Enhance your electronic applications with the reliable and versatile GRAYHILL rotary switch, designed for precision control in various industrial and commercial environments. This high-quality switch features a 9-position rotary configuration, suitable for complex switching requirements.
9-position rotary switch with a 150mA current rating
115V electrical rating suitable for various control circuits
RoHS compliant for environmentally responsible manufacturing
Compact design with a 0.5" diameter for space-constrained applications
Available with optional sealing for PC board assembly and cleaning
Positive shaft grounding for EMI/RFI shielding
Multiple angle throws: 22.5°, 30°, 36°, 45°, 60°, and 90°
Up to 4 poles per deck, with multiple positions per switch (up to 16)
Terminations available: PC or solder lug
Military qualified options available, conforming to MIL‑S‑3786/20 and MIL‑S‑3786/35 standards
Technical Specifications
Dimension
Series 50
Series 51
D
0.500 ± 0.015 inches (12.70 ± 0.38 mm)
0.562 ± 0.015 inches (14.27 ± 0.38 mm)
B (for 30°, 36°, 45°, 60°, 90°)
0.658 ± 0.015 inches (16.71 ± 0.38 mm)
C (for 30°, 36°, 45°, 60°, 90°)
0.234 ± 0.015 inches (5.94 ± 0.38 mm)
E (for 22.5°)
0.153 ± 0.015 inches (3.89 ± 0.38 mm)
Electrical Ratings & Durability
Life expectancy: 25,000 cycles at specified loads and conditions
Contact resistance: 20 milliohms maximum (initial 10 milliohms)
Insulation resistance: 1,000 Mohms minimum
Voltage breakdown: 600 Vac minimum
Contact carry rating: 6 amperes continuous
Materials & Finishes
Switch base: Thermoset
Rotor: Nylon with gold-plated contact alloy
Shaft, stop blades, and stop arm: Stainless steel
Detent balls: Steel, nickel-plated
Bushing: Zinc, tin-zinc plated
Terminals: Brass, gold- and nickel-plated over silver
Additional Details
Mounting hardware includes a brass nut and internal tooth lockwasher
Maximum mounting torque: 15 in-lbs
Process sealed (Style T) versions available for PC board mounting with wave soldering compatibility
Military qualified versions available for demanding environments
For more detailed specifications and options, please refer to the datasheet. Please note that the datasheet was not processed; search the internet for the part number for additional details.
I'm particularly impressed with how carefully the header pins are packed for the RP2350-PiZero, they arrived in perfect condition without any bent pins, which has been a persistent issue with other competitors. This attention to packaging detail really stands out.
I also received the latest A4 revision of the RP2350, which shows you maintain current inventory, that's really valuable for customers who want the most up to date components.
The delivery was quick and hassle free throughout. I'll definitely be recommending you to others!
App feedback: The discounts offered through the app are a nice bonus, but the component search function could be improved to match the ease of use on the website version. The rest of the app functions work well.
{"id":10021294997821,"title":"51M30-01-1-09N","handle":"51m30-01-1-09n","description":"\u003ch3\u003eGRAYHILL GH Part Number: 51M30-01-1-09N - Rotary Switch 9-Position, 150mA, 115V\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the reliable and versatile \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e rotary switch, designed for precision control in various industrial and commercial environments. This high-quality switch features a 9-position rotary configuration, suitable for complex switching requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51M30-01-1-09N\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 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 BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-09n.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\u003e9-position rotary switch with a 150mA current rating\u003c\/li\u003e\n\u003cli\u003e115V electrical rating suitable for various control circuits\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally responsible manufacturing\u003c\/li\u003e\n\u003cli\u003eCompact design with a 0.5\" diameter for space-constrained applications\u003c\/li\u003e\n\u003cli\u003eAvailable with optional sealing for PC board assembly and cleaning\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eMultiple angle throws: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles per deck, with multiple positions per switch (up to 16)\u003c\/li\u003e\n\u003cli\u003eTerminations available: PC or solder lug\u003c\/li\u003e\n\u003cli\u003eMilitary qualified options available, conforming to MIL‑S‑3786\/20 and MIL‑S‑3786\/35 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\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\u003e0.500 ± 0.015 inches (12.70 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003e0.562 ± 0.015 inches (14.27 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e0.658 ± 0.015 inches (16.71 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e0.234 ± 0.015 inches (5.94 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE (for 22.5°)\u003c\/td\u003e\n\u003ctd\u003e0.153 ± 0.015 inches (3.89 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical Ratings \u0026amp; Durability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLife expectancy: 25,000 cycles at specified loads and conditions\u003c\/li\u003e\n\u003cli\u003eContact resistance: 20 milliohms maximum (initial 10 milliohms)\u003c\/li\u003e\n\u003cli\u003eInsulation resistance: 1,000 Mohms minimum\u003c\/li\u003e\n\u003cli\u003eVoltage breakdown: 600 Vac minimum\u003c\/li\u003e\n\u003cli\u003eContact carry rating: 6 amperes continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterials \u0026amp; Finishes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch base: Thermoset\u003c\/li\u003e\n\u003cli\u003eRotor: Nylon with gold-plated contact alloy\u003c\/li\u003e\n\u003cli\u003eShaft, stop blades, and stop arm: Stainless steel\u003c\/li\u003e\n\u003cli\u003eDetent balls: Steel, nickel-plated\u003c\/li\u003e\n\u003cli\u003eBushing: Zinc, tin-zinc plated\u003c\/li\u003e\n\u003cli\u003eTerminals: Brass, gold- and nickel-plated over silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounting hardware includes a brass nut and internal tooth lockwasher\u003c\/li\u003e\n\u003cli\u003eMaximum mounting torque: 15 in-lbs\u003c\/li\u003e\n\u003cli\u003eProcess sealed (Style T) versions available for PC board mounting with wave soldering compatibility\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available for demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-09n.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. Please note that the datasheet was not processed; search the internet for the part number for additional details.\u003c\/p\u003e","published_at":"2025-08-12T14:40:28+05:30","created_at":"2025-08-12T14:40:28+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["115V","GRAYH","IMPORT_CSV","Rotary","Switch","WLDM"],"price":329569,"price_min":329569,"price_max":329569,"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":50612056654141,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"51M30-01-1-09N","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"51M30-01-1-09N","public_title":null,"options":["Default Title"],"price":329569,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"51M30-01-1-09N","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-09N_11451075_9c9b55fb.jpg?v=1754989832"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-09N_11451075_9c9b55fb.jpg?v=1754989832","options":["Title"],"media":[{"alt":null,"id":45800836104509,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-09N_11451075_9c9b55fb.jpg?v=1754989832"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-09N_11451075_9c9b55fb.jpg?v=1754989832","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGRAYHILL GH Part Number: 51M30-01-1-09N - Rotary Switch 9-Position, 150mA, 115V\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the reliable and versatile \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e rotary switch, designed for precision control in various industrial and commercial environments. This high-quality switch features a 9-position rotary configuration, suitable for complex switching requirements.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51M30-01-1-09N\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 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 BLK\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDatasheet:\u003c\/strong\u003e \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-09n.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\u003e9-position rotary switch with a 150mA current rating\u003c\/li\u003e\n\u003cli\u003e115V electrical rating suitable for various control circuits\u003c\/li\u003e\n\u003cli\u003eRoHS compliant for environmentally responsible manufacturing\u003c\/li\u003e\n\u003cli\u003eCompact design with a 0.5\" diameter for space-constrained applications\u003c\/li\u003e\n\u003cli\u003eAvailable with optional sealing for PC board assembly and cleaning\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eMultiple angle throws: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles per deck, with multiple positions per switch (up to 16)\u003c\/li\u003e\n\u003cli\u003eTerminations available: PC or solder lug\u003c\/li\u003e\n\u003cli\u003eMilitary qualified options available, conforming to MIL‑S‑3786\/20 and MIL‑S‑3786\/35 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\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\u003e0.500 ± 0.015 inches (12.70 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003e0.562 ± 0.015 inches (14.27 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eB (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e0.658 ± 0.015 inches (16.71 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e0.234 ± 0.015 inches (5.94 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE (for 22.5°)\u003c\/td\u003e\n\u003ctd\u003e0.153 ± 0.015 inches (3.89 ± 0.38 mm)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eElectrical Ratings \u0026amp; Durability\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLife expectancy: 25,000 cycles at specified loads and conditions\u003c\/li\u003e\n\u003cli\u003eContact resistance: 20 milliohms maximum (initial 10 milliohms)\u003c\/li\u003e\n\u003cli\u003eInsulation resistance: 1,000 Mohms minimum\u003c\/li\u003e\n\u003cli\u003eVoltage breakdown: 600 Vac minimum\u003c\/li\u003e\n\u003cli\u003eContact carry rating: 6 amperes continuous\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eMaterials \u0026amp; Finishes\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eSwitch base: Thermoset\u003c\/li\u003e\n\u003cli\u003eRotor: Nylon with gold-plated contact alloy\u003c\/li\u003e\n\u003cli\u003eShaft, stop blades, and stop arm: Stainless steel\u003c\/li\u003e\n\u003cli\u003eDetent balls: Steel, nickel-plated\u003c\/li\u003e\n\u003cli\u003eBushing: Zinc, tin-zinc plated\u003c\/li\u003e\n\u003cli\u003eTerminals: Brass, gold- and nickel-plated over silver\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eMounting hardware includes a brass nut and internal tooth lockwasher\u003c\/li\u003e\n\u003cli\u003eMaximum mounting torque: 15 in-lbs\u003c\/li\u003e\n\u003cli\u003eProcess sealed (Style T) versions available for PC board mounting with wave soldering compatibility\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available for demanding environments\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-09n.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e. Please note that the datasheet was not processed; search the internet for the part number for additional details.\u003c\/p\u003e"}
