| BRAND | Carlo Gavazzi |
| Product | DFC01DB48 |
| Description | Monitoring Relays |
| Internal code | IMP249734 |
| Weight | 1 |
| Technical specification | Monitoring Relays Frequency monitoring TypeDFC01 • Over and under frequency monitoring relay • Measures if power supply frequency is within set limits • Measures on own power supply • Separately adjustable upper/lower level on relative scale • Separately adjustable delay functions (0.1 to 30 s) • Output: 2 x 8 A SPDT relays • For mounting on DIN-rail in accordance with DIN/EN 50 022 • 45 mm Euronorm housing • LED indication for relays, alarm and power supply ON Product Description Ordering key DFC 01 D B23 DFC01 is a precise frequen- cy monitoring relay. It moni- tors its own power supply. Overfrequencyandunder- frequency can be monitored separately with two indepen- dentsetpoints,delay times and relay outputs. The LED's indicate the state of the alarm and the output relay. Housing Function Type Item number Output Power Supply TypeSelection MountingOutput Supply: 24/48 VACSupply: 115/230 VAC DIN-rail2 x SPDT DFC 01 D B48DFC 01 D B23 InputSpecifications Input Own power supply A1, A2 or A2, A3 Measuring ranges Upper level Lower level Selectable by DIP-switches 2 Hz range+0.2 to +2.2 Hz -2.2 to -0.2Hz 50 Hz 50.2 to 52.2 Hz 47.8 to 49.8 Hz 60 Hz 60.2 to 62.2 Hz 57.8 to 59.8 Hz 10 Hz range+1 to +11 Hz-11 to -1 Hz 50 Hz 51 to 61 Hz39 to 49 Hz 60 Hz 61 to 71 Hz49 to 59 Hz Ranges Upper frequency level+10 to +110% of the selected range Lower frequency level-110 to -10% of the selected range Output Specifications Output2 x SPDT relays N.E. Rated insulation voltage 250 VAC Contact ratings (AgSnO2)µ Resistive loadsAC 1 8 A @ 250 VAC DC 12 5 A @ 24 VDC Small inductive loads AC 15 2.5 A @ 250 VAC DC 13 2.5 A @ 24 VDC Mechanical life≥ 30 x 106operations Electrical life ≥ 105operations (at 8 A, 250 V, cos ϕ = 1) Operating frequency≤ 7200 operations/h Dielectric strength Dielectric voltage≥ 2 kVAC (rms) Rated impulse withstand volt.4 kV (1.2/50 µs) Hysteresis (frequency) 2 Hz range~ 0.05 Hz 10 Hz range~ 0.25 Hz Supply Specifications Power supplyOvervoltage cat. III Rated operational voltage(IEC 60664, IEC 60038) through terminals:A1, A2 or A3, A2 B48:24/48 VAC ± 15% 40 to 70 Hz, insulated B23:115/230 VAC ± 15% 40 to 70 Hz, insulated Rated operational power 5 VA |
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