Series MB2000 Miniature Pushbuttons s e gl General Specifications g o T s er Electrical Capacity (Resistive Load) k oc Power Level (silver): 6A @ 125V AC & 3A @ 250V AC or 3A @ 30V DC R Logic Level (gold): 0.4VA maximum @ 28V AC/DC maximum (Applicable Range 0.1mA ~ 0.1A @ 20mV ~ 28V) Logic/Power Level: Combines silver & gold ratings s n o (gold over silver) butt C Note: Find additional explanation dual rating & operating range in Supplement section. h s u P Other Ratings PB Contact Resistance: 10 milliohms maximum for silver; 20 milliohms maximum for gold ed Insulation Resistance: 1,000 megohms minimum @ 500V DC at n Dielectric Strength: 1,000V AC minimum between contacts for 1 minute minimum; mi u 1,500V AC minimum between contacts & case for 1 minute minimum Ill Mechanical Life: 50,000 operations minimum for splashproof models; 100,000 for all other models e abl Electrical Life: 25,000 operations minimum for silver; 50,000 operations minimum for gold m m 50,000 operations minimum for silver at 3A @ 125V AC a gr Nominal Operating Force: Momentary Action: 1-pole 9.32N; 2-pole 16.18N; 4-pole 25.54N; o Pr Alternate Action: 1-pole 4.41N; 2-pole 7.06N; 4-pole 11.77N Contact Timing: Slow make, slow break s ck Plunger Travel: Screw-on Cap (Mom.) Screw-on Cap (Alt.) Snap-on Cap (Mom. & Alt.) o yl Pretravel: .028” (0.71mm) .110” (2.80mm) .125” (3.19mm) e K Overtravel: .043” (1.09mm) .043” (1.10mm) .050” (1.26mm) Total Travel .071” (1.80mm) .153” (3.90mm) .175” (4.45mm) s arie Materials & Finishes ot Plunger: Brass w/nickel plating; polyacetal w/B1 bushing Bushing: Brass with nickel plating R Frame: Stainless steel Case: Diallyl phthalate resin (UL94V-0) Movable Contactor: Phosphor bronze with silver or gold plating s Movable Contacts: Silver alloy (code W); copper with gold plating (code G); or silver alloy with gold plating (code A) e d Sli Stationary Contacts: Silver with silver plating (code W); copper or brass with gold plating (code G); or silver with gold plating (code A) Terminals: Copper or brass with silver plating; copper or brass with gold plating es Environmental Data actil Operating Temp Range: –30°C through +85°C (–22°F through +185°F) T Humidity: 90 ~ 95% humidity for 96 hours @ 40°C (104°F) 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 Tilt Shock: 50G (490m/s2) acceleration (tested in 6 right angled directions, with 5 shocks in each direction) Sealing: B3 & D3 bushing options equivalent to IP67 Installation ch Mounting Torque: 1.5Nm (13.0 lb•in) for double nut; .7Nm (6.0 lb•in) for single nut ou Cap Installation Force: 80.0N (18.0 lbf) maximum downward force on actuator T Soldering Time & Temp: Wave Soldering (PC version): See Profile A in Supplement section. Manual Soldering: See Profile A in Supplement section. ors Process Seal: These devices are not process sealed. Hand clean locally using alcohol based solution. at dic Standards & Certifications n I Flammability Standards: UL94V-0 case UL: File No. E44145 - Recognized only when ordered with marking on switch. s e ori Add “/U” or “/CUL” before dash in part number to order UL recognized switch. ss All models recognized at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V DC max. e c c CSA: File No. 023535_0_000 - Certified only when ordered with marking on switch. A Add “/C” before dash in part number to order CSA certified switch. nt All models certified at 6A @ 125V AC or 3A @ 250V AC or 0.4VA max. @ 28V max. e m e pl p u S C72 www.nkk.com

Series MB2000 Miniature Pushbuttons s e Distinctive Characteristics gl g o T s er k Guide interlocked with actuator block prevents window locking and oc R maintains correct plunger alignment to assure contact stability. s n Employs an over-center actuator mechanism, which diminishes C utto b sparking and increases operating life in AC circuits. h s u P High torque bushing construction prevents rotation PB d or separation from frame during installation. ate n mi u Splashproof option (D3 and B3 bushing codes) features an Ill e o-ring within the bushing and one under the face nut bl a m to protect from splashed, sprayed, or spilled liquids. m a gr o High insulating barriers, formed in the molded Pr diallyl phthalate case, increase isolation of circuits s k c in multipole devices. o yl e K Prominent external insulating barriers increase insulation resistance and dielectric strength. s e ari ot Epoxy sealed terminals prevent entry of solder R flux and other contaminants. s e d Clinching of the frame to the case well above the base Sli and terminals provides 1,500V dielectric strength. s e ctil a T Tilt Bushing Mount Page C74 ch Actual Size u o T s or at c di Bracket PC Mount Page C80 n I s e ori s s e c c A Large Bushing Page C87 nt e m e pl p u S www.nkk.com C73

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e gl TYPICAL SWITCH ORDERING EXAMPLE g o T MB 2011 S S2 G 13 C A s er k c o R s n o utt C b h us Poles & Circuits Contact Materials Caps P & Ratings B 2011 SPDT ON (ON) B .315” (8.0mm) Diameter P nated 2065 SPDT ON ON W SRialvteedr 6A @ 125V AC C .394” (10.0mm) Diameter umi 2061 DPDT ON (ON) & 3A @ 250V AC Ille 2085 DPDT ON ON Gold bl ma 2181 4PDT ON (ON) G Rated 0.4VA max @ Cap Colors m 28V AC/DC max gra 2185 4PDT ON ON A Black o Gold over Silver Pr ( ) = Momentary B White Rated 6A @ 125V AC A s 4-pole not for use with & 0.4VA max @ 28V C Red k yloc right angle terminals AC/DC max E Yellow e K F Green G Blue es Plunger Type Bushings ari H Gray ot S Plunger for Screw-on Caps .335” (8.5mm) R S2 Smooth with Keyway .335” (8.5mm) es S1 Threaded with Keyway Terminals d Sli .200” (5.08mm) .250” (6.35mm) Straight PC 13 Smooth with Keyway with Bracket A2 Only Available in 40 .150” (3.81mm) Vertical PC es IMPORTANT: Part Numbers ctil MB2011SA2G31 & 45 .100” (2.54mm) Vertical PC Ta Switches are supplied without UL, MB2011SA2W31 Right Angle PC with .646” cULus & CSA marking unless specified. 30 (16.4mm) Support to Terminals UL, cULus & CSA recognized only when ordered with marking on the switch. Available in 1- & 2-pole only Tilt Sstpruecctiifiocn sm aordee lnso, treadt inogns G, &en oerradle rSipngec iinfi-- Right Angle PC with .500” 31 (12.7mm) Support to Terminals cations page. Available in 1-pole only h c ou DESCRIPTION FOR TYPICAL ORDERING EXAMPLE T MB2011SS2G13-CA s or at Black .394” (10.0mm) c ndi Diameter Cap I Plunger for Screw-on Caps .335” (8.5mm) Smooth Bushing s orie with Keyway s s e cc SPDT ON-(ON) Circuit A Gold Contacts with 0.4VA Rating nt e .250” (6.35mm) Straight PC m ple Terminals with Bracket p u S C80 www.nkk.com

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e POLES & CIRCUITS gl g o T Plunger Position ( ) = Momentary Connected Terminals Throw & Switch Schematics s Normal Down Normal Down er k Note: Terminal numbers are oc Pole Model R Keyway Keyway not actually on the switch. s n o MB2011 ON (ON) 2 (COM) C butt SP 2-3 2-1 SPDT sh u MB2065 ON ON 3 1 P B P d e MB2061 ON (ON) 2 (COM) 5 nat DP 2-3 5-6 2-1 5-4 DPDT mi u MB2085 ON ON 3 1 6 4 Ill e bl a 4PDT m m 4P MB2181 ON (ON) 2-3 5-6 2-1 5-4 2 5 (COM) 8 11 gra MB2185 ON ON 8-9 11-12 8-7 11-10 Pro 3 1 6 4 9 7 12 10 s k c o PLUNGER TYPE yl e K On alternate action models, after transferring circuit, the plunger returns to its original position and does not latch down. s e S otari Plunger for Screw-on Caps R (2.9) (2.9) .114 .114 s e (.311.80) (.20.931) (.418.75) (.415.07) Slid Momentary Momentary Alternate Alternate Plunger Length Cap Location Plunger Length Cap Location s e ctil a BUSHINGS T .335” (8.5mm) .335” (8.5mm) .200” (5.08mm) S2 S1 A2 Smooth with Keyway Threaded with Keyway Smooth with Keyway Tilt (.00.381) .(264.24) Dia (.00.381) 1/4-40 Thd (.00.381) .(264.24) Dia h (.93.504) Dia .(029.58) (.93.504) Dia .(029.58) (.93.504) Dia .(029.58) Touc (5.08) .200 (3.0) (8.5) (3.5) (8.5) (3.5) .118 .335 .138 .335 .138 s or at Standard hardware: 2 hex nuts (AT513H) dic & 1 lockwasher (AT509) Only available in part numbers In Optional hardware: Locking ring (AT507) MB2011SA2W31 & MB2011SA2G31 s e ori Panel Cutouts ss e c c A (5.6) For S2, S1, or A2 Bushing .220 With Optional Maximum Panel Thickness with with Keyway (.62.556) Dia (0.6) Locking Ring (.62.556) Dia .(265.56) Standard Hardware: .154” (3.9mm) ment .024 (.20.827) Dia ple p u S www.nkk.com C81

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e gl CONTACT MATERIALS & RATINGS g o T W Silver over Silver Power Level 6A @ 125V AC & 3A @ 250V AC s er k c o R G Gold over Brass or Copper Logic Level 0.4VA maximum @ 28V AC/DC maximum ns Note: Complete explanation of operating range in Supplement section. o utt C b h s Power Level 6A @ 125V AC & 3A @ 250V AC Pu A Gold over Silver or Logic Level or 0.4VA maximum @ 28V AC/DC maximum B P d Note: This dual rated option is suitable when two or more identical switches are used in logic and in power circuits e at within the same application. See Supplement section for complete explanation of dual rating and operating range. n mi u Ill TERMINALS e bl a m am 13 .250” (6.35mm) Straight PC 40 45 gr with Bracket .150” (3.81mm) Vertical PC .100” (2.54mm) Vertical PC o Pr s k c o eyl (6.35) K .250 (3.81) (2.54) .150 .100 s e ari ot R 30 Right Angle PC 31 Right Angle PC s de with .646” (16.4mm) Support to Terminal with .500” (12.7mm) Support to Terminal Sli s e ctil Ta (12.7) .500 (16.4) .646 Tilt Only Available in 1 & 2 Pole Note: Full dimensioned drawings appear on the following pages. h c u o T CAPS & CAP COLORS s or B AT413 C AT407 cat .315” (8.0mm) Diameter .394” (10.0mm) Diameter Indi Screw-on Cap .(265.56) Screw-on Cap (.83.105) es Cap Material: PBT Cap Material: PBT ori Finish: Glossy (.83.105) Dia M2.3 P0.4 Finish: Glossy (.1309.40) Dia M2.3 P0.4 s s e c c A nt Cap Colors e A B C E F G H m e Available: Black White Red Yellow Green Blue Gray pl p u S C82 www.nkk.com

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e TYPICAL SWITCH DIMENSIONS gl g o T Single Pole Straight PC with Bracket s er k c o Keyway (4.5) (1.17) Typ R (6.2) Dia .177 .046 .244 (1.6) Typ .063 s (.1309.40) Dia (4.7(.00) .T38y1p) Typ (.1652.28) COM 32 (.1531.20) 23 (.(734.1.971)) TTyypp C hbutton .185 1 1 .185 us P (1.8) Dia Typ (.20.931) (.311.80) ( 6.2.3550) (.00.250) Typ (.(.1031.241.2766)) Typ ..(0015.7593) Dia Typ nated PB (9.0) (8.0) (8.5) (22.9) (7.9) mi .354 .315 .335 .902 .311 Illu e bl a MB2011SS2G13-CA mm a gr o Double Pole Straight PC with Bracket Pr s k c o (3.2) yl Keyway (4.5) .126 (1.6) Typ Ke .(264.24) Dia .177 (.10.4176) Typ .063 .(029.45) Typ (0.8) Typ 6 3 3 6 (7.9) Typ es (10.0) Dia .031 (15.8) COM 5 2 (13.0) 2 5 .311 ari .394 (4.7) Typ .622 .512 (4.7) Typ ot .185 4 1 1 4 .185 R (1.8) Dia Typ (3.0) (0.5) Typ (1.17) Typ .073 (2.3) .118 (6.35) .020 (.40.486) CL .(015.59) Dia Typ des .091 .250 .189 Sli (9.0) (8.0) (8.5) (22.9) (12.7) .354 .315 .335 .902 .500 MB2061SS2G13-CA s e ctil a T Four Pole Straight PC with Bracket (3.2) .126 (1.17) Typ Tilt .046 12 9 6 3 Keyway (4.5) COM 11 8 5 2 (13.0) (6.2) Dia .177 .512 .244 10 7 4 1 ch u o T (0.8) Typ (1.17) Typ (10.0) Dia .031 (15.8) .046 .394 (4.7) Typ .622 (4.8) Typ .185 .189 s (22.3) or .878 at (.311.80) .(002.50) Typ dic (.20.931) ( 6.2.3550) .(016.63) Typ (4.8) Typ In .189 .(395.04) (.83.105) .(383.55) (.2920.29) 23 56 89 1121 (.73.191) Typ ssories e (4.7) Typ c 1 4 7 10 .185 Ac (1.8) Dia Typ .073 nt CL (.10.559) Dia Typ MB2181SS2G13-CA eme pl p u S www.nkk.com C83

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e gl TYPICAL SWITCH DIMENSIONS g o T .150” (3.81mm) Vertical PC Single Pole s er ck Keyway (6.2) Dia o .244 R 3 3 2 (3.81) Typ ons (.1309.40) Dia COM 2 ( 1.531.02) 1 .150 utt C 1 b h (16.4) us .646 P (2.7) (2.3) (0.5) (0.8) Typ .106 .091 .020 .031 B ed P .(015.45) Typ (3.1.2285) (.10.5207) (.10.783) Dia Typ at (5.08) (10.3) (11.75) (16.4) (3.81) Typ (7.9) (2.54) Typ n .200 .406 .463 .646 .150 .311 .100 mi u Ill MB2011SS2G40-CA e bl a m m .150” (3.81mm) Vertical PC Double Pole a gr 6 3 o Pr COM 5 2 (13.0) .512 4 1 s k c o yl (1.27) Typ Ke Keyway (.62.424) Dia .050 (4.8) .189 (12.7) es (10.0) Dia .500 ari .394 ot (4.8) R 3 6 .189 (2.7) (2.3) (0.5) (0.8) Typ 2 5 .106 .091 .020 .031 1 4 (.315.801) Typ (1.4) Typ (3.25) es .055 .128 Slid (5.2.0080) (.1400.36) (1.41.6735) (.1664.46) (.315.801) Typ (16.4) .646 (1.8) Dia Typ es .073 actil ( 2.1.0504) Typ T MB2061SS2G40-CA .150” (3.81mm) Vertical PC Four Pole Tilt 12 9 6 3 COM 11 8 5 2 (13.0) .512 10 7 4 1 h ouc Keyway .(264.24) Dia (.10.5207) Typ T (4.8) Typ .189 (22.3) (10.0) Dia .878 cators .394 3 6 9 12 (.418.89) Typ di In (.210.76) (.20.931) .(002.50) (.00.381) Typ 2 5 8 11 (3.81) Typ 1 4 7 10 .150 (1.4) Typ (3.25) es .055 .128 sori (5.2.0080) (.83.105) (.141.6735) (.1664.46) (.315.801) Typ (16.4) es .646 c c A (1.8) Dia Typ nt .073 me (2.54) Typ e MB2181SS2G40-CA .100 pl p u S C84 www.nkk.com

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e TYPICAL SWITCH DIMENSIONS gl g o T Single Pole .100” (2.54mm) Vertical PC s er k c Keyway (6.2) Dia o .244 R (2.54) 3 3 .100 2 ns (.1309.40) Dia COM 2 ( 1.531.02) 1 C utto 1 hb (16.4) us .646 P (2.7) (2.3) (0.5) (0.8) Typ B .106 .091 .020 .031 P (1.4) Typ (3.25) (1.27) (1.8) Dia Typ ed .055 .128 .050 .073 at ( 5.2.0080) (.1400.36) (1.41.6735) (.1664.46) ( 2.1.0504) Typ (.73.191) ( 2.1.0504) Typ min u Ill e bl a m m MB2011SS2G45-CA a gr o Pr Double Pole .100” (2.54mm) Vertical PC s k c o yl Keyway (6.2) Dia (4.8) Ke .244 .189 (2.54) Typ 3 6 .100 6 3 2 5 (.1309.40) Dia COM 5 2 ( 1.531.02) 1 4 aries 4 1 ot (16.4) R .646 (2.7) (2.3) (0.5)(0.8) Typ (1.27) Typ .106 .091 .020 .031 .050 (1.4) Typ (3.25) (4.8) (1.8) Dia Typ s .055 .128 .189 .073 de (5.2.0080) (.1400.36) (1.41.6735) (.1664.46) ( 2.1.0504) Typ (.1520.07) ( 2.1.0504) Typ Sli s MB2061SS2G45-CA ctile a T Four Pole .100” (2.54mm) Vertical PC 12 9 6 3 Tilt COM 11 8 5 2 (13.0) .512 10 7 4 1 Keyway (6.2) Dia .244 (1.27) Typ h .050 uc (4.8) Typ To (10.0) Dia .189 .394 (22.3) .878 s or (.210.76) (.20.931) .(002.50) (.00.381) Typ 3 6 9 12(.418.89(2) .T5y4p) Typ dicat (1.4) Typ (3.25) .100 n .055 .128 2 5 8 11 I (5.08) (10.3) (11.75) (16.4) (2.54) Typ 1 4 7 10 .200 .406 .463 .646 .100 s e (16.4) ori .646 ss e c c A (1.8) Dia Typ .073 nt (2.54) Typ e .100 m MB2181SS2G45-CA e pl p u S www.nkk.com C85

Series MB2000 Bracket PC Mount Miniature Pushbuttons s e gl TYPICAL SWITCH DIMENSIONS g o T Right Angle PC Single Pole s er k c o R Keyway (10.0) Dia (6.2) Dia .394 .244 COM (4.7) Typ .185 ns 1 2 3 (7.9) 3 2 1 utto C (.415.07) .311 ushb (.416.39) (.1664.64) P (2.9) (0.5) (2.95) (0.8) Typ B .114 .020 .116 .031 ed P .(015.45) Typ (.20.931) (3.1.2285) (.10.2570) (.418.75) Typ (.10.783) Dia Typ at (5.08) (8.0) (11.75) (16.4) (13.0) (2.54) Typ min .200 .315 .463 .646 .512 .100 u Ill e bl a m m a MB2011SS2G30-CA gr o Pr Right Angle PC Double Pole s k c o yl e K Keyway (.1309.40) Dia .(264.24) Dia COM (.418.75) Typ s (3.81) Rotarie 41 52 63 (.1520.70) 63 52 41 .150 (6.4) .252 (4.3) (16.4) .169 .646 es (2.95) (0.8) Typ d (2.9) (2.3) (0.5)(1.27) Typ .116 .031 Sli .114 .091 .020.050 (4.7) Typ (1.8) Dia Typ (1.4) Typ (3.25) (3.81) .185 .073 .055 .128 .150 (13.0) (2.54) Typ (5.08) (8.0) (11.75) (16.4) .512 .100 .200 .315 .463 .646 s e ctil a T MB2061SS2G30-CA Tilt Right Angle PC Single Pole with .500” (12.7mm) Support to Terminal h ouc Keyway (.1309.40) Dia .(264.24) Dia COM T 1 2 3 (7.9) (4.7) Typ (4.5) .311 3 2 1.185 s .177 or (4.3) at .169 (12.7) dic (2.9) (0.5) (3.4) (0.8) Typ .500 n .114 .020 .134 .031 I (1.4) Typ (2.3) (6.9) (1.27) (4.7) Typ .055 .091 .272 .050 .185 (2.54) Typ es (5.08) (8.0) (12.0) (12.7) (13.0) (1.8) Di a.1 0Ty0p ori .200 .315 .472 .500 .512 .073 s s e c c A nt e m e MB2011SA2G31-CA pl p u S C86 www.nkk.com