MINIATURE SWITCHES Standard Ordering Table – Pushbutton Switches – Panelmount Maintained and Momentary Action (SPDT) HOW TO ORDER YOUR DESIGN (Bold Face Type indicates items normally in Distributor Stock) Following the table from left to right, the designer is able to specify To determine a part number select the options desired and fill in the boxes in the selection guides illustrated below. the options wanted. The options are described and illustrated on pages 15-16. Pushbutton Switch Selection Guide Pushbutton Cap Cap Terminal Contact Switch Series Circuit Size Color Type Material Other ++ + + + + Suffix Numbers & Letters — Add to Base Catalog Number Base P/N Circuit Cap Size Cap Color Terminal Options Contact Material-Type Other Options PB -123 — ON-NONE-ON 0 — No Cap 0 — No Cap Z — Solder Lugs B — Gold/Nickel/ Epoxy Sealed Push to make C — Printed Circuit Brass Terminals contact and Push 1 — .200 Dia. 1 — Black Z3 — Quick Connect G — Gold/Nickel/ again to reverse W — .750” Wirewrap Silver 2 — .310 Dia. 2 — White action W1 — .964” Wirewrap Q — Coin Silver PBS -126 — ON-NONE-ON* W3 — .425” Wirewrap K — 3 — 375 Dia. 3 — Red Normally Open or W4 — 1.0625” Wirewrap L — Plunger Seal Normally Closed. A — Right Angle P.C. M — (For NC circuit AV — Vertical P.C. use Terminal 2 & .100 Spacing PBW 1, for NO. 2 & 3, AV2 — Vertical P.C. Plunger & Panel for NC and NO. 1, .150 Spacing Seal 2 & 3) *Momentary Contact Ratings are 0.4 VA-28 VAC or DC. Same as B, G and Q respectively except terminals brass with tin nickel alloy over Epoxy seal standard on all terminal options. nickel plate. Consult factory for availability EXAMPLES: PB-12331ZQ = Maintained (Push-Push) circuit, .375” Black Cap, Solder Lug Terminals, Silver Contacts, 6 Amp Rating and Epoxy Sealed Terminals PBW-12613CB = Plunger & Panel Seal, Momentary circuit, .200” Red Cap epoxy sealed Printed Circuit Terminals and 50 Millionths Gold over Brass contacts. APPROXIMATE DIMENSIONS PBW PBS MAINTAINED ACTION PB w /.200 w /.310 w /.375 CAP CAP CAP MOMENTARY ACTION SPECIFICATIONS MATERIALS Contact Rating – Letter codes G and Q – 6 amp at 125 VAC, 3 amp Base (body) — Diallyl Phthalate. U.L. recognized, CSA certified) or 6 amp at 28 VDC resistive. at 250 VAC ( Bushing — Brass, nickel plated. Letter codes B and G – 0.5. volt-amp (VA) maximum @ 28 V Clamp (frame) — Stainless steel. maximum (AC or DC). Switching Contacts and Rockers Letter Code B — gold/nickel/brass Life Under Load (Resistive) Letter Code G — gold/nickel/silver Alternate Action Suffix – 123; 100,000 make-and break cycles Letter Code Q — Coin silver Momentary Action Suffix – 126; 60,000 make-and-break cycles Center Terminal Initial Contact Resistance – 10 milliohms max. 3 VDC, 100 ma for Letter Codes B, G — Gold flash/nickel/brass both silver and gold plated contacts. Letter Code Q — Silver plated brass. Hardware Insulation Resistance – 1,000 MBG. PB and PBS Series Dielectric Strength – 1,000 volts rms at sea level. (2) W-NU-11 hex nuts Bushing Strength – 12 pound-inches without physical damage to (1) W-WA-16 internal tooth lockwasher switch. PBW Series -126 -123 (1) W-NU-11 hex nut Operating Force 1.5 lb. 1.75 lb. (1) W-WA-16 internal tooth lockwasher Pretravel .043 Max. .106 Max. (1) W-WA-44 neoprene panel seal Overtravel .009 Min. .008 Min. 14 Litho in U.S.A GG MINIATURE SWITCHES Pushbutton Switches — Panelmount Maintained and Momentary Action (SPDT) Termination Options C Printed Circuit W Wire-Wrap W1 Wire-Wrap W3 Wire-Wrap W4 Wire-Wrap Z Standard Z3 Quick Connect Mating Receptacle from AMP SPECIAL IND., P.O. Box 984, Paoli, Pa. 19301 Amp P/N single piece 61454 series, strip from 60900 NOTE: Wire-Wrap is a registered trademark of the Gardner-Denver Company. APPROXIMATE DIMENSIONS PB, PBS, PBW SWITCHES w/”A” TYPE RIGHT ANGLE P.C. TERMINALS DIM. PB-123 PB-126 “A” .561 .514 “B” .108.098 P.C. Mounting EPOXY SEALED P.C. TERMINALS ARE SUPPLIED AS STANDARD FOR THESE OPTIONS PB, PBS, PBW SWITCHES w/ “AV” (.100” TERMINAL SPACING) OR “AV2” (.150” TERMINAL SPACING) DIM. PB-123 PB-126 TYPE VERTICAL P.C. TERMINALS “A” .561 .514 “B” .108.098 AV2 AV P.C. Mounting EPOXY SEALED P.C. TERMINALS ARE SUPPLIED AS STANDARD FOR THESE OPTIONS Litho in U.S.A GG 15 MINIATURE SWITCHES Pushbutton Switches — Panelmount Maintained and Momentary Action (SPDT) PUSHBUTTON CAP STYLES FOR PB SERIES SWITCHES ON PAGE 14 PART NUMBER COLOR PART NUMBER COLOR PART NUMBER COLOR W-KN-12 BLACK W-KN-31 BLACK W-KN-14 BLACK W-KN-12A WHITE W-KN-31A WHITE W-KN-14A WHITE W-KN-12B RED W-KN-31B RED W-KN-14B RED W-KN-12C GREEN W-KN-31C GREEN W-KN-14C GREEN W-KN-12D BLUE W-KN-31D BLUE W-KN-14D BLUE W-KN-12E DK. GRAY W-KN-31E DK. GRAY W-KN-14E DK. GRAY W-KN-12F YELLOW W-KN-31F YELLOW W-KN-14F YELLOW W-KN-12G LT. GRAY W-KN-31G LT. GRAY W-KN-14G LT. GRAY Black, white, red are standard. Contact Electroswitch for availability on other colors shown. DECORATIVE FACENUTS FOR PB SERIES AND PS SERIES PART NUMBER W-NU-29A PART NUMBER W-NU-30A (For .310 Dia. Caps) (For .375 Dia. Caps) Part No. W-NU-29A Part No. W-NU-30A Assembled to PB Assembled to PS Series Switch. Series Switch. (See page 4) Finish: Bright chrome plate over brass Finish: Bright chrome plate over brass 16 Litho in U.S.A GG