Visit and request live test run video and test report, Industrial Sol Pte Ltd Singapore, Jurong East - isolonline Industrial Sol Pte Ltd is not an authorized distributor for Schweitzer products and parts. SGKO1 HXR Schweitzer Engineering Model: SEL-311L / SEL311L Line Current Differential Protection and Automation System Part Number: 0311L0HCC4254XX SEL Schweitzer Engineering Laboratories. The Schweitzer SEL-311L Line Current Differential Protection and Automation System is a high-performance relay designed for fast, reliable line protection with integral four-zone distance backup. It features subcycle current differential protection with single or dual differential channels, providing robust security even in challenging scenarios like CT saturation or tapped loads. Ideal for two- or three-terminal lines, it supports a range of applications with advanced features like hot-standby differential channels, directional overcurrent backup, and four-shot reclosing. With versatile communication options, including fiber and multiplexed channels, the SEL-311L ensures dependable operation. Its integrated LCD display and real-time monitoring of breaker wear, battery voltage, and relay health enhance reliability and streamline automation systems, reducing overall project costs. ** 30 Days Free Return. Power on and tested item testing picture are attached. Have some marks and scratches due to old stock. All the pictures are Organic and this part is physically in our stock. Condition and Details: This is a used item in good condition. Not In the Original Packing No Accessories / Cables or probe (only what showing in actually given pictures and in the description). Old Stock. Shipping: Usually, we ship same business day, subject to clear funds into our account Standard order processing time is 2 to 4 business days Item will be packed as per International Standard, International Orders: DHL / SingPost / EMS * Expedited shipping is available for an extra fee. * International buyers pay all custom, duties, taxes brokerage fees at their end Warranty and Returns: Warranty: Free 30 Days Money Back or Replacement, Seller pays return shipping. Product Returns: Returns: Return to Base Warranty, Any type of power failure/burn / physical damage / tempered seal will void the warranty. Payment: Payment Methods: PayPal Credit Cards Wire-transfer: Kindly contact us for payment instructions International buyers without PayPal: Kindly contact us before bidding About Us: We deal in Semiconductor Wafer Handling Parts/Components/machinery and types of equipment. A Verity of Industrial Automation Equipment and Parts. Industrial PCs, PLCs, HMI, Controllers, and Sensors. Industrial robotics, Data Acquisition, and Test Measurement. Industrial Single Board Computers. Marine Parts / Equipments. Oil Gas and offshore station. Lab and Research Equipments. We Source, We Refurbish, We Service and We also Repair ?please contact for any further detailed inquiries.