Description
Switch disconnector in new design Iu=160 A, Ue = 690 V, 4-pole basic version without 8UC6 handle and shaft 4th pole selectable, AC-21A Product phase-out since: 31.08.18 Successor:3KD3440-0NE20-0, different dimensions, some deviating technical values
| Model | |||||
| product brand name | SENTRON | ||||
| product designation | Switch Disconnector 3KA | ||||
| Design type | For mounting and installation | ||||
| design of the operating mechanism | manual operating mechanism | ||||
| design of the load switch / strip form | No | ||||
| type of the driving mechanism / motor drive | No | ||||
| type of device | fixed mounting | ||||
| protection against electrical shock | finger-safe | ||||
| insulation voltage / rated value | 1 000 V | ||||
| type of voltage | AC/DC | ||||
| operating voltage ● at AC / at 50/60 Hz / rated value ● at DC / rated value |
690 V 440 V |
||||
| Protection class | |||||
| protection class IP | IP00 | ||||
| Dissipation | |||||
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole |
7.33 W | ||||
| Current | |||||
| Let-through current / I2 t / maximum permissible / in utilization category / AC-22 B / at 400 V |
223 000 A²·s | ||||
| Main circuit | |||||
| number of poles / for main current circuit | 4 | ||||
| operating power | |||||
| ● at AC-23 A / at 400 V / at 50/60 Hz / rated value | 80 000 W | ||||
| ● at AC-23 A / at 400 V / rated value | 80 000 W | ||||
| ● at AC-23 A / at 500 V / rated value | 80 000 W | ||||
| ● at AC-23 A / at 690 V / at 50/60 Hz / rated value | 110 000 W | ||||
| operating current / rated value | 160 A | ||||
| Rated current Ie / maximum / in utilization category | |||||
| ● AC-21 A / at 400 V | 160 A | ||||
| ● AC-21 A / at 500 V | 160 A | ||||
| ● AC-21 B / at 400 V | 160 A | ||||
| ● AC-21 B / at 500 V | 160 A | ||||
| ● AC-22 A / at 400 V | 160 A | ||||
| ● AC-22 A / at 500 V | 160 A | ||||
| ● AC-22 B / at 400 V | 160 A | ||||
| ● AC-22 B / at 500 V | 160 A | ||||
| Auxiliary circuit | |||||
| number of CO contacts / for auxiliary contacts | 0 | ||||
| number of NC contacts / for auxiliary contacts | 0 | ||||
| number of NO contacts / for auxiliary contacts | 0 | ||||
| Short circuit | |||||
| maximum short-circuit current breaking capacity (Icu) / at 400 V / rated value |
120 kA | ||||
| Conditional rated short-circuit current | |||||
| ● 400V | 120 kA | ||||
| ● 500V | 120 kA | ||||
| ● in utilization category / AC-21 A / at 400 V | 120 kA | ||||
| ● in utilization category / AC-21 A / at 500 V | 120 kA | ||||
| ● in utilization category / AC-21 B / at 400 V | 120 kA | ||||
| ● in utilization category / AC-21 B / at 500 V | 120 kA | ||||
| ● in utilization category / AC-22 A / at 400 V | 120 kA | ||||
| ● in utilization category / AC-22 A / at 500 V | 120 kA | ||||
| ● in utilization category / AC-22 B / at 400 V | 120 kA | ||||
| ● in utilization category / AC-22 B / at 500 V | 120 kA | ||||
| Connections | |||||
| connectable conductor cross-section / for main contacts ● stranded / maximum |
120 mm² | ||||
| Type of connection, main circuit | Flat-type screw terminal | ||||
| type of electrical connection ● for main current circuit |
flat connector | ||||
| Mechanical Design | |||||
| height | 125 mm | ||||
| width | 215 mm | ||||
| depth | 143 mm | ||||
| Type of mounting | fixed mounted | ||||
| mounting type | floor mounting | ||||
| mounting type ● front mounting with 4-hole attachment ● front mounting with central attachment ● rail mounting |
No No No | ||||
| mounting position | any | ||||
| net weight | 2.148 kg | ||||
| Environmental conditions | |||||
| ambient temperature / during operation ● minimum ● maximum |
-25 °C 55 °C |
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| ambient temperature / during storage ● minimum ● maximum |
-50 °C 80 °C |
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