User Manuals, Instructions and Guides for SEL products.

SEL-T401L Ultra High Speed Line Relay Instructions

Learn about the features and functionality of the SEL-T401L Ultra High Speed Line Relay by Schweitzer Engineering Laboratories, Inc. Discover its protection functions, applications, and monitoring capabilities in this comprehensive user manual. Protect multiterminal lines with ease using this high-resolution transient recorder equipped with trip-rated relay outputs for efficient fault detection and control. Improve your protection performance and enhance workforce efficiency with the SEL-T401L.

SEL-851 Feeder Protection Relay Installation Guide

Learn how to install and configure the SEL-851 Feeder Protection Relay with step-by-step instructions provided in the user manual. This manual includes details on installing components such as the SEL-2401 Satellite-Synchronized Clock and SEL-9322 15 VDC Power Supply for optimal performance. Reach out to technical support for assistance if needed.

SEL-651R and SEL-651RA Configurable Labels User Guide

Learn how to customize the target LED and operator control pushbutton areas of your SEL-651R and SEL-651RA with the Configurable Labels Kit. This user manual guides you through the process and provides pre-printed and blank labels for your convenience. Ensure that any customized labels match their corresponding control module programming. Contact Technical Service Center or SEL factory for additional kits.

SEL-351R Falcon Recloser Control Configurable Labels User Guide

Learn how to customize the target LED and operator control pushbutton areas of the SEL-351R Falcon Recloser Control with this Configurable Labels Kit. Use preprinted labels or create your own. This user manual provides step-by-step instructions and tips for removing and creating laser-printed labels.

SEL-735 Power Quality and Revenue Meter Instruction Manual

Learn how the SEL-735 Power Quality and Revenue Meter exceeds ANSI and IEC accuracy class requirements, with up to 512 channels for energy usage tracking and synchrophasors for system accuracy. This world-class meter integrates seamlessly into power quality monitoring systems and features a 5-inch color touchscreen for real-time monitoring and control. Get the accurate revenue metering you need for your generation, transmission, distribution, or industrial applications.

Determining Solid-State Drive (SSD) Lifetimes for SEL Computing Platforms Installation Guide

Learn how to choose the best Solid-State Drive for your SEL Computing Platforms family with this helpful application note. Discover the differences between SLC, pSLC, and MLC flash memory and determine the ideal drive for your needs based on endurance, capacity, and environmental factors. Find out more on the SEL website.