Product News: Electrical Equipment & Systems
Earth-Leakage Relay protects VFDs from 0-15,000 Hz.
Press Release Summary:
May 3, 2012 - Able to detect ground current, even in resistance-grounded electrical systems, EL731 AC/DC Sensitive Earth-Leakage Relay is equally useful for AC, mixed AC/DC, and DC systems, including low-voltage 6-pulse variable frequency drives used on motors up to 250 hp. Model EL731 can be installed in place of existing ground fault relay without replacing current transformer. Unit can protect variety of applications including conveyor belts, cranes, compressors, pumps, and mixers.
Original Press Release
Littelfuse Introduces the EL731 AC/DC Sensitive Earth-Leakage Relay
Press release date: April 17, 2012
Founded in 1927, Littelfuse, Inc., the worldwide leader in circuit protection, offers the industry's broadest and deepest portfolio of circuit protection products and solutions. Littelfuse devices protect products in virtually every market that uses electrical energy, from consumer electronics to automobiles to industrial equipment. In addition to its Chicago, Illinois, world headquarters, Littelfuse has more than 30 sales, distribution, manufacturing and engineering facilities in the Americas, Europe and Asia. Technologies offered by Littelfuse include Fuses; Gas Discharge Tubes (GDTs); Positive Temperature Coefficient Devices (PTCs); Protection Relays; PulseGuard® ESD Suppressors; SIDACtor® Devices; Silicon Protection Arrays(SPA(TM)); Switching Thyristors; TVS Diodes and Varistors. The company also offers a comprehensive line of highly reliable Electromechanical and Electronic Switch and Control Devices for commercial and specialty vehicles, as well as underground Power Distribution Centers for safe control and distribution of electricity in mining operations. For more information, please visit the Littefuse Web site at www.littelfuse.com.