HONEYWELL Basic/Snap Action Switches SEALED SE (Part Number: 21EN51-R4)
Upgrade your control systems with the reliable and durable HONEYWELL Basic/Snap Action Switches SEALED SE. Designed for environments requiring sealed and robust switching solutions, this switch offers high performance and long life in demanding applications.
Product Features
Environment-proof seal compliant with Symbol 4 and MIL-S-8805 standards
Qualified to MIL-S-8805 for military-grade reliability
Wide temperature range: –65 °F to +185 °F (–54 °C to +85 °C)
High temperature ratings up to +257 °F (–54 °C to +125 °C)
Sealed design ensures moisture and dust resistance
Suitable for various actuation methods including plunger, roller, and rotary linkages
Multiple electrical ratings for DC and AC applications
Electrical Specifications
DC Ratings (Amps)
Voltage
Inrush
Motor
Resistive
Inductive
At 50,000 ft
Rating Code A
28 VDC
24 V
4 A
4 A
2 A
24 VDC, 43/41 A
Rating Code B
28 VDC
36 V
6 A
10 A
3 A
36 VDC, 63/10 A
Rating Code C
28 VDC
30 V
5 A
15 A
10 A
30 VDC, 53/15 A
Additional Electrical Ratings
AC Ratings (Amps)
Voltage
Make/Break
Rating Code A&D
125/460 VAC @ 60 Hz
24/4/5/3 A
Rating Code B
125/250 VAC @ 60 Hz
20/3/5/5 A
Mechanical and Mounting Details
Terminations generally include six-foot leadwires of specified gauge and military standards
Mount through 5/8 inch or 15/32 inch diameter holes with lock washers and mounting nuts
Actuators include plunger, roller, rotary linkage, and roller lever types
Ice scraper rings are incorporated for actuator cleaning during operation
Note: For detailed specifications and application guidance, please refer to the provided datasheet or contact Honeywell directly. Datasheet was not processed; please search the internet for the part number for more details.
{"id":10026384228669,"title":"21EN51-R4","handle":"21en51-r4","description":"\u003ch3\u003eHONEYWELL Basic\/Snap Action Switches SEALED SE (Part Number: 21EN51-R4)\u003c\/h3\u003e\n\u003cp\u003eUpgrade your control systems with the reliable and durable \u003cstrong\u003eHONEYWELL Basic\/Snap Action Switches SEALED SE\u003c\/strong\u003e. Designed for environments requiring sealed and robust switching solutions, this switch offers high performance and long life in demanding applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEnvironment-proof seal compliant with Symbol 4 and MIL-S-8805 standards\u003c\/li\u003e\n \u003cli\u003eQualified to MIL-S-8805 for military-grade reliability\u003c\/li\u003e\n \u003cli\u003eWide temperature range: –65 °F to +185 °F (–54 °C to +85 °C)\u003c\/li\u003e\n \u003cli\u003eHigh temperature ratings up to +257 °F (–54 °C to +125 °C)\u003c\/li\u003e\n \u003cli\u003eSealed design ensures moisture and dust resistance\u003c\/li\u003e\n \u003cli\u003eSuitable for various actuation methods including plunger, roller, and rotary linkages\u003c\/li\u003e\n \u003cli\u003eMultiple electrical ratings for DC and AC applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eDC Ratings (Amps)\u003c\/th\u003e\n \u003cth\u003eVoltage\u003c\/th\u003e\n \u003cth\u003eInrush\u003c\/th\u003e\n \u003cth\u003eMotor\u003c\/th\u003e\n \u003cth\u003eResistive\u003c\/th\u003e\n \u003cth\u003eInductive\u003c\/th\u003e\n \u003cth\u003eAt 50,000 ft\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code A\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e24 V\u003c\/td\u003e\n \u003ctd\u003e4 A\u003c\/td\u003e\n \u003ctd\u003e4 A\u003c\/td\u003e\n \u003ctd\u003e2 A\u003c\/td\u003e\n \u003ctd\u003e24 VDC, 43\/41 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code B\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e36 V\u003c\/td\u003e\n \u003ctd\u003e6 A\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003ctd\u003e3 A\u003c\/td\u003e\n \u003ctd\u003e36 VDC, 63\/10 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code C\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e30 V\u003c\/td\u003e\n \u003ctd\u003e5 A\u003c\/td\u003e\n \u003ctd\u003e15 A\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003ctd\u003e30 VDC, 53\/15 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Electrical Ratings\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eAC Ratings (Amps)\u003c\/th\u003e\n \u003cth\u003eVoltage\u003c\/th\u003e\n \u003cth\u003eMake\/Break\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code A\u0026amp;D\u003c\/td\u003e\n \u003ctd\u003e125\/460 VAC @ 60 Hz\u003c\/td\u003e\n \u003ctd\u003e24\/4\/5\/3 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code B\u003c\/td\u003e\n \u003ctd\u003e125\/250 VAC @ 60 Hz\u003c\/td\u003e\n \u003ctd\u003e20\/3\/5\/5 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical and Mounting Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTerminations generally include six-foot leadwires of specified gauge and military standards\u003c\/li\u003e\n \u003cli\u003eMount through 5\/8 inch or 15\/32 inch diameter holes with lock washers and mounting nuts\u003c\/li\u003e\n \u003cli\u003eActuators include plunger, roller, rotary linkage, and roller lever types\u003c\/li\u003e\n \u003cli\u003eIce scraper rings are incorporated for actuator cleaning during operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 21EN51-R4\u003c\/li\u003e\n \u003cli\u003eManufacturer: HONEYWELL\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: Standard\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/prod-edam.honeywell.com\/content\/dam\/honeywell-edam\/sps\/siot\/en-us\/products\/switches\/sealed-switches\/en-series\/documents\/sps-siot-376-ciid-48722.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For detailed specifications and application guidance, please refer to the provided datasheet or contact Honeywell directly. Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e","published_at":"2025-08-15T07:24:39+05:30","created_at":"2025-08-15T07:24:40+05:30","vendor":"Waldom Electonics","type":"Switches","tags":["HWLL","IMPORT_CSV","IMPORT_PT2","LED","SE","Snap","Switch","WLDM"],"price":5367491,"price_min":5367491,"price_max":5367491,"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":50622183735613,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"21EN51-R4","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"21EN51-R4","public_title":null,"options":["Default Title"],"price":5367491,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"21EN51-R4","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/45026251.png?v=1755222880"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/45026251.png?v=1755222880","options":["Title"],"media":[{"alt":null,"id":45847582277949,"position":1,"preview_image":{"aspect_ratio":1.0,"height":200,"width":200,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/45026251.png?v=1755222880"},"aspect_ratio":1.0,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/45026251.png?v=1755222880","width":200}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eHONEYWELL Basic\/Snap Action Switches SEALED SE (Part Number: 21EN51-R4)\u003c\/h3\u003e\n\u003cp\u003eUpgrade your control systems with the reliable and durable \u003cstrong\u003eHONEYWELL Basic\/Snap Action Switches SEALED SE\u003c\/strong\u003e. Designed for environments requiring sealed and robust switching solutions, this switch offers high performance and long life in demanding applications.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eEnvironment-proof seal compliant with Symbol 4 and MIL-S-8805 standards\u003c\/li\u003e\n \u003cli\u003eQualified to MIL-S-8805 for military-grade reliability\u003c\/li\u003e\n \u003cli\u003eWide temperature range: –65 °F to +185 °F (–54 °C to +85 °C)\u003c\/li\u003e\n \u003cli\u003eHigh temperature ratings up to +257 °F (–54 °C to +125 °C)\u003c\/li\u003e\n \u003cli\u003eSealed design ensures moisture and dust resistance\u003c\/li\u003e\n \u003cli\u003eSuitable for various actuation methods including plunger, roller, and rotary linkages\u003c\/li\u003e\n \u003cli\u003eMultiple electrical ratings for DC and AC applications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eElectrical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eDC Ratings (Amps)\u003c\/th\u003e\n \u003cth\u003eVoltage\u003c\/th\u003e\n \u003cth\u003eInrush\u003c\/th\u003e\n \u003cth\u003eMotor\u003c\/th\u003e\n \u003cth\u003eResistive\u003c\/th\u003e\n \u003cth\u003eInductive\u003c\/th\u003e\n \u003cth\u003eAt 50,000 ft\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code A\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e24 V\u003c\/td\u003e\n \u003ctd\u003e4 A\u003c\/td\u003e\n \u003ctd\u003e4 A\u003c\/td\u003e\n \u003ctd\u003e2 A\u003c\/td\u003e\n \u003ctd\u003e24 VDC, 43\/41 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code B\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e36 V\u003c\/td\u003e\n \u003ctd\u003e6 A\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003ctd\u003e3 A\u003c\/td\u003e\n \u003ctd\u003e36 VDC, 63\/10 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code C\u003c\/td\u003e\n \u003ctd\u003e28 VDC\u003c\/td\u003e\n \u003ctd\u003e30 V\u003c\/td\u003e\n \u003ctd\u003e5 A\u003c\/td\u003e\n \u003ctd\u003e15 A\u003c\/td\u003e\n \u003ctd\u003e10 A\u003c\/td\u003e\n \u003ctd\u003e30 VDC, 53\/15 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eAdditional Electrical Ratings\u003c\/h3\u003e\n\u003ctable\u003e\n \u003cthead\u003e\n \u003ctr\u003e\n \u003cth\u003eAC Ratings (Amps)\u003c\/th\u003e\n \u003cth\u003eVoltage\u003c\/th\u003e\n \u003cth\u003eMake\/Break\u003c\/th\u003e\n \u003c\/tr\u003e\n \u003c\/thead\u003e\n \u003ctbody\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code A\u0026amp;D\u003c\/td\u003e\n \u003ctd\u003e125\/460 VAC @ 60 Hz\u003c\/td\u003e\n \u003ctd\u003e24\/4\/5\/3 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003ctd\u003eRating Code B\u003c\/td\u003e\n \u003ctd\u003e125\/250 VAC @ 60 Hz\u003c\/td\u003e\n \u003ctd\u003e20\/3\/5\/5 A\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch3\u003eMechanical and Mounting Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTerminations generally include six-foot leadwires of specified gauge and military standards\u003c\/li\u003e\n \u003cli\u003eMount through 5\/8 inch or 15\/32 inch diameter holes with lock washers and mounting nuts\u003c\/li\u003e\n \u003cli\u003eActuators include plunger, roller, rotary linkage, and roller lever types\u003c\/li\u003e\n \u003cli\u003eIce scraper rings are incorporated for actuator cleaning during operation\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eOrdering Information\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003ePart Number: 21EN51-R4\u003c\/li\u003e\n \u003cli\u003eManufacturer: HONEYWELL\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: Standard\u003c\/li\u003e\n \u003cli\u003eDatasheet: \u003ca href=\"https:\/\/prod-edam.honeywell.com\/content\/dam\/honeywell-edam\/sps\/siot\/en-us\/products\/switches\/sealed-switches\/en-series\/documents\/sps-siot-376-ciid-48722.pdf\" target=\"_blank\"\u003eDownload Datasheet\u003c\/a\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eNote:\u003c\/strong\u003e For detailed specifications and application guidance, please refer to the provided datasheet or contact Honeywell directly. Datasheet was not processed; please search the internet for the part number for more details.\u003c\/p\u003e"}
