Manufactured by Grayhill, Inc., the 50YY50491 rotary switch is a high-quality electronic component designed for versatile switching applications. This US-made switch complies with RoHS standards and features a robust construction suitable for demanding environments.
Product Features:
Single deck rotary switch with up to 4 poles on one deck
Multiple angle of throw options: 22.5°, 30°, 36°, 45°, 60°, and 90°
Compact 0.5" diameter design for space-efficient applications
Optional complete seal for PCB assembly and cleaning
Choice of terminal types: PC or solder lug termination
Positive shaft grounding for EMI/RFI shielding
Up to 16 positions per switch, with multiple circuit configurations
Military-qualified versions available, compliant with MIL‑S‑3786/20 and MIL‑S‑3786/35 standards
Electrical Ratings:
Load Type
At 85°C (atmospheric pressure)
At 25°C (reduced pressure)
Resistive, 28 Vdc
200 mA
200 mA
Resistive, 115 Vac
150 mA
150 mA
Inductive, 28 Vdc
30 mA
75 mA
Lamp load, 28 Vdc
100 mA
-
Lamp load, 220 Vac
75 mA
-
Contact resistance is a maximum of 20 milliohms initially, with an expected life expectancy of 25,000 cycles under specified conditions. The switch can carry up to 6 amperes continuously with a maximum contact temperature rise of 20°C.
{"id":10028073058621,"title":"50YY50491","handle":"50yy50491","description":"\u003ch3\u003eGrayhill Rotary Switch | Part Number: 50YY50491\u003c\/h3\u003e\n\u003cp\u003eManufactured by Grayhill, Inc., the 50YY50491 rotary switch is a high-quality electronic component designed for versatile switching applications. This US-made switch complies with RoHS standards and features a robust construction suitable for demanding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSingle deck rotary switch with up to 4 poles on one deck\u003c\/li\u003e\n \u003cli\u003eMultiple angle of throw options: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n \u003cli\u003eCompact 0.5\" diameter design for space-efficient applications\u003c\/li\u003e\n \u003cli\u003eOptional complete seal for PCB assembly and cleaning\u003c\/li\u003e\n \u003cli\u003eChoice of terminal types: PC or solder lug termination\u003c\/li\u003e\n \u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n \u003cli\u003eUp to 16 positions per switch, with multiple circuit configurations\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\u003cp\u003e\u003cstrong\u003eElectrical Ratings:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eLoad Type\u003c\/th\u003e\n \u003cth\u003eAt 85°C (atmospheric pressure)\u003c\/th\u003e\n \u003cth\u003eAt 25°C (reduced pressure)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResistive, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e200 mA\u003c\/td\u003e\n \u003ctd\u003e200 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResistive, 115 Vac\u003c\/td\u003e\n \u003ctd\u003e150 mA\u003c\/td\u003e\n \u003ctd\u003e150 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInductive, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e30 mA\u003c\/td\u003e\n \u003ctd\u003e75 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLamp load, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e100 mA\u003c\/td\u003e\n \u003ctd\u003e-\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLamp load, 220 Vac\u003c\/td\u003e\n \u003ctd\u003e75 mA\u003c\/td\u003e\n \u003ctd\u003e-\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eContact resistance is a maximum of 20 milliohms initially, with an expected life expectancy of 25,000 cycles under specified conditions. The switch can carry up to 6 amperes continuously with a maximum contact temperature rise of 20°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials and Finishes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSwitch Base: Thermoset\u003c\/li\u003e\n \u003cli\u003eDetent Rotor: Nylon\u003c\/li\u003e\n \u003cli\u003eShaft, Stop Blades, Stop Arm, Thrust Washer, and Retaining Ring: 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‑Plated over Silver Plate\u003c\/li\u003e\n \u003cli\u003eRotor Contact: Gold‑Plated, Precious Metal Alloy\u003c\/li\u003e\n \u003cli\u003ePanel Seal: Silicone Rubber\u003c\/li\u003e\n \u003cli\u003eShaft Seal: Fluorosilicone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eContact type: Shorting or non‑shorting wiping contacts\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -40°C to +85°C (standard), -65°C to +85°C (military qualified)\u003c\/li\u003e\n \u003cli\u003eMaximum mounting torque: 15 in-lbs\u003c\/li\u003e\n \u003cli\u003eMounting hardware includes a brass nut and lockwasher\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor detailed specifications, circuit diagrams, and mounting options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-GH\/50YY50491.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Specifications are subject to change. Please consult the current datasheet on \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-GH\/50YY50491.pdf\" target=\"_blank\"\u003ewww.grayhill.com\u003c\/a\u003e for the most current information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Metadata:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 50YY50491\u003c\/li\u003e\n \u003cli\u003eManufacturer: Grayhill\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: US\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Not specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDatasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e","published_at":"2025-08-16T06:42:48+05:30","created_at":"2025-08-16T06:42:49+05:30","vendor":"Waldom Electonics","type":"","tags":["GRAYH","IMPORT_CSV","IMPORT_PT2","Switch","WLDM"],"price":715961,"price_min":715961,"price_max":715961,"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":50626559836477,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"50YY50491","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"50YY50491","public_title":null,"options":["Default Title"],"price":715961,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"50YY50491","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/50YY50491_Series_2050_7543f2dd.jpg?v=1755306772"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50YY50491_Series_2050_7543f2dd.jpg?v=1755306772","options":["Title"],"media":[{"alt":null,"id":45863797358909,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50YY50491_Series_2050_7543f2dd.jpg?v=1755306772"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/50YY50491_Series_2050_7543f2dd.jpg?v=1755306772","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eGrayhill Rotary Switch | Part Number: 50YY50491\u003c\/h3\u003e\n\u003cp\u003eManufactured by Grayhill, Inc., the 50YY50491 rotary switch is a high-quality electronic component designed for versatile switching applications. This US-made switch complies with RoHS standards and features a robust construction suitable for demanding environments.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSingle deck rotary switch with up to 4 poles on one deck\u003c\/li\u003e\n \u003cli\u003eMultiple angle of throw options: 22.5°, 30°, 36°, 45°, 60°, and 90°\u003c\/li\u003e\n \u003cli\u003eCompact 0.5\" diameter design for space-efficient applications\u003c\/li\u003e\n \u003cli\u003eOptional complete seal for PCB assembly and cleaning\u003c\/li\u003e\n \u003cli\u003eChoice of terminal types: PC or solder lug termination\u003c\/li\u003e\n \u003cli\u003ePositive shaft grounding for EMI\/RFI shielding\u003c\/li\u003e\n \u003cli\u003eUp to 16 positions per switch, with multiple circuit configurations\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\u003cp\u003e\u003cstrong\u003eElectrical Ratings:\u003c\/strong\u003e\u003c\/p\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003eLoad Type\u003c\/th\u003e\n \u003cth\u003eAt 85°C (atmospheric pressure)\u003c\/th\u003e\n \u003cth\u003eAt 25°C (reduced pressure)\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResistive, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e200 mA\u003c\/td\u003e\n \u003ctd\u003e200 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eResistive, 115 Vac\u003c\/td\u003e\n \u003ctd\u003e150 mA\u003c\/td\u003e\n \u003ctd\u003e150 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eInductive, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e30 mA\u003c\/td\u003e\n \u003ctd\u003e75 mA\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLamp load, 28 Vdc\u003c\/td\u003e\n \u003ctd\u003e100 mA\u003c\/td\u003e\n \u003ctd\u003e-\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eLamp load, 220 Vac\u003c\/td\u003e\n \u003ctd\u003e75 mA\u003c\/td\u003e\n \u003ctd\u003e-\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\u003cp\u003eContact resistance is a maximum of 20 milliohms initially, with an expected life expectancy of 25,000 cycles under specified conditions. The switch can carry up to 6 amperes continuously with a maximum contact temperature rise of 20°C.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMaterials and Finishes:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eSwitch Base: Thermoset\u003c\/li\u003e\n \u003cli\u003eDetent Rotor: Nylon\u003c\/li\u003e\n \u003cli\u003eShaft, Stop Blades, Stop Arm, Thrust Washer, and Retaining Ring: 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‑Plated over Silver Plate\u003c\/li\u003e\n \u003cli\u003eRotor Contact: Gold‑Plated, Precious Metal Alloy\u003c\/li\u003e\n \u003cli\u003ePanel Seal: Silicone Rubber\u003c\/li\u003e\n \u003cli\u003eShaft Seal: Fluorosilicone\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eAdditional Characteristics:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003eContact type: Shorting or non‑shorting wiping contacts\u003c\/li\u003e\n \u003cli\u003eOperating temperature range: -40°C to +85°C (standard), -65°C to +85°C (military qualified)\u003c\/li\u003e\n \u003cli\u003eMaximum mounting torque: 15 in-lbs\u003c\/li\u003e\n \u003cli\u003eMounting hardware includes a brass nut and lockwasher\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eFor detailed specifications, circuit diagrams, and mounting options, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-GH\/50YY50491.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e Specifications are subject to change. Please consult the current datasheet on \u003ca href=\"https:\/\/www.waldomapac.com\/productfiles\/mf-GH\/50YY50491.pdf\" target=\"_blank\"\u003ewww.grayhill.com\u003c\/a\u003e for the most current information.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Metadata:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 50YY50491\u003c\/li\u003e\n \u003cli\u003eManufacturer: Grayhill\u003c\/li\u003e\n \u003cli\u003eCountry of Origin: US\u003c\/li\u003e\n \u003cli\u003eUOM: EA\u003c\/li\u003e\n \u003cli\u003eECCN: EAR99\u003c\/li\u003e\n \u003cli\u003ePackage Type: Not specified\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cem\u003eDatasheet was not processed; please search the internet for the part number for more details.\u003c\/em\u003e\u003c\/p\u003e\u003cbr\u003e"}
