| Switch disconnector 1000 A, Size 5, 3-pole Front operating mechanism left Complete unit with direct operating mechanism gray flat terminal |
| Model |
| Product brand name | SENTRON |
| Product designation | 3KD switch disconnector |
| Design of the product | Switch |
| Display version / for switch position indicator manual operation | ON-OFF-TEST |
| Design of the operating mechanism | Long rotary knob |
| Type of the driving mechanism / motor drive | No |
| General technical data |
| Number of poles | 3 |
| Type of device | fixed mounting |
| Size of switch disconnector | 5 |
| Electrical endurance (switching cycles) | |
| at DC-21 A / at 1000 V | 100 |
| at AC-23 A / at 690 V / at 50/60 Hz | 500 |
| at DC-23 A / at 440 V | 500 |
| |
| I2t value / with closed switch / for combination switch + fuse / at 500 V / maximum | 15 400 000 A²·s |
| I2t value / with closed switch / for combination switch + fuse / at 400 V / maximum | 15 400 000 A²·s |
| I2t value / of the fuse / at 500 V / maximum permissible | 19 000 005 A²·s |
| circuit-breaker / Design | 3KD5 |
| Mechanical service life (switching cycles) / typical | 6 000 |
| Position / of the switch operating mechanism | at the left end |
| Overvoltage category | IV |
| Voltage |
| Operating voltage / with current paths in series | |
| with degree of pollution 2 / at DC / rated value / Note | 440 V / 3 |
| with degree of pollution 3 / at DC / rated value / Note | 440 / 3 |
| Insulation voltage | |
| rated value | 1 000 V |
| Surge voltage resistance / rated value | 12 kV |
| Overvoltage in percent / relative to the operating voltage / at AC / at 50/60 Hz | 10 % |
| Protection class |
| Protection class IP | IP00 |
| Protection class IP | |
| with closed switch / with cover or cable lug cover | IP20 |
| on the front | IP00 |
| Dissipation |
| Power loss [W] | |
| with conventional rated thermal current / per pole | 20 W |
| with conventional rated thermal current / per device | 60 W |
| for rated value of the current / at AC / in hot operating state / per pole | 20 W |
| Electricity |
| Operating current | |
| at AC-21 A / at 400 V / maximum | 1 000 A |
| at AC-21 A / at 500 V / maximum | 1 000 A |
| at AC-21 A / at 690 V / maximum | 1 000 A |
| at AC-23 A / at 500 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at AC-22 A / at 500 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at AC-22 A / at 400 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at AC-22 A / at 690 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at AC-23 A / at 400 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at AC-23 A / at 690 V / at 50/60 Hz / rated value / maximum | 1 000 A |
| at DC-21 A / at 750 V / rated value / maximum | 1000 |
| at DC-21 A / at 440 V / rated value / maximum | 1000 / 3 |
| at DC-21 A / at 220 V / maximum | 1000 / 2 |
| at DC-21 B / at 750 V / rated value / maximum | 1000 |
| Current / at AC / rated value | 1 000 A |
| Continuous current | |
| rated value | 1 000 A |
| at 40 °C / rated value | 1 000 A |
| at 45 °C / rated value | 1 000 A |
| at 50 °C / rated value | 1 000 A |
| at 55 °C / rated value | 1 000 A |
| at 60 °C / rated value | 1 000 A |
| at 65 °C / rated value | 1 000 A |
| at 70 °C / rated value | 1 000 A |
| Continuous current / at DC / rated value | 1 000 A |
| Let-through current / of the fuse / at 500 V / maximum permissible | 95 216 A |
| Let-through current / with closed switch | |
| for combination switch + fuse / at 400 V / maximum permissible | 95 900 A |
| for combination switch + fuse / at 500 V / maximum permissible | 95 900 A |
| Short-time current resistance (Icw) | |
| at 690 V AC/440 V DC / limited to 1 s / rated value | 50 kA |
| Main circuit |
| Operating power | |
| at AC-23 A / at 400 V / at 50/60 Hz / rated value | 560 kW |
| at AC-23 A / at 500 V / at 50/60 Hz / rated value | 710 kW |
| at AC-23 A / at 690 V / at 50/60 Hz / rated value | 1 000 kW |
| Operating voltage | |
| at AC / at 50/60 Hz / rated value | 690 V |
| Auxiliary circuit |
| Number of connected NC contacts / for auxiliary contacts | 0 |
| Number of connected NO contacts / for auxiliary contacts | 0 |
| Number of connected CO contacts / for auxiliary contacts | 0 |
| Number of CO contacts / for auxiliary contacts | 0 |
| Number of NC contacts / for auxiliary contacts | 8 |
| Number of NO contacts / for auxiliary contacts | 8 |
| Suitability |
| Suitability for use | |
| Main switch | Yes |
| switch disconnector | Yes |
| EMERGENCY OFF switch | No |
| safety switch | Yes |
| maintenance/repair switch | Yes |
| Product details |
| Product feature / interlock | Yes |
| Product component | |
| Trip indicator | No |
| Voltage trigger | No |
| undervoltage release | No |
| undervoltage release with leading contact | No |
| Product extension | |
| Auxiliary switch | Yes |
| optional | |
| — motor drive | No |
| — Voltage trigger | No |
| Short circuit |
| Short-circuit current making capacity (Icm) | |
| for switch disconnector / at 690 V AC/440 V DC / without fuse link / rated value / minimum | 105 kA |
| for switch disconnector / without fuse link / rated value / minimum | 105 kA |
| Conditional short-circuit current / with line-side fuse protection | |
| at 500 V / by gG fuse / rated value | 100 kA |
| Connections |
| |
| Type of connectable conductor cross-sections / for aluminum conductor / stranded / with lug | 1x (120 ... 300 mm²), 2x (95 ... 300 mm²) |
| Type of connectable conductor cross-sections / for copper conductor / stranded / with lug / acc. to DIN 46235 | 1x (120 ... 240 mm²), 2x (95 ... 240 mm²) |
| Type of electrical connection | |
| for main current circuit | flat connector |
| Mechanical Design |
| Height | 310 mm |
| Width | 360 mm |
| Depth | 212.5 mm |
| Mounting position | any |
| Mounting type | screw fixing |
| Mounting type | |
| front mounting with 4-hole attachment | No |
| front mounting with central attachment | No |
| rail mounting | No |
| Net weight | 16 700 g |
| Environmental conditions |
| Degree of pollution | 3 |
| Ambient temperature | |
| during operation / minimum | -25 °C |
| during operation / maximum | 70 °C |
| during storage / minimum | -50 °C |
| during storage / maximum | 80 °C |
