PHOENIX CONTACT PH Part Number: 521990 - SLK 4-EX DIN Rail Terminal Blocks
Enhance your electrical installation with the high-quality DIN Rail Terminal Blocks SLK 4-EX manufactured by PHOENIX CONTACT. Designed for reliable and secure connections, these terminal blocks are ideal for industrial automation and control systems.
Product Features
Connection Method: Screw connection with M3 screw thread
Max Conductors with Same Cross Section (Solid/Stranded): 1 mm² / 1.5 mm²
Additional Information
For detailed specifications and installation instructions, please refer to the Datasheet.
Part Number: 521990 | Manufacturer: PHOENIX CONTACT | COO: DE | UOM: EA | ECCN: EAR99 | Package Type: Not specified
Note: Please observe the current carrying capacity of the DIN rails used with these terminal blocks.
Note: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.
{"id":10007596368189,"title":"521990","handle":"521990","description":"\u003ch3\u003ePHOENIX CONTACT PH Part Number: 521990 - SLK 4-EX DIN Rail Terminal Blocks\u003c\/h3\u003e\n\u003cp\u003eEnhance your electrical installation with the high-quality \u003cstrong\u003eDIN Rail Terminal Blocks SLK 4-EX\u003c\/strong\u003e manufactured by \u003cstrong\u003ePHOENIX CONTACT\u003c\/strong\u003e. Designed for reliable and secure connections, these terminal blocks are ideal for industrial automation and control systems.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConnection Method: Screw connection with M3 screw thread\u003c\/li\u003e\n\u003cli\u003eNumber of Connections: 2 per terminal block\u003c\/li\u003e\n\u003cli\u003eRated Cross Section: 0.2 mm² - 4 mm² (AWG 24 - 12)\u003c\/li\u003e\n\u003cli\u003eMaterial: Insulating PA with V0 flammability rating according to UL 94\u003c\/li\u003e\n\u003cli\u003eMounting Type: NS 32 DIN rail\u003c\/li\u003e\n\u003cli\u003eWidth: 7 mm; Length: 27 mm; Height: 33 mm (NS 32)\u003c\/li\u003e\n\u003cli\u003eRated Surge Voltage: 8 kV\u003c\/li\u003e\n\u003cli\u003eDegree of Pollution: 3; Overvoltage Category: III; Insulating Material Group: I\u003c\/li\u003e\n\u003cli\u003eOpen Side Panel: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\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\u003eNumber of Rows\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Connections\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Cross Section\u003c\/td\u003e\n\u003ctd\u003e4 mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulating Material\u003c\/td\u003e\n\u003ctd\u003ePA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlammability Rating\u003c\/td\u003e\n\u003ctd\u003eV0 (UL 94)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eNS 32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (WxHxL)\u003c\/td\u003e\n\u003ctd\u003e7 mm x 33 mm x 27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Surge Voltage\u003c\/td\u003e\n\u003ctd\u003e8 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Pollution\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage Category\u003c\/td\u003e\n\u003ctd\u003eIII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulating Material Group\u003c\/td\u003e\n\u003ctd\u003eI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnection Data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eScrew Connection: M3 screw thread\u003c\/li\u003e\n\u003cli\u003eStripping Length: 8 mm\u003c\/li\u003e\n\u003cli\u003eTightening Torque: 0.6 - 0.8 Nm\u003c\/li\u003e\n\u003cli\u003eConductor Cross Section (Solid\/Flexible): 0.2 mm² - 4 mm² (AWG 24 - 12)\u003c\/li\u003e\n\u003cli\u003eFlexible Conductors with Ferrule: 0.25 mm² - 4 mm² (without plastic sleeve); 0.25 mm² - 2.5 mm² (with plastic sleeve)\u003c\/li\u003e\n\u003cli\u003eMax Conductors with Same Cross Section (Solid\/Stranded): 1 mm² \/ 1.5 mm²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and installation instructions, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ph\/ph-521990.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003ePart Number: 521990 | Manufacturer: PHOENIX CONTACT | COO: DE | UOM: EA | ECCN: EAR99 | Package Type: Not specified\u003c\/p\u003e\n\u003cp\u003eNote: Please observe the current carrying capacity of the DIN rails used with these terminal blocks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e","published_at":"2025-08-07T14:32:04+05:30","created_at":"2025-08-07T14:32:04+05:30","vendor":"Waldom Electonics","type":"Terminals \u0026 Splices","tags":["DIN","PHXC","Rail","Splices","STD_IMG","Terminal","WLDM"],"price":107685,"price_min":107685,"price_max":107685,"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":50559267078461,"title":"Default Title","option1":"Default Title","option2":null,"option3":null,"sku":"521990","requires_shipping":true,"taxable":true,"featured_image":null,"available":true,"name":"521990","public_title":null,"options":["Default Title"],"price":107685,"weight":250,"compare_at_price":null,"inventory_management":"shopify","barcode":"521990","requires_selling_plan":false,"selling_plan_allocations":[]}],"images":["\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_60c64ac7-57db-4074-bbc0-bcb2dd705fc0.jpg?v=1754557324"],"featured_image":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_60c64ac7-57db-4074-bbc0-bcb2dd705fc0.jpg?v=1754557324","options":["Title"],"media":[{"alt":null,"id":45711628763453,"position":1,"preview_image":{"aspect_ratio":1.0,"height":1024,"width":1024,"src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_60c64ac7-57db-4074-bbc0-bcb2dd705fc0.jpg?v=1754557324"},"aspect_ratio":1.0,"height":1024,"media_type":"image","src":"\/\/thinkrobotics.com\/cdn\/shop\/files\/fbe811dc-181f-41c1-ab5a-dc3410446d1d_60c64ac7-57db-4074-bbc0-bcb2dd705fc0.jpg?v=1754557324","width":1024}],"requires_selling_plan":false,"selling_plan_groups":[],"content":"\u003ch3\u003ePHOENIX CONTACT PH Part Number: 521990 - SLK 4-EX DIN Rail Terminal Blocks\u003c\/h3\u003e\n\u003cp\u003eEnhance your electrical installation with the high-quality \u003cstrong\u003eDIN Rail Terminal Blocks SLK 4-EX\u003c\/strong\u003e manufactured by \u003cstrong\u003ePHOENIX CONTACT\u003c\/strong\u003e. Designed for reliable and secure connections, these terminal blocks are ideal for industrial automation and control systems.\u003c\/p\u003e\n\u003ch3\u003eProduct Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eConnection Method: Screw connection with M3 screw thread\u003c\/li\u003e\n\u003cli\u003eNumber of Connections: 2 per terminal block\u003c\/li\u003e\n\u003cli\u003eRated Cross Section: 0.2 mm² - 4 mm² (AWG 24 - 12)\u003c\/li\u003e\n\u003cli\u003eMaterial: Insulating PA with V0 flammability rating according to UL 94\u003c\/li\u003e\n\u003cli\u003eMounting Type: NS 32 DIN rail\u003c\/li\u003e\n\u003cli\u003eWidth: 7 mm; Length: 27 mm; Height: 33 mm (NS 32)\u003c\/li\u003e\n\u003cli\u003eRated Surge Voltage: 8 kV\u003c\/li\u003e\n\u003cli\u003eDegree of Pollution: 3; Overvoltage Category: III; Insulating Material Group: I\u003c\/li\u003e\n\u003cli\u003eOpen Side Panel: No\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\u003ctable\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\u003eNumber of Rows\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNumber of Connections\u003c\/td\u003e\n\u003ctd\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNominal Cross Section\u003c\/td\u003e\n\u003ctd\u003e4 mm²\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eColor\u003c\/td\u003e\n\u003ctd\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulating Material\u003c\/td\u003e\n\u003ctd\u003ePA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFlammability Rating\u003c\/td\u003e\n\u003ctd\u003eV0 (UL 94)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting Type\u003c\/td\u003e\n\u003ctd\u003eNS 32\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (WxHxL)\u003c\/td\u003e\n\u003ctd\u003e7 mm x 33 mm x 27 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Surge Voltage\u003c\/td\u003e\n\u003ctd\u003e8 kV\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Pollution\u003c\/td\u003e\n\u003ctd\u003e3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOvervoltage Category\u003c\/td\u003e\n\u003ctd\u003eIII\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInsulating Material Group\u003c\/td\u003e\n\u003ctd\u003eI\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch3\u003eConnection Data\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eScrew Connection: M3 screw thread\u003c\/li\u003e\n\u003cli\u003eStripping Length: 8 mm\u003c\/li\u003e\n\u003cli\u003eTightening Torque: 0.6 - 0.8 Nm\u003c\/li\u003e\n\u003cli\u003eConductor Cross Section (Solid\/Flexible): 0.2 mm² - 4 mm² (AWG 24 - 12)\u003c\/li\u003e\n\u003cli\u003eFlexible Conductors with Ferrule: 0.25 mm² - 4 mm² (without plastic sleeve); 0.25 mm² - 2.5 mm² (with plastic sleeve)\u003c\/li\u003e\n\u003cli\u003eMax Conductors with Same Cross Section (Solid\/Stranded): 1 mm² \/ 1.5 mm²\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eFor detailed specifications and installation instructions, please refer to the \u003ca href=\"https:\/\/www.waldomapac.com\/upload\/parts\/datasheets\/mf-ph\/ph-521990.pdf\" target=\"_blank\"\u003eDatasheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003ePart Number: 521990 | Manufacturer: PHOENIX CONTACT | COO: DE | UOM: EA | ECCN: EAR99 | Package Type: Not specified\u003c\/p\u003e\n\u003cp\u003eNote: Please observe the current carrying capacity of the DIN rails used with these terminal blocks.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eNote: The product image displayed is a standard reference image. Actual product appearance may vary. For the most accurate and up-to-date representation, we recommend searching the part number online.\u003c\/strong\u003e\u003c\/p\u003e"}
