CRAUZET CONTROLS HT81-2 Temperature Monitoring Relay (Part Number: 84874120)
The CROUZET CONTROLS HT81-2 is a high-performance temperature monitoring relay designed for precise thermal management in industrial applications. This controller is suitable for DIN rail mounting within a 35 mm enclosure, offering reliable temperature oversight with PT100 sensor compatibility.
Product Features
Temperature monitoring based on PT100 sensor input
Dual threshold settings: high and low temperature limits
Adjustable threshold crossing delay (Tt) on the front face
Output relays open or close depending on temperature thresholds
Yellow LEDs indicate relay status and threshold crossing
Flashing LEDs signal threshold exceedance or wiring faults
Instantaneous relay closure when temperature returns within thresholds
Built-in hysteresis for stable operation
Includes a removable, sealable cover for secure installation
Technical Specifications
Part Number
84874120
Manufacturer
CROUZET CONTROLS
Country of Origin (COO)
ID (Indonesia)
Unit of Measure (UOM)
EA (Each)
ECCN
EAR99
Package Type
BOX
Product Category
Controllers | Temperature Controllers
Additional Details
RoHS Compliant: Yes
Designed for DIN rail mounting (35 mm)
Fusible ultra-rapid 1 A or circuit breaker protection
Datasheet & Resources
For detailed technical specifications, wiring diagrams, and installation instructions, please refer to the datasheet.
Note: The datasheet was not processed; please search the internet for the part number 84874120 for more detailed information.
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{"id":10016178241853,"title":"84874120","handle":"84874120","description":"\u003ch3\u003eCRAUZET CONTROLS HT81-2 Temperature Monitoring Relay (Part Number: 84874120)\u003c\/h3\u003e\n\n\u003cp\u003eThe CROUZET CONTROLS HT81-2 is a high-performance temperature monitoring relay designed for precise thermal management in industrial applications. This controller is suitable for DIN rail mounting within a 35 mm enclosure, offering reliable temperature oversight with PT100 sensor compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTemperature monitoring based on PT100 sensor input\u003c\/li\u003e\n \u003cli\u003eDual threshold settings: high and low temperature limits\u003c\/li\u003e\n \u003cli\u003eAdjustable threshold crossing delay (Tt) on the front face\u003c\/li\u003e\n \u003cli\u003eOutput relays open or close depending on temperature thresholds\u003c\/li\u003e\n \u003cli\u003eYellow LEDs indicate relay status and threshold crossing\u003c\/li\u003e\n \u003cli\u003eFlashing LEDs signal threshold exceedance or wiring faults\u003c\/li\u003e\n \u003cli\u003eInstantaneous relay closure when temperature returns within thresholds\u003c\/li\u003e\n \u003cli\u003eBuilt-in hysteresis for stable operation\u003c\/li\u003e\n \u003cli\u003eIncludes a removable, sealable cover for secure installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003ctd\u003e84874120\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eManufacturer\u003c\/th\u003e\n \u003ctd\u003eCROUZET CONTROLS\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCountry of Origin (COO)\u003c\/th\u003e\n \u003ctd\u003eID (Indonesia)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eUnit of Measure (UOM)\u003c\/th\u003e\n \u003ctd\u003eEA (Each)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eECCN\u003c\/th\u003e\n \u003ctd\u003eEAR99\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePackage Type\u003c\/th\u003e\n \u003ctd\u003eBOX\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Category\u003c\/h3\u003e\n\u003cp\u003eControllers | Temperature Controllers\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDesigned for DIN rail mounting (35 mm)\u003c\/li\u003e\n \u003cli\u003eFusible ultra-rapid 1 A or circuit breaker protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDatasheet \u0026amp; Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed technical specifications, wiring diagrams, and installation instructions, please refer to the \u003ca href=\"https:\/\/media.crouzet.com\/datasheets\/english\/monitoring-relays-temperature-control-according-to-en81-lift-din-rail-mount-35-mm-ht81-2-Part%20number-84874120.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed; please search the internet for the part number 84874120 for more detailed information.\u003c\/em\u003e\u003c\/p\u003e","published_at":"2025-08-11T05:39:58+05:30","created_at":"2025-08-11T05:39:58+05:30","vendor":"Waldom Electonics","type":"Controllers","tags":["Controllers","CROUZ","HT81","IMPORT_CSV","Relay","Temperature","WLDM"],"price":3270748,"price_min":3270748,"price_max":3270748,"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":50590974738749,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"84874120","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"84874120","public_title":null,"options":["Default Title"],"price":3270748,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"84874120","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/84874120_47290874_69c0bce7.jpg?v=1754871002"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/84874120_47290874_69c0bce7.jpg?v=1754871002","options":["Title"],"media":[{"alt":null,"id":45772724863293,"position":1,"preview_image":{"aspect_ratio":1.25,"height":200,"width":250,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/84874120_47290874_69c0bce7.jpg?v=1754871002"},"aspect_ratio":1.25,"height":200,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/84874120_47290874_69c0bce7.jpg?v=1754871002","width":250}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003eCRAUZET CONTROLS HT81-2 Temperature Monitoring Relay (Part Number: 84874120)\u003c\/h3\u003e\n\n\u003cp\u003eThe CROUZET CONTROLS HT81-2 is a high-performance temperature monitoring relay designed for precise thermal management in industrial applications. This controller is suitable for DIN rail mounting within a 35 mm enclosure, offering reliable temperature oversight with PT100 sensor compatibility.\u003c\/p\u003e\n\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eTemperature monitoring based on PT100 sensor input\u003c\/li\u003e\n \u003cli\u003eDual threshold settings: high and low temperature limits\u003c\/li\u003e\n \u003cli\u003eAdjustable threshold crossing delay (Tt) on the front face\u003c\/li\u003e\n \u003cli\u003eOutput relays open or close depending on temperature thresholds\u003c\/li\u003e\n \u003cli\u003eYellow LEDs indicate relay status and threshold crossing\u003c\/li\u003e\n \u003cli\u003eFlashing LEDs signal threshold exceedance or wiring faults\u003c\/li\u003e\n \u003cli\u003eInstantaneous relay closure when temperature returns within thresholds\u003c\/li\u003e\n \u003cli\u003eBuilt-in hysteresis for stable operation\u003c\/li\u003e\n \u003cli\u003eIncludes a removable, sealable cover for secure installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\u003e\n \u003ctr\u003e\n \u003cth\u003ePart Number\u003c\/th\u003e\n \u003ctd\u003e84874120\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eManufacturer\u003c\/th\u003e\n \u003ctd\u003eCROUZET CONTROLS\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eCountry of Origin (COO)\u003c\/th\u003e\n \u003ctd\u003eID (Indonesia)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eUnit of Measure (UOM)\u003c\/th\u003e\n \u003ctd\u003eEA (Each)\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003eECCN\u003c\/th\u003e\n \u003ctd\u003eEAR99\u003c\/td\u003e\n \u003c\/tr\u003e\n \u003ctr\u003e\n \u003cth\u003ePackage Type\u003c\/th\u003e\n \u003ctd\u003eBOX\u003c\/td\u003e\n \u003c\/tr\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eProduct Category\u003c\/h3\u003e\n\u003cp\u003eControllers | Temperature Controllers\u003c\/p\u003e\n\n\u003ch3\u003eAdditional Details\u003c\/h3\u003e\n\u003cul\u003e\n \u003cli\u003eRoHS Compliant: Yes\u003c\/li\u003e\n \u003cli\u003eDesigned for DIN rail mounting (35 mm)\u003c\/li\u003e\n \u003cli\u003eFusible ultra-rapid 1 A or circuit breaker protection\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eDatasheet \u0026amp; Resources\u003c\/h3\u003e\n\u003cp\u003eFor detailed technical specifications, wiring diagrams, and installation instructions, please refer to the \u003ca href=\"https:\/\/media.crouzet.com\/datasheets\/english\/monitoring-relays-temperature-control-according-to-en81-lift-din-rail-mount-35-mm-ht81-2-Part%20number-84874120.pdf\" target=\"_blank\"\u003edatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cem\u003eNote: The datasheet was not processed; please search the internet for the part number 84874120 for more detailed information.\u003c\/em\u003e\u003c\/p\u003e"}
