Enhance your electronic applications with the durable and reliable GRAYHILL rotary switch, designed for precise control in various industrial and commercial environments. This switch features an 8-position rotary configuration, rated for 150mA at 115V, ensuring optimal performance and longevity.
8-position rotary switch with a 150mA, 115V electrical rating
Single deck design with a 0.5" diameter for compact installation
Optional sealing for PCB assembly and cleaning, including panel seal options
Choice of throw angles: 22.5°, 30°, 36°, 45°, 60°, and 90°
Up to 4 poles and 16 positions per switch for versatile circuit configurations
PC board or solder lug terminal options for flexible mounting
Positive shaft grounding for EMI/RFI shielding
Military qualified versions available, compliant with MIL‑S‑3786/20 and MIL‑S‑3786/35 standards
Electrical and Mechanical Specifications
Parameter
Details
Life Expectancy
25,000 cycles at specified load conditions
Contact Resistance
Maximum 20 milliohms (initial 10 milliohms)
Insulation Resistance
1,000 Mohms minimum
Voltage Breakdown
600 Vac minimum
Contact Force
Over 80 grams
Rotational Torque
8–24 oz-in
Stop Strength
Minimum 7.5 pound-inches
Shaft Seal
Fluorosilicone
Panel Seal
Silicone rubber
Materials
Base: Thermoset, Rotor: Nylon, Shaft: Stainless steel, Terminals: Brass with gold and nickel plating
Dimensions
Dimension
Series 50
Series 51
D
.500 ± .015 (12.70 ± 0.38 mm)
.562 ± .015 (14.27 ± 0.38 mm)
B (for 30°, 36°, 45°, 60°, 90°)
.658 ± .015 (16.71 ± 0.38 mm)
N/A
C (for 30°, 36°, 45°, 60°, 90°)
.234 ± .015 (5.94 ± 0.38 mm)
N/A
E (for 22.5°)
.153 ± .015 (3.89 ± 0.38 mm)
N/A
Additional Information
Designed for PCB or solder lug terminal mounting
Sealing options available for process sealed versions, including panel seal
Military qualified options available for demanding applications
Switches can be ordered with various shaft styles, including screwdriver slot, metric, and process sealed options
For more detailed specifications and application guidance, please refer to the full datasheet. Datasheet was not processed, please search the internet for the part number for more details.
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{"id":10021294965053,"title":"51M30-01-1-08N","handle":"51m30-01-1-08n","description":"\u003ch3\u003eGRAYHILL GH Part Number: 51M30-01-1-08N - Rotary Switch 8-Position, 115V, 150mA\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the durable and reliable \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e rotary switch, designed for precise control in various industrial and commercial environments. This switch features an 8-position rotary configuration, rated for 150mA at 115V, ensuring optimal performance and longevity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51M30-01-1-08N\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-51m30-01-1-08n.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\u003e8-position rotary switch with a 150mA, 115V electrical rating\u003c\/li\u003e\n\u003cli\u003eSingle deck design with a 0.5\" diameter for compact installation\u003c\/li\u003e\n\u003cli\u003eOptional sealing for PCB assembly and cleaning, including panel seal options\u003c\/li\u003e\n\u003cli\u003eChoice of throw angles: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch for versatile circuit configurations\u003c\/li\u003e\n\u003cli\u003ePC board or solder lug terminal options for flexible mounting\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available, compliant with MIL‑S‑3786\/20 and MIL‑S‑3786\/35 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Mechanical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" 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 load conditions\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\u003e1,000 Mohms minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Breakdown\u003c\/td\u003e\n\u003ctd\u003e600 Vac minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Force\u003c\/td\u003e\n\u003ctd\u003eOver 80 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotational Torque\u003c\/td\u003e\n\u003ctd\u003e8–24 oz-in\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\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: Stainless steel, Terminals: Brass with gold and nickel plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" 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 mm)\u003c\/td\u003e\n\u003ctd\u003e.562 ± .015 (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\u003e.658 ± .015 (16.71 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e.234 ± .015 (5.94 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE (for 22.5°)\u003c\/td\u003e\n\u003ctd\u003e.153 ± .015 (3.89 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for PCB or solder lug terminal mounting\u003c\/li\u003e\n\u003cli\u003eSealing options available for process sealed versions, including panel seal\u003c\/li\u003e\n\u003cli\u003eMilitary qualified options available for demanding applications\u003c\/li\u003e\n\u003cli\u003eSwitches can be ordered with various shaft styles, including screwdriver slot, metric, and process sealed options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-08n.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e. Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e","published_at":"2025-08-12T14:40:25+05:30","created_at":"2025-08-12T14:40:25+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["115V","GRAYH","IMPORT_CSV","Rotary","Switch","WLDM"],"price":302683,"price_min":302683,"price_max":302683,"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":50612056621373,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"51M30-01-1-08N","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"51M30-01-1-08N","public_title":null,"options":["Default Title"],"price":302683,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"51M30-01-1-08N","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-08N_11451073_b11675d7.jpg?v=1754989829"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-08N_11451073_b11675d7.jpg?v=1754989829","options":["Title"],"media":[{"alt":null,"id":45800835580221,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-08N_11451073_b11675d7.jpg?v=1754989829"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/51M30-01-1-08N_11451073_b11675d7.jpg?v=1754989829","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGRAYHILL GH Part Number: 51M30-01-1-08N - Rotary Switch 8-Position, 115V, 150mA\u003c\/h3\u003e\n\u003cp\u003eEnhance your electronic applications with the durable and reliable \u003cstrong\u003eGRAYHILL\u003c\/strong\u003e rotary switch, designed for precise control in various industrial and commercial environments. This switch features an 8-position rotary configuration, rated for 150mA at 115V, ensuring optimal performance and longevity.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 51M30-01-1-08N\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-51m30-01-1-08n.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\u003e8-position rotary switch with a 150mA, 115V electrical rating\u003c\/li\u003e\n\u003cli\u003eSingle deck design with a 0.5\" diameter for compact installation\u003c\/li\u003e\n\u003cli\u003eOptional sealing for PCB assembly and cleaning, including panel seal options\u003c\/li\u003e\n\u003cli\u003eChoice of throw angles: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n\u003cli\u003eUp to 4 poles and 16 positions per switch for versatile circuit configurations\u003c\/li\u003e\n\u003cli\u003ePC board or solder lug terminal options for flexible mounting\u003c\/li\u003e\n\u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n\u003cli\u003eMilitary qualified versions available, compliant with MIL‑S‑3786\/20 and MIL‑S‑3786\/35 standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical and Mechanical Specifications\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" 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 load conditions\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\u003e1,000 Mohms minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage Breakdown\u003c\/td\u003e\n\u003ctd\u003e600 Vac minimum\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Force\u003c\/td\u003e\n\u003ctd\u003eOver 80 grams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRotational Torque\u003c\/td\u003e\n\u003ctd\u003e8–24 oz-in\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\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: Stainless steel, Terminals: Brass with gold and nickel plating\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eDimensions\u003c\/h3\u003e\n\u003ctable border=\"1\" cellpadding=\"4\" 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 mm)\u003c\/td\u003e\n\u003ctd\u003e.562 ± .015 (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\u003e.658 ± .015 (16.71 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eC (for 30°, 36°, 45°, 60°, 90°)\u003c\/td\u003e\n\u003ctd\u003e.234 ± .015 (5.94 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eE (for 22.5°)\u003c\/td\u003e\n\u003ctd\u003e.153 ± .015 (3.89 ± 0.38 mm)\u003c\/td\u003e\n\u003ctd\u003eN\/A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for PCB or solder lug terminal mounting\u003c\/li\u003e\n\u003cli\u003eSealing options available for process sealed versions, including panel seal\u003c\/li\u003e\n\u003cli\u003eMilitary qualified options available for demanding applications\u003c\/li\u003e\n\u003cli\u003eSwitches can be ordered with various shaft styles, including screwdriver slot, metric, and process sealed options\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor more detailed specifications and application guidance, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-gh\/gh-51m30-01-1-08n.pdf\" target=\"_blank\"\u003efull datasheet\u003c\/a\u003e. Datasheet was not processed, please search the internet for the part number for more details.\u003c\/p\u003e"}
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.
