LUT SERIES M PUSHBUTTON SWITCHES SIRCUIT 11 |SPDT| ON | (ON) |] w | Silver a F |.201" Dia. 61 | DPpT | ON | (ON) Rated 3A @ 125V AC H | .295" Dia. (_) =Momentary Gold over Silver A | Rated 3A @ 125V AC & 0.4VA maximum @ 28V AC/DC maximum Gold G | Rated 0.4VA maximum @ 28V AC/DG maximum E1 | .285" Threaded with D Flat 01 | Solder Lug A E2 | .285" Smooth with D Flat 03 | .250" Straight PC B White $1 | .350" Threaded with Keyway 05 | .425" Wirewrap Cc Red $2 | .350" Smooth with Keyway $4 | .350" Threaded Metric with Keyway 06 | .750" Wirewrap a - 07 | .964" Wirewrap Al 280" Threaded with Keyway 08 | 1.062" Wirewrap A2 | .280" Smooth with Keyway IMPORTANT: Switches are T1 | .410" Threaded with Keyway . supplied without UL & CSA marking unless specified. See Supplement for instructions. DESCRIPTION FOR TYPICAL ORDERING EXAMPLE (MB2411E1W01-FC): SERIES M PUSHBUTTON Red .201" Diameter Cap .285" Threaded Bushing with D Flat SPDT ON-(ON) Circuit Silver Contacts with @ , 3 Amp Rating Solder Lug Terminals NKK? D 48E MM 6428776 0002079 473 Mi | M71 switches * 7850 E. Gelding Dr. + Scottsdale, AZ 85260 - Phone (602) 991-0942 + Fax (602) 998-1435Silver over Silver Rated 3A @ 125V AC Gold over Silver Rated 3A @ 125V AC & PUY SERIES M PUSHBUTTON SWITCHES | 0.4VA maximum @ 28V AC/DC maximum Gold over Brass or Copper AC/DC maximum Rated 0.4VA maximum @ 28V Plunger selection is not required for MB2400 pushbuttons. The PLUNGER POSITION & TERMINAL NUMBERS (. ) = Momentary Normal eywey Down POLE & | a THROW | MODEL SPDT | MB2411 ON (ON) CONNECTED TERMINIALS 4-3 4-2 SCHEMATIC . / DPDT | MB2461 ON (ON) CONNECTED TERMINALS 1-3 4-6 1-2 4-5 SCHEMATIC . Ped . plunger can be used with or without a cap. Terminal numbers are not actually on the switch. Les = (2. SH) Dia 1 (5.54) 218 OE .285" Threaded .285" Smooth 350 Threaded with D Flat with D Flat with Keyway ee 02) x) 2s 52) Dia 838 a - se Ly \ ies $9 Dia_ : 67) 89 Dia_ Bn A _ 82 Dia : Lg .350" Smooth -350" Threaded -280" Threaded with Keyway Metric with Keyway with Keyway (08) Os 3 2) Dia {09) (0.8), (0.5) (0.9) aia ) 144-40 Thd " <4 i 0 \ [ps BMPO75 +82 = 029 n Tt / 105 1 165 ga 0_(( Dio _ fino (80) dia_ {a ine CAT) 36 nN | | ag 63 Ly -280" Smooth with Keyway (0.5) (6.2) Dia 020 244 28) ea La D 4986 MM 642877b O002080 517 a switches + 7850 E. Gelding D Dr. + Scottsdale, AZ 85260 + Phone (602) 991-0942 - Fax (602) 998-1435 -410" Threaded with Keyway (0.8) 031 ] [ bs (8.0) Dia__ 315 {0.5) 020 - 2) (0 4)ISERIES M PUSHBUTTON SWITCHES o1 Solder Lug 03k Ege) AT475 -201 Diameter Cap 03 .250" Straight PC / tate Epoxy Seal 2) 250 rt . a Loan .046 Thk = (0.8) O31 Polycarbonate : H AT496 .295" Diameter Cap Wirewrap YAR -425" 05) Go-amm) 08 .750" msl | (19.05mm) | | | O07 (24.5mm)} Thk = (0.8) O31 RQ 1.062" os (27.0mm) Dimension A = wirewrap terminal lengths as shown beside code boxes, Polycarbonate Colors Available: A Black B White C Red Decorative hardware is available for MB2400 pushbuttons. Conical nut, AT512, two sizes of dress nuts, AT532 or AT533, and a knurled face nut, AT501, are available in either inch or metric dimensions. Detailed illustrations of this hardware is included in the hardware section at the end of this catalog. SOLDERING & WIRING Soldering: 3 seconds @ 350C 5 seconds @ 2709 Wiring: Solder lug terminals have .043" X .079" oblong holes which accommodate 1 solid 18-gauge wire or 2 solid or stranded 20-gauge wires. Panel Thickness with Standard Hardware: For .285" Bushing: 1.74mm (.068") maximum For .350" Bushing: 3.40mm (.134") maximum Single Pole Double Pole Without With With: a Keyway D Flat Locking Ring 7) 189 7 -oF -@-8| 6 6. 3) Nt ia Typ \ Ws) Dia Typ RBZ oe AKK? D SSE BM 6424776 0002081 45b gwitches * 7850 E. Gelding Dr. + Scottsdale, AZ 85260 + Phone (602) 991-0942 - Fax (602) 998-1435 M73Brass, nickel plated AT513H for Inch AT509 AT513M for Metric Lockwasher Hex Nut Steel, chromate over zinc plating ATS507H for Inch ATS507M for Metric Locking Ring Steel, chromate over zinc plating AT515 Locking Ring | for D Flat Bushing Steel, chromate over zinc plating MB2461E1W0O1-FC Modal Shown 144-40 lf >| 1/4-40 Thd or M6 PO.75 i @4)o BB Pia or ~ ~ Se - (10,2) Dia , 402 (12,0) Dia (0.5) 68 er it __.020 , vot oe SSS so! 4g L _t Hardware included with each switch: Two AT513 tot Tig) (H of M) and one AT509. Solder Lug/Single Pole (1.1) x (2.0) Typ Flat G.)Dic, 4 (24) 043 x O79 201 1096 8 2) Te rT 2.84) Di A i (be) ia Py (13.0) ra - Ble rm Pa) Typ 7 | | = _ 185 4.0) 14-40 Tha + l 2 Lio.) 14.5) 035 ATT 64) (7.24) (40) "203 285 0d MB2411E1W0O1-FC Model Shown Solider Lug/Double Pole (1.1) x (2.0) Typ Flat 6.)Dia, 4) (2.4) 043 x O79 aa 096 98 Wp (2.84) Di x : Te y i 7 NC (13.0) TE L No 512 rot |. (4.2) Typ F Hto| 125 comm 0.9) _.h4.5)L. 035 77 (6.4), (724) (140) B53 285 552 M74 ARK? D F6E b42877b OO0e0be 352 switches + 7850 E. Gelding Dr. Scotisdale, AZ 85260 + Phone (602) 991-0942 + Fax (602) 998-1435MB2400 pushbuttons feature many of the fine characteristics found in the other M Series devices, high torque bushings, stainless steel frame, prominent external insulating barriers, epoxy sealed terminals, internal o-ring for splashproofing, longer center solder lug terminals, and 1500V dielectric strength. In addition, the snap-action contact mechanism results in smooth, light touch actuation.. These features exemplify the quality for which NKK is known. These double throw, momentary devices are available in either single or double pole. A variety of bushings, mounting brackets, terminals and ratings provide users with a wide range of options to meet their specific needs. Accessories, such as: a conical nut, decorative dress nuts and bezels with LEDs may be added to the basic switch to enhance front panel appearance. This series is divided into three sections by mounting type: Bushing Mount, Bracketed & Angle PC Mount and Snap-in Mount. In the front of each section, a Typical Ordering Example outlines the different options available for that mounting type. Detail pages following each ordering example provide additional information regarding the options outlined and accessories available. Bushing Mount Bracketed & Angle PC Mount Pages M69 - M74 Pages M75 - M79 SS Snap-in Mount Pages M80 - M82 The MB2400 pushbuiton is a snap-action Straight PC, with and without brackets, right angle PC and vertical PC device usable where short travel and models have been especially designed for compatibility with M Series sensitivity of actuation are required. The toggles. Uniformity of switch bodies, .280" & .350" bushings and light touch, snap-acting contact mechanism footprints for both toggles and pushbuttons make these devices ideal gives these for mounting next to one another. This feature simplifies design of switches sel! panel layout, provides convenient mounting of devices with different an extremely actuators and facilitates interchangeability of PC boards. smooth feel Ll rd * Ey and provides gOS i to audible : o u feedback upon COMMON NO = NC operation. - es = The contact mechanism is double throw 7 hn with a normally closed and a normally open contact. This mechanism also HL HH provides longer electrical life. pt Hew Ue ESE TU vTyY TT VY VT NHK? | Meo gwitcheg + 7850 E. Gelding Dr. + Scottsdale, AZ 85260 - Phone (602)991-0942 + Fax (602) 998-1435 D 98E MM b42877b OO02077 T25 meSERIES M PUSHBUTTON SWITCHES Electrical Capacity: 3A @ 125V AC (Resistive Load) ~ 0.4VA maximum @ 28V AC/DC maximum {Applicable Range 0.1mA ~.0.1A @ 20mV ~ 28V) Contact Resistance: 20 milliohms maximum for silver 30 milliohms maximum for gold Insulation Resistance: 1,000 megohm minimum @ 500V DC Dielectric Strength: 1,000V AC minimum between contacts 1,500V AC minimum between contacts and case Mechanical Life: 200,000 operations minimum Electrical Life: 25,000 operations minimum for silver 100,000 operations minimum for gold Ambient Temp Range: -15C through +70C (+5F through +158F} Optional low temperature lubricant available Nominal Operating Force: Single Pale 250 grams , Double Pole 400 grams Pretravel: 0.7mm {.027") Overtravel: 0.3mm (.012") Total Travel: 1.0mm (.039") Plunger Brass with nickel plating All models are recognized Bushing Brass with nickel plating b O-ring Nitrile butadiene rubber y Frame Stainless stee! Underwriters Laboratories Inc. Base Diallylphthalate resin and certified by Case Polyamide Canadian Standards Association Movable Contactor Phosphor bronze with silver or gold plating , for . Movable Contacts Silver alloy (code W); silver alloy with gold plating 3A @ 125V AC over nickel (code A); or copper with gold plating or over nickel (code G) 0.4VA maximum @ 28V maximum AC/DC Stationary Contacts Silver with silver plating (code W); silver with gold plating over nickel (code A); or copper or brass UL File No. E44145 with gold plating over nickel (code G) CSA File Nos. LR 23535 and LR56017 Terminals Copper or brass with silver plating; copper or brass with gold plating over nickel M70 ARK. | D FE b42877b o002078 bd = . switches + 7850 E. Gelding Dr. + Scottsdale, AZ 85260 .- Phone (602) 991-0942 + Fax (602) 998-1435