Description
Switch disconnector in new design Iu=80 A, Ue = 690 V, 4-pole 4th pole selectable, AC-21A with door drive 8UC7 Handle dark blue/blue-green Basic masking frame light gray Product phase-out since: 31.08.18 Successor:3KD2840-0NE20-0, diff. dimen, deviat. techn. data, w/o door coupl rot oper mech
| 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 | 690 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 |
| power loss [W] / for rated value of the current / at AC / in hot operating state / per pole |
4 W |
| Current | |
| Let-through current / I2 t / maximum permissible / in utilization category / AC-22 B / at 400 V | 130 000 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 | 40 000 W |
| ● at AC-23 A / at 400 V / rated value | 40 000 W |
| ● at AC-23 A / at 500 V / rated value | 40 000 W |
| ● at AC-23 A / at 690 V / at 50/60 Hz / rated value | 50 000 W |
| operating current / rated value | 80 A |
| Rated current Ie / maximum / in utilization category | |
| ● AC-21 A / at 400 V | 80 A |
| ● AC-21 A / at 500 V | 80 A |
| ● AC-21 B / at 400 V | 80 A |
| ● AC-21 B / at 500 V | 80 A |
| ● AC-22 A / at 400 V | 80 A |
| ● AC-22 A / at 500 V | 80 A |
| ● AC-22 B / at 400 V | 80 A |
| ● AC-22 B / at 500 V | 80 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 |
100 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 |
35 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 | 2.474 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 | |||
