Eaton DS-206S series Instructions Manual

Contents

57Instruction Booklet IB 33-790-1JEffective November 2010Instructions for Low Voltage PowerCircuit Breakers Types DS and DSLEaToN CorPoraTIoN www.eaton.comFigure 61 is the Amptector II-A trip unit with front coverremoved, showing all of the calibration marks on thedials. The ranges of current settings in multiples of sen-sor rating and time delay are as follows.1. Long-delay pick-up .5 to 1.25 X sensor rating.2. Long-delay 8 to 36 seconds, at 6 Xsensor rating.Over these ranges tripping will always occur within thetime band shown on Curve No. 1, page 59. The bottom ofthe band is called the resettable delay. If the overloadsubsides in less than the resettable delay time, resettingof the trip unit will occur within a few cycles after the loaddrops to less than 90% of the pick-up setting.3. Short-delay pick-up 4 to 10 X sensor rating.4. Short delay .18 seconds to .50 secondsor 11 to 30 cycles at 60 Hz,at 2.5 X pick-up setting.Over these ranges tripping will always occur within thetime band shown on Curve No. 1, page 59. Although thetime adjustment is continuous, three time bands are cali-brated as shown on the curve.5. Instantaneous Pick-up 4 to 12 X sensor rating.Three different combinations of trip elements are pro-vided. Those combinations with the corresponding Amp-tector II-A model designations as follows:1. Long DelayInstantaneous DU (DUAL)2. Long DelayShort Delay SE (SELECTIVE)3. Long DelayShort DelayInstantaneous TR (TRIPLE)Each Amptector II-A trip unit has a terminal block acces-sible on the front of the circuit breaker front panel.Figure 59 shows a typical standard wiring diagram, whichincludes the Amptector II-A trip unit terminal block. Thefollowing table explains the markings of the terminals.A Sensor phase A ON Output negative*B Sensor phase B DN Test point (internal neutral)**C Sensor phase C DS Test point**N Sensor neutral TP Test point**OP Output positive* DI Test point***To Actuator Coil. THIS COIL HAS A POLARITY MARK-ING ON THE POSITIVE LEAD WHICH MUST BEOBSERVED. OTHERWISE THE BREAKER WILL NOTHAVE OVERLOAD OR FAULT PROTECTION WHICHCOULD RESULT IN BODILY INJURY AND/OR SERI-OUS EQUIPMENT DAMAGE.**Terminals marked “test point” are intended to provideconnections for operation of the optional test kit.8.2 THE AMPTECTOR I-A TRIP UNITAmptector l-A trip units perform all of the functionsdescribed above for Amptector II-A trip units and in addi-tion provide the following.1. Optional adjustable ground fault protection withresettable operation indicator.2. All Amptectors l-A have a trip indicator that will indi-cate on overload tripping and another that indicateson short circuit tripping. (All indicators are reset man-ually.)Figure 62 shows the front of the Amptector l-A trip unit. Amaximum of seven adjustable controls with screwdriveradjustments may be provided for setting the followingcharacteristics:1. Long-delay current pick-up;2. Long-delay time;3. Short-delay current pick-up;4. Short-delay time;5. Instantaneous current pick-up;6. Ground current pick-up; and7. Ground delay time.Fig. 62 Optional Amptector I-A Solid-State Trip Unit.