Description
Switch disconnector in new design Iu=125 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:3KD3240-0NE20-0, 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 | 65 000 W | |||
| ● at AC-23 A / at 400 V / rated value | 65 000 W | |||
| ● at AC-23 A / at 500 V / rated value | 65 000 W | |||
| ● at AC-23 A / at 690 V / at 50/60 Hz / rated value | 90 000 W | |||
| operating current / rated value | 125 A | |||
| Rated current Ie / maximum / in utilization category | ||||
| ● AC-21 A / at 400 V | 125 A | |||
| ● AC-21 A / at 500 V | 125 A | |||
| ● AC-21 B / at 400 V | 125 A | |||
| ● AC-21 B / at 500 V | 125 A | |||
| ● AC-22 A / at 400 V | 125 A | |||
| ● AC-22 A / at 500 V | 125 A | |||
| ● AC-22 B / at 400 V | 125 A | |||
| ● AC-22 B / at 500 V | 125 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 |
70 mm² | |||
| Type of connection, main circuit | Flat-type screw terminal | |||
| type of electrical connection ● for main current circuit |
flat connector | |||
| Mechanical Design | ||||
| height | 110 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 | 2.08 kg | |||
| Environmental conditions | ||||
| ambient temperature / during operation ● minimum ● maximum |
-25 °C 55 °C |
|||
| ambient temperature / during storage ● minimum ● maximum |
-50 °C 80 °C |
|||
| Certificates | ||||
| reference code ● acc. to DIN EN 61346-2 ● acc. to DIN EN 81346-2 |
Q Q | |||
