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| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | RI-R48 series RI-R48N series INSULATION MONITORING VERSIONS FOR NETWORKS ac/dc MAX 48 V | | | | | | | | | | GENERAL | | | | | | | | | | The devices allow the insulation monitoring to earth of electric networks in alternate and direct-current till 48 V isolated (IT systems). They measure potential's variation of two polarities on earth so that provide for a signal of insulation decreasing under a fixed level. Monitoring is carried out measuring potential's variation of two polarities on earth. Auxiliary supply is taken from under-control network. There are different versions available: some, very cheap, with a fixed tripping threshold, others with possibility of adjustable calibration of tripping threshold and versions with indication of polarity (positive or negative, phase or neutral) on which the failure took place. Devices have on frontal panel signal for activity ON, for tripping TRIP (low insulation), a test bottom, a reset bottom and a potentiometer (or micro switches) for setting the threshold of tripping (only for versions with adjustable threshold). | | | | | | | | | MODELS RI-F48 fixed threshold RI-R48 adjustable threshold RI-R48N adjustable threshold, indication of broken down polarity | | | | | | | | | | I FUNCTIONS AND OPERATORS - LEGENDA | | | | | | | | | | JO o o o o | | | | | | | | | | 1 Potentiometer/micro switches for insulation tripping setting (only for models RI-R48 and RI-R48N) 2 Manual reset button (only for models RI-R48 and RI-R48N) 3 Test button 4 Signal of supplied relay ON (green LED) 5 Signal for insulation's threshold set reached (indication of broken down polarity for RI-R48N) | | | | | | 2 | | | | | | 2 | | | | | | | | | | | | | | RI-R48 STK | | | | | | | | | | RESET | | | | | | | | | | 3 4 | | | | | | 1 | | | | | | | | | | TRIP ON | | | | | | TEST | | | | | | | | | | | | | | 5 | | | | | | | | | | | | | | 1 | | | | | | | | | | | | | | 4 | | | | | | Jo o o o o | | | | | | | | | | | | | | | DIMENSIONS | | | | | | | | | | 52,5 | | 58 | | | | | | | | | | | | | | RI-R48 I RI-F48 | | | | | | RI-R48N | | | | | | to O O O oD | | | | | | 7 8 9 10 11 12 000O00 | | | | | | | | | | | | | | | | | | | | | | LA | | | | | | | | | | Q | | | | | | INSULATION MONITORING | | | | | | RI-R48 | | | | | | | | | | | | | | | | | | RESET | | | | | | RI-R48N INSULATION MONITOR 40»E"| 30 JET"! go -lp~| io—lp I | | | | | | LO LO CO | | | | | | | | | | 1_I ON | | | | | | 30 10V^--^0 Tn,n ™ ^ | | | | | | LO CO | | | | | | LO | | | | | | | | | | RESET | | | | | | | | | | | | | | | | | | | | | | | | | | | | i | | | | | | TEST | | | | | | TRIP | | | | | | | | | | | | | | | | | | | ALARM l | | | | | | | | | | | | | | Co o o o od | | | | | | 0O0O0O 1 2 3 4 5 6 | | | | | | | | | | | | | | 64 | | 44 | | | | | | | | | | 52,5 | | 68 | | | | | | 65 | | | | | | | | | | | | | | | | | | mm | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
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