Cet4 protection relay manual

Euchner EUCHNER SAFETY SWITCH WITH GUARD LOCKING AND INTEGRATED EVALUATION ELECTRONICS, distributed by Kempston Controls. . differential protective relay (power system device function numbers) A protective relay that functions on a percentage or phase angle or other quantitative difference of two currents or of some other electrical quantities directional control (as File Size: 1MB. The CET4 is a guard locking device according to EN ISO using the opencircuit current principle-. The two safe outputs of the CET4 are connected to a PNOZ s5 safety relay. Connections Designation Function Use in this example OA, OB Safety outputs. HIGH when the safety guard is closed and locked.

C/XT Electronic Motor Protection Relays. The C/XT Electronic Overload Relay delivers enhanced motor protection and communications capabilities in a single compact device, directly monitoring motor current in each phase. Thermal modeling is performed electronically with precision solid-state components. Features. Documentation. manual reset button and terminals for remote reset. Model RT3-U also has a test button to check operating readi-ness and a green LED for power-on and power-loss indication. For the very highest protection requirements, the RT3 can be used in combination with Sprecher + Schuh’s CT Thermal Overload Relays, KTA Motor Circuit Control-lers or the. Find Product Literature from the library below. Search by topic, title, part number, or use the categories to filter available literature. Here are some other helpful links: Become a Registered User. Get unlimited access to Sprecher Schuh literature, white papers, technical documents and instruction sheets. Order a Catalog.

98, supply A1, A2 Phase sequence protection L1, L2, L3 Alarm relay (AL), Auxiliary relay #1, #4, #5 as per IEC Core balance c.t. k, I Control inputs #1, #. 26 sept RT 7 thermistor protection relay CET 5 advanced electronic motor protection relays E Auto/Manual selector, separate trip and set. Littelfuse has an advanced line of motor protection relays to provide protection for small, medium, and large motors in critical applications.