{"product_id":"allen-bradley-4983-ds277-404","title":"4983-DS277-404","description":"\u003ch2\u003eOverview of Allen Bradley 4983-DS277-404\u003c\/h2\u003e\nThe Allen Bradley 4983-DS277-404 is a surge suppressor designed for reliable protection of electrical equipment in industrial and commercial facilities. Manufactured by Allen-Bradley, this device is built to defend systems operating at 277\/480 VAC against damaging voltage spikes and transient surges. It utilizes advanced surge suppression technology and is suitable for 1- and 3-phase applications with a 4-pole design. Its standard duty rating and high surge current capacity (up to 40 kA) make it ideal for environments demanding continuous protection and operational safety. The compact footprint and DIN rail mounting facilitate quick integration into control panels or switchgear, streamlining installation and maintenance. UL 1449 compliance ensures adherence to recognized safety standards, while the device’s wide operating temperature range supports performance in challenging environments. Trusted across industries, Allen Bradley 4983-DS277-404 helps preserve equipment lifespan and uptime by significantly reducing the risk of surge-related failures.\n\n\u003ch2\u003eKey Features of Allen Bradley 4983-DS277-404\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eRated for 277\/480 VAC main systems\u003c\/li\u003e\n  \u003cli\u003eStandard duty 4-pole surge protection\u003c\/li\u003e\n  \u003cli\u003eMaximum surge current: 40 kA (10\/350 μs waveform)\u003c\/li\u003e\n  \u003cli\u003eDIN rail mounting for fast installation\u003c\/li\u003e\n  \u003cli\u003eStatus indication via front-facing LED\u003c\/li\u003e\n  \u003cli\u003eComplies with UL 1449 and major international standards\u003c\/li\u003e\n  \u003cli\u003eWide operational temperature range: -40°C to +80°C\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eTechnical Specs of 4983-DS277-404\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eNominal Voltage: 277\/480 VAC\u003c\/li\u003e\n  \u003cli\u003eNumber of Poles: 4\u003c\/li\u003e\n  \u003cli\u003eMaximum Discharge Current (Imax): 40 kA\u003c\/li\u003e\n  \u003cli\u003eOperating Frequency: 50\/60 Hz\u003c\/li\u003e\n  \u003cli\u003eEnclosure type: DIN rail mount, high-impact plastic\u003c\/li\u003e\n  \u003cli\u003eCertifications: UL 1449, UR recognized, CE marked\u003c\/li\u003e\n  \u003cli\u003eOperating Temperature: -40°C to +80°C\u003c\/li\u003e\n  \u003cli\u003eStatus Indicator: Green LED\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eApplications \/ Use Case\u003c\/h2\u003e\nAllen Bradley 4983-DS277-404 is built for use in industrial and commercial electrical distribution panels where protection from voltage transients is crucial. It is particularly suited for main service entrances, motor control centers, switchgear, and sensitive control panels in automation systems. Facilities using 277\/480 VAC systems—such as factories, data centers, and large commercial buildings—benefit from its reliable surge suppression, safeguarding PLCs, drives, sensors, and instrumentation against power disturbances. This model's 4-pole configuration allows coverage of all phases plus neutral, making it versatile for both 1-phase and 3-phase networks. Employing robust surge protection devices like this helps maintain equipment uptime, reduce maintenance costs, and extend overall system life, ensuring continued productivity and regulatory compliance.\n\n\u003ch2\u003eRelated Resources\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/\" target=\"_blank\"\u003eLeadTime.ca – Industrial Automation Components \u0026amp; Repair Services\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/collections\/allen-bradley\" target=\"_blank\"\u003eView All Allen Bradley Products\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/blogs\/learning-center\/examples-of-industrial-automation-control-systems\" target=\"_blank\"\u003eExamples of Industrial Automation and Control Systems\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-194e-sy\" target=\"_blank\"\u003eAllen Bradley 194E-SY Disconnect Switch\u003c\/a\u003e\u003c\/li\u003e\n  \u003cli\u003e\u003ca href=\"https:\/\/leadtime.ca\/products\/allen-bradley-1321-3r18-b\" target=\"_blank\"\u003eAllen Bradley 1321-3R18-B Resistor Assembly\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Allen Bradley","offers":[{"title":"Default Title","offer_id":47870785421611,"sku":null,"price":0.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0837\/4671\/7995\/files\/Leadtime_ade165f7-eaf0-4465-8d2a-500046293225.png?v=1723532118","url":"https:\/\/leadtime.ca\/products\/allen-bradley-4983-ds277-404","provider":"LEADTIME","version":"1.0","type":"link"}