 NC (13.2) Sq .520 3 NO (3.2) .126 (21.5) .846 Latchdown Position LB15SKW01-C (15.8) Sq .622 5 1 4 L (-) (1.0) .039 (17.8) Sq .701 6 2 COM (2.54) Typ .100 L (+) (2.8) Typ .110 (5.08) Typ .200 (7.5) .295 Single pole models do not have terminals 4, 5, & 6. Round Single & Double Pole (1.2) x (2.0) Typ .047 x .079 (1.8) .071 (0.5) Typ .020 NC 3 NO (2.54) Typ .100 (19.0) Dia .748 (23.7) Dia .933 COM (1.0) .039 (3.2) .126 (21.5) .846 L (+) 6 2 5 1 4 L (-) (15.8) Sq .622 (21.7) Dia .854 (2.8) Typ .110 (5.08) Typ .200 (7.5) .295 Latchdown Position LB16CKW01-C Single pole models do not have terminals 4, 5, & 6. Rectangular Single & Double Pole (1.8) .071 (1.2) x (2.0) Typ .047 x .079 (0.5) Typ .020 (13.2) .520 (17.8) .701 (2.54) Typ .100 (19.4) .764 LB26RGW01-C NC NO (1.0) .039 (24.0) .945 (3.2) .126 (22.5) .886 Latchdown Position (7.5) .295 COM 3 L (+) 6 5 2 (15.8) .622 4 1 L (-) (5.08) Typ .200 (22.0) .866 (2.8) Typ .110 Single pole models do not have terminals 4, 5, & 6. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Standard Size Snap-in Pushbuttons Series LB OPTIONAL ACCESSORIES Barriers AT497 End AT498 Center End Position (23.5) .925 (4.3) Typ .169 (5.2) .205 Cutouts for More Than 1 Switch (19.2) .756 A (16.2) .638 (15.0) .591 (20.0) .787 Center Position Square A = .752” (19.1mm) x Number of Switches + .051” (1.3mm) (1.19) .047 Material: Polyamide (1.19) .047 Rectangular A = .996” (25.3mm) x Number of Switches + .051” (1.3mm) (19.2) .756 Protective Guard AT499 Square Protective Guard (10.0) .394 (21.0) .827 Opens 90° Closes manually (17.0) .669 Materials: Cover: Clear Polycarbonate Base: Black GFR Polyamide Cap Height When Assembled (20.0) .787 (14.0) Sq .551 (17.9) Sq .705 (8.0) .315 Protective Guards reduce depth of switch behind panel by .020” (0.5mm). Spring Loaded Protective Guard AT4171 Square Protective Guard (10.5) .413 Opens 180° Closes automatically (17.9) .705 (20.5) .807 (7.1) .280 (18.4) .724 (20.4) .803 Cap Height When Assembled (7.5) .295 (14.2) .559 (17.9) .705 (16.2) Sq .638 (39.0) Min* 1.535 AT4171 Materials: Cover: Clear Polycarbonate Base: Black GFR Polyamide Coil Spring: Stainless Steel (10.5) .413 (20.5) .807 180° (20.4) .803 (N) = Number of switches (20.4) .803 (N) * Minimum dimension allows opening of cover to 180° Recommended Panel Thickness: .039” ~ .106” (1.0mm ~ 2.7mm) NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Standard Size Snap-in Pushbuttons Series LB OPTIONAL ACCESSORIES Protective Guard AT4057 Rectangular Protective Guard Opens 90° Closes manually (10.0) .394 (14.0) .551 (21.0) .827 Cap Height When Assembled Materials: Cover: Clear Polycarbonate Base: Black GFR Polyamide (24.15) .951 (8.0) .315 (26.0) 1.024 Protective Guards reduce depth of switch behind panel by .020” (0.5mm). Spring Loaded Protective Guard AT4172 Rectangular Protective Guard Opens 180° Closes automatically (10.5) .413 (17.9) .705 (20.5) .807 (7.1) .280 (24.6) .969 Cap Height When Assembled (26.6) 1.047 Materials: Cover: Clear Polycarbonate Base: Black GFR Polyamide Coil Spring: Stainless Steel (20.4) .803 (7.5) .295 (24.1) .949 (22.4) .882 Recommended Panel Thickness: .039” ~ .106” (1.0mm ~ 2.7mm) 180° (16.2) .638 (39.0) Min* 1.535 AT4172 (10.5) .413 (20.5) .807 (26.6) 1.047 (N) = Number of switches (26.6) 1.047 (N) * Minimum dimension allows opening of cover to 180° NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Standard Size Snap-in Pushbuttons Series LB OPTIONAL ACCESSORIES Dust Covers AT4002 Round AT4001 Square AT4011 Rectangular Materials: Lid: Polyvinyl chloride Gasket: Polyethylene (21.0) Dia .827 PVC loses pliability below 0°C (32°F. (21.0) Dia .827 Cap Height When Assembled (7.3) .287 (2.5) .098 (21.8) Dia .858 Cap Height When Assembled (30.0) Dia 1.181 (16.5) .650 (16.5) .650 (7.3) .287 (24.0) .945 (22.7) .894 (2.5) .098 (24.0) Sq .945 (30.2) 1.189 Dust Covers reduce depth of switch behind panel by .020” (0.5mm). PCB Adaptors AT711 Single Pole • Straight PC Terminals (0.3) Typ .012 NC NO COM (0.5) .020 (15.0) (4.0) .591 .157 L (+) (-) NO COM (2.54) Typ .100 (0.74) Typ .029 (5.08) .200 Double Pole • Straight PC Terminals (0.3) Typ .012 (5.08) .200 NC L AT712 (15.8) Sq .622 NO (2.54) Typ .100 (1.0) Dia Typ .039 COM (0.5) .020 (15.0) (4.0) .591 .157 (2.54) Typ .100 (0.74) Typ .029 (5.08) Typ .200 NC NC L (+) L (-) NO (15.8) Sq .622 COM (2.54) Typ .100 (1.0) Dia Typ .039 (5.08) .200 Note: Order adaptors separately. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07 Standard Size Snap-in Pushbuttons Series LB ASSEMBLY INSTRUCTIONS Cut Corner Round & Rectangular Match clip on cap assembly with receptacle inside switch. C . .C N 3 25 A 3 K S 5 C -1 5V A C LBA 12 0V A N .C . Projection N .O . Rubber Seal C Projection Notch Square Match projection (C) on cap assembly with groove (C) inside switch. Panel Seal Match projection on cap assembly with notch inside switch. Panel Seal Bushing Mount Snap-in Mount Snap-in clip holds all switches firmly in place. To mount round switch, match the antirotation projection on switch with guide cut in panel. Snap Projection into panel cutout. Panel Insert switch from the front of the panel with the o-ring between the built-in bezel and the panel. Install mounting nut AT075 (supplied with switch) from the Bezel rear of the panel. O-ring Overtightening mounting nut may damage the switch housing. AT109 Cap Extractor AT112 Socket Wrench Panel Mounting Nut LEGENDS LM Easily create and submit your own legends using our new on-line Legend Maker. Visit www.nkkswitches.com For other legend support options, customers may either contact the factory and request the LB Legend Packet, or utilize the general information and basic specifications presented below. Suggested Printable Area for LB Lens (0.76) Typ .030 T AR ST Recommended Methods: Laser Etch on clear lens; Screen Print or Pad Print on lens. Epoxy based ink is recommended. (11.68) .460 (11.68) Sq .460 (13.2) Sq .520 (0.76) Typ .030 (17.48) Dia .688 (19.0) Dia .748 (0.76) Typ .030 (17.88) .704 (13.2) .520 (0.76) Typ .030 (19.4) .764 Shaded areas are printable areas. Additional Method Additional method for legends is engraving the cap. Maximum depth for engraving is .012” (0.3mm) on the cap lens. Enamel paint is recommended to fill the engraved area. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 • www.nkkswitches.com 03-07