System pro M compact® - Piti Group

Systempro M compact ®Technical detailsRD2 residual current monitorsModularresidual currentdevicesRD2 RESIDUAL CURRENT MONITORSThey operate combined with appropriate toroidal transformers (in 9 different diameters) which performthe sum of line currents; any current leakage in the monitored circuit causes, in the secondary of thetoroidal transformer, a signal detected by the relay which intervenes.The relay can command the tripping of the protection circuit-breaker release, thus breaking thecircuit.According to the IEC 60755 Standard, these relays are sensitive to leakage sinusoidal currents andto leakage pulsating currents with direct components. Thus they can be defined as “A type”.Some electric circuits allow to adjust sensitivity and time; the values can be selected throughappropriate minidips.More technical characteristicsCalibration tolerances - sensitivity +0% -50%- time +0% -50%Power consumption [W] 0.45 at 48 V AC/DC1.2 at 110 V AC/DC3.4 at 230 V AC11 at 400 V ACDielectric test voltageat ind. freq. for 1 min. [kV] 2.5Max. peak currentwith 8/20 μs wave [A] 5000Installation positionanyProtection degreeIP20L1L2L3N1 2 3 4COM NO NC6 7 89 10Wire the terminals 9 and 10 ofthe RD2 to the terminals 1 and2 of the toroidal transformers.Do not use terminals 3 and 4,when present101 2 3 4 5Power supplyRD2: 230400 V a.c.RD2-48: 48150 V a.c./d.c.Selection tables ............................. pag. 5/11ABB10/101