Short Body Pushbuttons Series YB Distinctive Characteristics Full face or spot illumination with incandescent lamps or multi-element LEDs, with or without resistors. Choice of super bright LEDs in white, green, and blue as well as bright LEDs in red, amber, and green. Combination bezel-barrier is an integral part of the switch and prevents accidental actuation. Unique, patented thermoplastic elastomer seal inside caps plus rolled sleeve of nitrile butadiene rubber at joining of housing and inner case, all for added protection to interior mechanism. Dust and oil tight as well as splashproof panel seal models qualify to IP65 of IEC529 Standards (similar to NEMA 4 and 13). Panel seal models provided with exterior o-ring. Distinctive design of snap-action contacts for shock resistance, long life, and sensitive actuation. High density design to give behind panel depth of less than one inch. Tin-lead plated terminals are epoxy sealed to lock out flux, dust, solvents, and other contaminants. Latchdown for indication of circuit status, plus audible, tactile feedback with smooth, responsive operation. Actual Size Nonilluminated models available and shown in the Pushbutton section. Matching indicators available and shown in the Indicator section. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB General Specifications Electrical Capacity (Resistive Load) Power Level (code W): 3A @ 125V AC or 3A @ 250V AC or 3A @ 30V DC Logic Level (code G): 0.4VA maximum @ 28V AC/DC maximum Note: See Supplement Index (page Z1) to find explanation of operating range. Other Ratings Contact Resistance: Insulation Resistance: Dielectric Strength: Mechanical Life: Electrical Life: Nominal Operating Force: Contact Timing: Travel: 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 action 200,000 operations minimum for alternate action 100,000 operations minimum Single pole: 150 grams for nonsealed; 170 grams for sealed Double pole: 280 grams for nonsealed; 300 grams for sealed Nonshorting (break-before-make) 1.5mm (.059") pretravel; 1.5mm (.059") overtravel; 3.0mm (.118") total travel Materials & Finishes Housing/Bezel: Snap-in Frame: Base: Movable Contactor: Movable Contacts: Stationary Contacts: Power Terminals: Lamp Terminals: Glass fiber reinforced polyamide Stainless steel Diallyl phthalate resin Phosphor bronze with silver plating or gold plating Silver alloy with silver plating or brass with gold plating Silver alloy or copper with gold plating Phosphor bronze with tin-lead plating Phosphor bronze with tin-lead plating Environmental Data Operating Temp Range: Humidity: Vibration: Shock: Sealing: -25°C through +50°C (-13°F through +122°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) IP65 of IEC529 standard for panel seal models Installation Mounting Torque: Soldering Time & Temperature: Process Seal: .80Nm (7.08 lb • in) maximum 3 seconds @ 350°C Not available Standards & Certifications Flammability Standards: UL Recognized: CSA Certified: UL94V-0 housing & base All solder lug models recognized at 3A @ 125/250V AC or 0.4VA @ 28V AC/DC; UL File No. WOYR2.E44145; add "/U" to end of part number to order UL mark on switch. All solder lug models recognized at 3A @ 125/250V AC or 0.4VA maximum @ 28V AC/DC maximum; CSA File No. 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 12-02 Short Body Pushbuttons Series YB TYPICAL SWITCH ORDERING EXAMPLE YB 1 5 K W SHAPES POLES 1 2 C CIRCUITS 5 ON (ON) ( ) = Momentary 6 ON ON Alternate Action with Latchdown K LAMPS CAP TYPES & COLORS Incandescent Lamp Solid Cap: Lens/Insert Colors 5-volt 12-volt 05 12 BB CB EB FB White/White Red/White Yellow/White Green/White GB Blue/White Spot Illuminated Cap Lens/Insert Colors LED for Spot Illuminated Cap W PANEL SEAL W JB Black only CONTACT MATERIALS & RATINGS No Code 6 F HOUSING Bushing Mounting S Square C Round R Rectangular Snap-In Mounting K Square M Round N Rectangular SPDT DPDT 01 Without Panel Seal G TERMINALS Silver Rated 3A @ 125V AC Gold Rated 0.4VA max @ 28V AC/DC max Forward Voltage 2-volt 02 (no resistor) 05 5-volt 12 12-volt 24 24-volt LED Colors 1C Red 01 Solder Lug/ .110" Quick Connect 1D Amber 03 Straight PC 1F Green 1CF Red/Green With Panel Seal (Bushing Mount only) JA JB JC JE JF Bright LED IMPORTANT: Switches are supplied without UL & CSA marking unless specified. Specific models & ratings noted on General Specifications page. Colors LED Cap: Lens/Insert Colors Resistor 5C Red 5D Amber 5F Green No Code 05 12 24 No Resistor 5-volt 12-volt 24-volt JB JC JD JF Super Bright LED DESCRIPTION FOR TYPICAL ORDERING EXAMPLE 6B 6F 6G YB15CKW01-6F-JB Green, Super Bright LED LED Cap with Clear Lens and White Insert Round with Bushing Mounting Black Housing SPDT ON-(ON) Circuit Silver Contacts with 3 Amp Rating Solder Lug/.110" Quick Connect Terminals NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com White Green Blue LED Colors JB 2CF Red/Green Forward Voltage 2-volt 02 (no resistor) 05 5-volt 12 12-volt 24 24-volt Clear/White Clear/Red Clear/Amber Clear/Green LED Cap: Lens/Insert Colors Clear/White LED Cap: Lens/Insert Colors Bicolor LED for Full Face Illuminated Without Panel Seal Clear/Black Clear/White Clear/Red Clear/Yellow Clear/Green JB Clear/White NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Series YB Short Body Pushbuttons POLES & CIRCUITS ( Plunger Position ) = Momentary Connected Terminals Normal Down Normal Down 1-2 Pole Model SP YB15 YB16* ON ON (ON) ON 1-3 YB25 YB26* ON ON (ON) ON 1-3 4-6 DP Throw & Power/Lamp Schematics Notes: Switch is marked with NO, NC, COM, L+, and L-. Lamp circuit is isolated and requires external power source. 1 (COM) SPDT 3 1-2 4-5 1 (COM) DPDT 3 L (+) (-) L L (+) (-) L 2 2 4 6 5 * When in latchdown position for the alternate circuit, cap position is 0.5mm (.020") above the built-in bezel. PANEL SEAL No Code Without Panel Seal W Bushing Mounting With Panel Seal Bushing Mounting only Snap-in Mounting Supplied with mounting nut and o-ring AT089. Supplied with mounting nut. SHAPES & MOUNTING TYPES Bushing Mounting S Square C Round Snap-In Mounting R Rectangular K Square M Round N Rectangular Bezel-barrier is an integral part of the switch body. HOUSING K Black Housing available in black only. The 1-piece body and bezel-barrier have a matte finish. CONTACT MATERIALS & RATINGS W Silver Contacts Power Level 3A @ 125/250V AC G Gold Contacts Logic Level 0.4VA @ 28V AC/DC See Supplement Index (page Z1) for complete explanation of operating range. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Series YB Short Body Pushbuttons TERMINALS 01 03 Solder Lug/ .110" Quick Connect Straight PC Epoxy Seal Wiring The .047" x .079" oblong hole accommodates one solid 18-gauge wire or two solid or stranded 20-gauge wires. (7.3) .288 (2.0) (2.8) .079 .110 (1.2) .047 Thk = (0.5) .020 Epoxy Seal (0.6) R .024 (3.7) Typ .146 3 (4.4) .173 6 5 2 Single Pole (2.8) .110 (1.2) .047 Thk = (0.5) .020 1 (3.0) .118 (5.55) CL .219 Double Pole (4.85) Typ .191 (1.6) Dia Typ .063 (3.7) Typ .146 3 2 4 1 (4.85) Typ .191 (3.0) Typ .118 CL (1.6) Dia Typ .063 (5.55) Typ .219 INCANDESCENT LAMP & SOLID CAP Electrical Specifications Electrical specifications are determined at a basic temperature of 25°C. Lamp circuit is independent of switch operation. For dimension drawing of lamp see the Accessories & Hardware Index (page Y1). If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation and more lamp detail are shown in the Supplement; see Supplement Index (page Z1). AT611 12 Voltage V 5V AC 12V AC Current I 115mA 60mA .150 .150 MSCP Endurance T-1 Bi-pin 05 Hours 7,000 average Ambient Temperature Range -25°C ~ +50°C Solid Cap for Incandescent Lamp (15.0) Dia .591 Lens/Insert Colors Available: BB White/ White CB Red/ White EB Yellow/ White FB Green/ White GB (12.2) .480 (4.0) .157 AT3002 Round Translucent Colored Lens AT3001 Square (15.0) Sq .591 (15.0) .591 (12.2) .480 (4.0) .157 Blue/ White Translucent White Insert (21.0) .827 AT3003 Rectangular Materials: Polycarbonate (Lens & Insert) Thermoplastic Elastomer (Seal/Filter) NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 (12.2) .480 (4.0) .157 Translucent White Seal/Filter Incandescent Lamp AT611 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB SPOT ILLUMINATED CAP WITH BUILT-IN LED This spot-illuminated cap is factory assembled. (15.0) Sq .591 (2.0) .079 (2.0) .079 (5.0) .197 (12.2) .480 (4.0) .157 (5.0) .197 (2.0) .079 (12.2) .480 (4.0) .157 (8.8) .346 (8.8) .346 (+) (+) (+) (-) AT3010 Square (-) AT3011 Round AT3012 Rectangular Colors Available: Red 1D (12.2) .480 (4.0) .157 (5.0) .197 (8.8) .346 (-) 1C (21.0) .827 (15.0) .591 (15.0) Dia .591 Amber 1F Green 1CF Red/Green 02 05 12 24 w/o Resistor w/Resistor w/Resistor w/Resistor Forward Peak Current IFM 20mA 15mA 15mA 12mA Continuous Forward Current IF 15mA 12.5mA 12.5mA 10mA Forward Voltage VF 2.1V 5V 12V 24V Reverse Peak Voltage (not applicable to bicolor) VRM 5V 5V 5V 5V Current Reduction Rate Above 25°C ∆IF 0.27mA/°C ----- ----- ----- Ambient Temperature Range -25°C ~ +50°C Without Resistor 2-volt (+) (-) Single Color With Resistor 5, 12, 24-volt (+) (+) (-) Bicolor (-) (+) Single Color (-) Bicolor Electrical specifications are determined at a basic temperature of 25°C. Lamp circuit is independent of switch operation. Single color LEDs are colored in OFF state. Bicolor LED is translucent white in OFF state. If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation and more lamp detail are shown in the Supplement; see Supplement Index (page Z1). Lens/Insert Colors Available: JA Clear/Black Clear Lens JB Clear/White Colored Insert JC Clear/Red JE Clear/Yellow JF Clear/Green Seal Built-in LED (integral part of the cap) Example part number when cap is ordered separate from switch: AT3010F02JA for a Square Spot Illuminated Cap with Green 2-volt LED without resistor Clear Lens and Black Insert Materials: Polycarbonate (Lens & Insert) and Thermoplastic Elastomer (Seal) NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB BRIGHT LED & LED CAPS Electrical specifications are determined at a basic temperature of 25°C. LED circuit is independent of switch operation. If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation is shown in the Supplement (see page Z1) & lamp drawings are in Accessories & Hardware (see page Y1). Electrical Specifications for Bright LED without Resistor Bright AT628 Color Codes: (+) (-) T-1 Bi-pin 5C 5D Red 5F Amber No Code Green No Resistor Forward Peak Current IFM 40mA 40mA 40mA Continuous Forward Current IF 26mA 26mA 26mA Forward Voltage VF 1.9V 2.0V 2.2V Reverse Peak Voltage VRM 4V 4V 4V Current Reduction Rate Above 25°C ∆IF 0.50mA/°C Ambient Temperature Range -25°C +50°C Electrical Specifications for Bright LED with Resistor Resistor Codes Bright AT634 Color Codes: T-11⁄4 Bi-pin AT634 5-volt, 2-element with Resistor (+) 5C 5D Red 5F Amber Green 05 12 24 Forward Peak Current IFM ––– ––– ––– Continuous Forward Current IF 25mA 20mA 10mA Forward Voltage VF 5V 12V 24V Reverse Peak Voltage VRM 4V 8V 16V Ambient Temperature Range (-) -25°C +50°C AT634 12-volt, (+) 4-element with Resistor (-) AT634 (+) 24-volt, 4-element with Resistor (-) Cap for Bright LED Lens/Insert Color Codes: JB Clear/White JC Clear/Red JD JF AT3004 Square AT3006 Rectangular (15.0) Sq .591 (21.0) .827 (15.0) .591 (12.2) .480 (4.0) .157 Clear/Amber Clear/Green Transparent Clear Lens (12.2) .480 (4.0) .157 Translucent Colored Insert AT3005 Round (15.0) Dia .591 Translucent White Seal/Diffuser (12.2) .480 (4.0) .157 Materials: Polycarbonate (Lens & Insert) Thermoplastic Elastomer (Seal/Diffuser) NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 Bright LEDS AT628 AT634 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB SUPER BRIGHT LED & LED CAPS Electrical specifications are determined at a basic temperature of 25°C. LED circuit is independent of switch operation. If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation is shown in the Supplement (see page Z1) & lamp drawings are in Accessories & Hardware (see page Y1). Electrical Specifications for Super Bright LED Attention Super Bright AT625G Blue AT631B White AT632F Green (+) Electrostatic Sensitive Devices T-1 Bi-pin (-) Colors: 6B 6F 6G White Green Blue Forward Peak Current IFM 30mA 30mA 30mA Continuous Forward Current IF 20mA 20mA 20mA Forward Voltage VF 3.6V 3.5V 3.6V Reverse Peak Voltage VRM 5V 5V 5V Current Reduction Rate Above 25°C ∆IF 0.50mA/°C Ambient Temperature Range -25°C ~ +50°C Cap for Super Bright LED AT3014 Square AT3015 Round (15.0) Sq .591 (12.2) .480 (4.0) .157 Lens/Insert Colors Available: JB Clear/White Materials: Polycarbonate (Lens & Insert) Thermoplastic Elastomer (Seal/Diffuser) AT3016 Rectangular (15.0) Dia .591 (15.0) .591 (21.0) .827 (12.2) .480 (4.0) .157 (12.2) .480 (4.0) .157 Transparent Clear Lens Translucent Colored Insert Translucent White Seal/Diffuser Super Bright LEDs AT625 AT631 AT632 NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB BICOLOR LED & LED CAPS Electrical specifications are determined at a basic temperature of 25°C. LED circuit is independent of switch operation. If the source voltage is greater than rated voltage, a ballast resistor is required. The ballast resistor calculation and more lamp detail are shown in the Supplement; see Supplement Index (page Z1). Electrical Specifications for Bicolor LED Bicolor AT621 2CF Bicolor LED is translucent white in OFF state. Red/Green 05 12 24 Forward Peak Current IFM 60mA 60mA 20mA 12mA Continuous Forward Current IF 45mA 45mA 15mA 10mA Forward Voltage VF 2.1V 5V 12V 24V Current Reduction Rate Above 25°C ∆IF 0.80mA°C ----- ----- ----- Ambient Temperature Range T-11⁄2 Bi-pin AT621 Bicolor LED 2-volt 6-element w/o Resistor 02 (+) (-) -25°C ~ +50°C AT621 Bicolor LED 5-volt 6-element (+) with Resistor (-) AT621 Bicolor LED 12 & 24-volt 6-element with Resistor (+) (-) As shown for Red; Reverse polarity for Green LED Caps Square AT3004 Rectangular AT3006 (15.0) Sq .591 (12.2) .480 (4.0) .157 (15.0) .591 (21.0) .827 Round AT3005 (12.2) .480 (4.0) .157 (15.0) Dia .591 (12.2) .480 (4.0) .157 Transparent Clear Lens Transparent Colored Insert Lens/Insert Colors Available: JB Translucent White Seal Diffuser Clear/White Materials: Polycarbonate (Lens & Insert) Thermoplastic Elastomer (Seal/Diffuser) NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 Bicolor AT621 www.nkkswitches.com 12-02 Series YB Short Body Pushbuttons TYPICAL SWITCH DIMENSIONS Square • Bushing Mounting Single & Double Pole (9.4) .370 (3.7) .146 (1.2) x (2.0) Typ .047 x .079 M15.8 P1 (0.5) Typ .020 NC NO 6 L -+ (10.9) .429 (15.0) Sq .591 (18.0) Sq .709 4 COM (6.0) .236 (11.1) .437 (7.3) .288 (24.3) .957 (8.3) .327 (9.7) .382 5 1 (2.8) Typ .110 NO 3 2 Single pole models do not have terminals 4, 5, & 6. YB15SKW01-12-CB Round • Panel Seal Single & Double Pole (9.4) .370 (0.5) .020 (3.7) .146 (1.2) x (2.0) Typ .047 x .079 (0.5) Typ .020 M15.8 P1 NC NO 6 L -+ (0.5) .020 (3.0) .118 (15.0) Dia .591 (18.0) Dia .709 (10.9) .429 (5.3) (24.3) .209 .957 Latchdown Position (9.7) .382 5 1 (2.8) Typ .110 NO 3 2 4 COM (6.0) .236 (11.1) .437 (7.3) .288 Single pole models do not have terminals 4, 5, & 6. YB25WCKW01-12-EB Rectangular • Snap-in Mounting Single & Double Pole (3.7) .146 (1.2) x (2.0) Typ .047 x .079 (0.5) Typ .020 NC NO 3 6 L -+ 2 (2.8) Typ .110 1 (24.0) .945 (8.3) .327 5 (9.7) .382 4 COM (7.3) .288 (21.0) .827 NO (15.0) .591 (18.0) .709 (6.0) .236 (11.1) .437 (24.3) .957 Single pole models do not have terminals 4, 5, & 6. YB15NKW01-C04-JC PANEL THICKNESS & CUTOUTS Bushing & Panel Seal Mount Panel Thickness 0.5mm ~ 5.0mm (.020" ~ .197") Snap-in Mount Panel Thickness 1.0mm ~ 3.5mm (.039" ~ .138") 0.2 (16.0) –+ 0.0 Dia Typ .630 NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 (1.2) R .047 0.2 (16.0) +– 0.0 Dia Typ .630 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB OPTIONAL ACCESSORIES Splash Covers and Protective Guards reduce the depth of switch behind panel by 1.2mm (.047") Panel Thickness Range with Splash Cover or Protective Guards Bushing Mounting 0.5 ~ 3.8mm (.020 ~ .150") Snap-in Mounting 0.5 ~ 2.3mm (.020 ~ .091") ; Panel Seal 0.5 ~ 3.0mm (.020 ~ .118") Dust/Splash Cover AT4115 Dust Cover for Snap-in or Bushing Mount (16.2) .638 Materials: Lid: Polyvinyl Chloride Base: Polyamide O-ring: Nitrile butadiene rubber AT4115 (5.9) .232 AT4115 with AT541 O-ring Splash Cover for Bushing Mount (16.0) Dia .630 AT541 (20.0) Dia .787 (5.2) .205 (0.5) .020 (29.2) 1.150 (23.2) .913 Protective Guard Assembled Cap Height AT4072 Protective Guard Opens 90° Closes manually (1.2) .047 (12.0) .472 (22.9) .902 Materials: Lid: Polycarbonate Base: Glass Fiber Reinforced Polycarbonate (1.2) .047 (6.6) .260 (11.2) .441 (23.9) .941 (16.0) Dia .630 Spring Loaded Protective Guard Assembled Bezel Height AT4175 Spring Loaded Protective Guard Opens 180° Closes automatically (12.5) .492 (23.4) .921 (16.0) Dia .630 (1.2) .047 (45.0) Min* 1.772 (23.9) .941 (11.4) .449 AT4175 (16.0) Dia .630 180° (12.5) .492 (23.4) .921 (23.9) .941 (24.0) Min .945 Materials: Lid: Polycarbonate Base: Glass Fiber Reinforced Polyamide Coil Spring: Stainless Steel * Minimum dimension allows opening of cover to 180° NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB ASSEMBLY INSTRUCTIONS LED Polarity & Orientation in Lamp Socket Cap Assembly Plunger Attention Spot Electrostatic Sensitive Devices Pinhole Grip Slot Projections Switch Body Positive Lamp Socket Negative Lamp Socket Part Number Flat (-) (+) Top View of Switch Flat (+) (-) Flat (+) (-) (+) (-) Spot Illuminated Cap with Built-in LED LED AT628 AT634 LEDs AT625G AT631B AT632F LED AT621 Installation Tools AT106 Socket Wrench for bushing mounting AT109 Cap Extractor AT111 Lamping Tool (29.6) 1.165 (10.0) .394 (10.0) .394 (16.0) Dia .630 (57.5) 2.264 (18.0) Dia .709 (60.0) 2.362 (50.0) 1.97 (25.0) .954 (1.5) .059 Note: Overtightening the mounting nut AT092 may damage the switch housing. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02 Short Body Pushbuttons Series YB LEGENDS General information and basic specifications are presented here for customers who want to do their own legends. Suggested Printable Area for Lens ON (13.48) (15.0) .531 .591 Recommended Print Method: Screen Print or Pad Print (13.48) Sq .531 (0.76) Typ .030 (13.48) Dia .531 (15.0) Dia .591 (15.0) Sq .591 Epoxy based ink is recommended. (0.76) Typ .030 (0.76) Typ .030 (19.48) .767 (21.0) .827 (0.76) Typ .030 Shaded areas are printable areas. Suggested Printable Area for Film Insert Film Material and Thickness: Clear Polyester, 4 mil max. Lens Recommended Print Method: Screen Print Epoxy based ink is recommended. ON Film Insert Filter (10.68) (12.2) .420 .480 (9.88) (11.4) .389 .449 Seal Cap Base (10.68) Sq .420 (12.2) Sq .480 (0.76) Typ .030 (0.76) Typ .030 (10.68) .420 (0.76) Typ .030 (0.76) Typ .030 (12.2) .480 (16.68) .657 (18.2) .717 (0.76) Typ .030 Shaded areas are printable areas. Additional Methods Additional methods for legends are engraving the lens and laser printing on film inserts. Maximum depth for engraving is 0.3 mm (.012”) on the cap lens. Enamel paint is recommended to fill the engraved area. LEGEND PACKET 1. To order caps with legends contact the factory and request the YB Legend Packet. 2. Once you determine your desired legend, fill out the ordering work sheet included in the packet. 3. Return the completed work sheet to receive a quotation. NKK Switches • email: [email protected] • Phone (480) 991-0942 • Fax (480) 998-1435 www.nkkswitches.com 12-02