Eaton Digitrip RMS 510 Instruction Leaflet

Also see for Cutler-Hammer Digitrip RMS 510: Instructions Instructional Leaflet Instructions

3Instruction Leaflet I. L. 29-885DEffective August 2011Instructions for Digitrip RMS 510 Trip UnitEATON CORPORATION www.eaton.comImportant Safety InstructionsWARNINGDO NOT ATTEMPT TO INSTALL OR PERFORM MAINTENANCE ONEQUIPMENT WHILE IT IS ENERGIZED. DEATH OR SEVERE PERSONALINJURY CAN RESULT FROM CONTACT WITH ENERGIZED EQUIPMENT.ALWAYS VERIFY THAT NO VOLTAGE IS PRESENT BEFORE PROCEEDINGWITH THE TASK, AND ALWAYS FOLLOW GENERALLY ACCEPTEDSAFETY PROCEDURES. EATON CORPORATION IS NOT LIABLE FOR THEMISAPPLICATION OR MISINSTALLATION OF ITS PRODUCTS.It is strongly urged that the User observe all recommendations,warnings and cautions relating to the safety of personnel and equip-ment, as well as all general and local health and safety laws, codes,and proceduresThe recommendations and information contained herein are basedon experience and judgment, but should not be considered to beall-inclusive or covering every application or circumstance whichmay arise If you have any questions or need further informationor instructions, please contact your local representative, or theCustomer Support Center for the type of circuit breaker you have1 General Description - Digitrip RMS 510Trip Unit1.1 Basic Digitrip RMS 510 Trip UnitThe Digitrip RMS 510, illustrated in Figure 2, is a Trip Unit suitablefor use in types DS and DSL Low-Voltage AC power circuit breakersand type SPB Systems Pow-R circuit breakers and Series C R-Framemolded case circuit breakers The Digitrip RMS 510 Trip Unit pro-vides three basic functions:Function SectionProtection 1 1 2 – 1 1 5 and 3Information 1 1 1Testing 4Digitrip RMS 510 provides true RMS current sensing for proper cor-relation with thermal characteristics of conductors and equipmentInterchangeable rating plugs are provided to establish the continuouscurrent rating of each circuit breaker The Digitrip RMS 510 Trip Unitis designed for use in industrial circuit breaker environments wherethe ambient temperatures can range from -20°C to +85°C (-4°F to185°F) and rarely exceed 70 to 75°C (158 to 167°F) If, however,temperatures in the neighborhood of the Trip Unit do exceed thisrange, the Trip Unit performance may be degraded In order toinsure that the tripping function is not compromised due to an over-temperature condition, the Digitrip RMS 510 microcomputer chip hasa built-in over-temperature protection feature, factory set to trip thebreaker if the chip temperature is excessive If over-temperature isthe reason for the trip, the Long Delay Time LED will light "RED"The Trip Unit employs the Eaton custom designed integrated circuitmicroprocessor which includes a micro-computer to perform itsnumeric and logic functions The principle of operation is describedby the block diagram shown in Figure 1Figure 1. RMS Digitrip 510 Trip Unit - Block Diagram.MicroprocessorCustom DesignedIntegrated CircuitAuxiliary Power Module Input(When Used - See Section 1.3)