Nominal line voltage, V | 415 |
Mains frequency, Hz | 45-55 |
Harmonical configuration (nonsinusoidality) of power supply voltage | EN 61000-3-2 (IEC 1000-3-2) |
Nominal current range in UBZ-301 5-50А, 10-100A, 63-630A | 5-50, 10-100, 63-630 |
Operating current setting range, % of nominal | ±15 |
Double overload delay adjustment range, sec | 10-100 |
Voltage threshold adjustment range, % of nominal | ±(5-20) |
Phase imbalance adjustment range, % | 5-20 |
Trip threshold adjustment range for the minimum current, % of nominal | 0-75 |
Automatic reset delay adjustment range ( Тon), sec | 0-600 |
First energization load delay when Тon= 0, sec | 2-3 |
Trip delay for current overload | According to current-time characteristic curve |
Trip delay for voltage fault, sec | 2 |
Trip delay for current fault (overload excluded), sec | 2 |
Fixed trip point for leakage current, А | 0.5 |
Insulation resistance threshold, kОhms | 500±20 |
Voltage hysteresis, V | 10/17 |
Heat hysteresis, % of stored-up heat after load de-energization | 33 |
Trip threshold accuracy for current, % of nominal current, not more than | 2-3 |
Trip threshold accuracy for voltage, V, not more than | 3 |
Phase imbalance accuracy, %, not more than | 1.5 |
Operating voltage range, % of nominal one | 50-150 |
Power consumption (under load), VA, not more than | 3.0 |
Maximum switched current of output contacts, A | 5 |
Output contact life: – under 5A load , operations, no less than – under 1A load , operations, no less than | 100 000 1 000 000 |
Enclosure: – apparatus – terminal block | IP40 IP20
|
Operating temperature range, °C | from -35 to +55 |
Overvoltage category | III |
Nominal voltage of isolation, V | 450 |
Nominal impulse withstanding voltage, kV | 4 |
Cross section of wires of connection terminals, mm² | 0.5-2 |
Maximal tightening torque of terminals external screws, N*m | 0.4 |
Allowable soil level | II |
Weight, kg, not more than | 0.200 |
Case dimensions 4 modules of S-type |
Mounting standard 35 mm DIN-rail |
Mounting position arbitrary |