Introducing the Grayhill Series 51 Rotary Switches, model 51MBP30-01-1-04S, designed for reliable electronic switching applications. Manufactured in the USA, these rotary switches are RoHS compliant and suitable for various industrial and military environments.
Use left/right arrows to navigate the slideshow or swipe left/right if using a mobile device
Choosing a selection results in a full page refresh.
Press the space key then arrow keys to make a selection.
Shopping Cart
{"id":10023345455421,"title":"51MBP30-01-1-04S","handle":"51mbp30-01-1-04s","description":"\u003ch3\u003eGRAYHILL Rotary Switches 51MBP30-01-1-04S\u003c\/h3\u003e\n\u003cp\u003eIntroducing the Grayhill Series 51 Rotary Switches, model 51MBP30-01-1-04S, designed for reliable electronic switching applications. Manufactured in the USA, these rotary switches are RoHS compliant and suitable for various industrial and military environments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51MBP30-01-1-04S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e GRAYHILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e US\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51mbp30-01-1-04s.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle deck rotary switch with a 0.5\" (12.70 mm) diameter\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch\u003c\/li\u003e\n\u003cli\u003eChoice of 22.5°, 30°, 36°, 45°, 60°, and 90° angles of throw\u003c\/li\u003e\n\u003cli\u003eOptional complete seal for PCB assembly and cleaning\u003c\/li\u003e\n\u003cli\u003eMounting options include PC or solder lug terminals\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eDesigned for wave soldering and conventional cleaning processes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Mechanical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Expectancy\u003c\/td\u003e\n\u003ctd\u003e25,000 cycles at specified loads; 70,000 feet reduced pressure for resistive loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMaximum 20 milliohms (initial 10 milliohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMinimum 1,000 Mohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Breakdown\u003c\/td\u003e\n\u003ctd\u003eMinimum 600 Vac between insulated parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Force\u003c\/td\u003e\n\u003ctd\u003eOver 80 grams with shorting or non-shorting wiping contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Strength\u003c\/td\u003e\n\u003ctd\u003eMinimum 7.5 pound-inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotational Torque\u003c\/td\u003e\n\u003ctd\u003e8–24 oz-in, depending on poles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Seal\u003c\/td\u003e\n\u003ctd\u003eFluorosilicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Seal\u003c\/td\u003e\n\u003ctd\u003eSilicone rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eBase: Thermoset; Rotor: Nylon; Shaft \u0026amp; Stop Blades: Stainless steel; Terminals: Brass, gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions (in inches and millimeters)\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eSeries 50\u003c\/th\u003e\n\u003cth\u003eSeries 51\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003e.500 ± .015 (12.70 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.562 ± .015 (14.27 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB (Style T)\u003c\/td\u003e\n\u003ctd\u003e.576 ± .015 (14.63 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll Others \/ 22.5°\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Options and Configurations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChoice of shaft types including standard, screwdriver slot, metric, and military styles\u003c\/li\u003e\n\u003cli\u003eVarious terminal configurations including solder lug and PC mount\u003c\/li\u003e\n\u003cli\u003eAngles of throw include 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available for MIL-STD compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNote\u003c\/h3\u003e\n\u003cp\u003eFor detailed circuit diagrams, additional dimensions, and mounting options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51mbp30-01-1-04s.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-13T22:22:02+05:30","created_at":"2025-08-13T22:22:02+05:30","vendor":"Waldom Electonics","type":"","tags":["GRAYH","IMPORT_CSV","Switch","WLDM"],"price":334974,"price_min":334974,"price_max":334974,"available":true,"price_varies":false,"compare_at_price":null,"compare_at_price_min":0,"compare_at_price_max":0,"compare_at_price_varies":false,"variants":[{"id":50616394875197,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"51MBP30-01-1-04S","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"51MBP30-01-1-04S","public_title":null,"options":["Default Title"],"price":334974,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"51MBP30-01-1-04S","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/51MBP30-01-1-04S_Series_2050_7543f2dd.jpg?v=1755103926"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51MBP30-01-1-04S_Series_2050_7543f2dd.jpg?v=1755103926","options":["Title"],"media":[{"alt":null,"id":45822493458749,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51MBP30-01-1-04S_Series_2050_7543f2dd.jpg?v=1755103926"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51MBP30-01-1-04S_Series_2050_7543f2dd.jpg?v=1755103926","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGRAYHILL Rotary Switches 51MBP30-01-1-04S\u003c\/h3\u003e\n\u003cp\u003eIntroducing the Grayhill Series 51 Rotary Switches, model 51MBP30-01-1-04S, designed for reliable electronic switching applications. Manufactured in the USA, these rotary switches are RoHS compliant and suitable for various industrial and military environments.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51MBP30-01-1-04S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e GRAYHILL\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCountry of Origin:\u003c\/strong\u003e US\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUnit of Measure:\u003c\/strong\u003e Each (EA)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eECCN:\u003c\/strong\u003e EAR99\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePackage Type:\u003c\/strong\u003e Standard\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51mbp30-01-1-04s.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSingle deck rotary switch with a 0.5\" (12.70 mm) diameter\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch\u003c\/li\u003e\n\u003cli\u003eChoice of 22.5°, 30°, 36°, 45°, 60°, and 90° angles of throw\u003c\/li\u003e\n\u003cli\u003eOptional complete seal for PCB assembly and cleaning\u003c\/li\u003e\n\u003cli\u003eMounting options include PC or solder lug terminals\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eDesigned for wave soldering and conventional cleaning processes\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Mechanical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eDetails\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eLife Expectancy\u003c\/td\u003e\n\u003ctd\u003e25,000 cycles at specified loads; 70,000 feet reduced pressure for resistive loads\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Resistance\u003c\/td\u003e\n\u003ctd\u003eMaximum 20 milliohms (initial 10 milliohms)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulation Resistance\u003c\/td\u003e\n\u003ctd\u003eMinimum 1,000 Mohms\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Breakdown\u003c\/td\u003e\n\u003ctd\u003eMinimum 600 Vac between insulated parts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Force\u003c\/td\u003e\n\u003ctd\u003eOver 80 grams with shorting or non-shorting wiping contacts\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStop Strength\u003c\/td\u003e\n\u003ctd\u003eMinimum 7.5 pound-inches\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotational Torque\u003c\/td\u003e\n\u003ctd\u003e8–24 oz-in, depending on poles\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eShaft Seal\u003c\/td\u003e\n\u003ctd\u003eFluorosilicone\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePanel Seal\u003c\/td\u003e\n\u003ctd\u003eSilicone rubber\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMaterials\u003c\/td\u003e\n\u003ctd\u003eBase: Thermoset; Rotor: Nylon; Shaft \u0026amp; Stop Blades: Stainless steel; Terminals: Brass, gold-plated\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions (in inches and millimeters)\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"5\" cellspacing=\"0\"\u003e\n\u003ctr\u003e\n\u003cth\u003eDimension\u003c\/th\u003e\n\u003cth\u003eSeries 50\u003c\/th\u003e\n\u003cth\u003eSeries 51\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eD\u003c\/td\u003e\n\u003ctd\u003e.500 ± .015 (12.70 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.562 ± .015 (14.27 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB (Style T)\u003c\/td\u003e\n\u003ctd\u003e.576 ± .015 (14.63 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAll Others \/ 22.5°\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003ctd\u003e.537 ± .015 (13.64 ± 0.38)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Options and Configurations\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eChoice of shaft types including standard, screwdriver slot, metric, and military styles\u003c\/li\u003e\n\u003cli\u003eVarious terminal configurations including solder lug and PC mount\u003c\/li\u003e\n\u003cli\u003eAngles of throw include 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available for MIL-STD compliance\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eNote\u003c\/h3\u003e\n\u003cp\u003eFor detailed circuit diagrams, additional dimensions, and mounting options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51mbp30-01-1-04s.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eDatasheet was not processed please search the internet for the part number for more details.\u003c\/p\u003e\u003cbr\u003e"}
