Vacuum AC contactor, EVS-160.250.400.630/3 1140V
Model EVS-160 EVS-250 EVS-400 EVS- 630 rated working voltage Ue 1140V 1140V 1140V 1140V rated working current Ie 160A 250A 400A 630A rated frequency 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz 50Hz/60Hz rated connection capacity Cosø=0.35 1920A 3000A 4800A 7560A rated breaking capacity Cosø=0.35 1600A 2500A 4000A 6300A motor allowed maximum power 660V50Hz 140KV 220KW 350KW 560KW suction time 30ms 30ms 30ms 30ms release time 20ms 20ms 15ms 15ms mechanical life (times) 5×106 maximum operating frequency (times / time / h 300 conditions of use:(1) The normal working condition of the contactor complies with GB/T14048·1-93 “Low-voltage switchgear and control equipment” (2) Allowable ambient air temperature: -25°C--45°C (3) Relative humidity: At temperature 25 At °C, the maximum relative humidity can reach 90° (4) Pollution level: Level 3 (5) Sea Pull Height: No more than 2000 meters (6) Installation conditions: Vertical upward (drive mechanism is on), installation area and vertical plane are not inclined Greater than 15°
EVS160, EVS250 heavy duty low pressure vacuum contactor
First, the scope of application
This series of heavy-duty low-voltage vacuum contactors are suitable for 50Hz, rated working voltage to 1140V, rated working current to 630A power system, for long-distance, close-range switching and breaking circuits, and frequent start-up and control under mission conditions. The AC motor can be combined with various protection devices to form an electromagnetic starter. This series of vacuum contactors has the advantages of large connection and breaking capacity, long electrical and mechanical life, and high reliability under harsh conditions. Particularly suitable for use in basic industries, metallurgy, petroleum, chemical, mining and docking departments.
Second, the main technical parameters model
| EVS160 | EVS250 | EVS400 | EVS630 | | Rated operating voltage Ue | 1140V | 1140V | 1140V | 1140V | | Rated operating current Le | 160A | 250A | 400A | 630A | Frequently rated
| 50Hz | 50Hz | 50Hz | 50Hz | | Rated connection capacity Cos=0.35 | 1920A | 3000A | 4800A | 7560A | | Rated breaking capacity Cos=0.35 | 1600A | 2500A | 4000A | 6300A | | The motor allows a maximum power of 660V50Hz | 140KW | 220KW | 350KW | 560KW | Pick up time
| 30ms | 30ms | 30ms | 30ms | Release time
| 20ms | 20ms | 15ms | 15ms | | Mechanical life (times) | >5x10 6th power
| | Maximum frequency (times / h) | 300 | | Power life Ac2 | 3x10 to the 6th power
| 2x10 to the 6th power
| 2x10 to the 6th power
| 1x10 to the 6th power
| | Ac3 | 5x10 to the 6th power
| 5x10 to the 6th power
| 5x10 to the 6th power
| 3x10 to the 6th power
| | Ac4 | 0.12x10 to the 6th power
| 0.08x10 to the 6th power
| 0.08x10 to the 6th power
| 0.06x10 to the 6th power | |
