| Switch disconnector 80 A, Size 2, 3-pole Front operating mechanism center Basic unit without handle flat terminal incl. phase barriers |
| Model |
| product brand name | SENTRON |
| Product designation | 3KD switch disconnector |
| Design of the product | Switch |
| Display version / for switch position indicator door-coupling rotary operating mechanism | ON-OFF |
| Design of the operating mechanism | Without handle |
| type of the driving mechanism | Front operating mechanism |
| Type of the driving mechanism / motor drive | No |
| General technical data |
| number of poles | 3 |
| Type of device | fixed mounting |
| Size of switch disconnector | 2 |
| Electrical endurance (switching cycles) | |
| ● at AC-23 A / at 690 V | 1 500 |
| ● at DC-23 A / at 440 V | 1 500 |
| |
| ● I2t value / with closed switch / for combination switch + fuse / at 500 V / maximum | 135 600 A²·s |
| ● I2t value / with closed switch / for combination switch + fuse / at 400 V / maximum | 135 600 A²·s |
| ● I2t value / with closed switch / at 415 V / for combination switch +molded case circuit breaker / maximum | 1 055 000 A²·s |
| ● I2t value / with closed switch / at 690 V / for combination switch + gG fuse / maximum | 178 300 A²·s |
| ● I2t value / with closed switch / at 690 V / for combination switch + aM fuse / maximum | 201 200 A²·s |
| ● I2t value / with closed switch / at 1000 V / for combination switch +gG/aM SITOR fuse / maximum | 19 815 A²·s |
| ● I2t value / of the fuse / at 500 V / maximum permissible | 223 005 A²·s |
| ● I2t value / of the gG fuse / at 690 V / maximum permissible | 226 005 A²·s |
| ● I2t value / of the gG/aM SITOR fuse / at 1000 V / maximum permissible | 48 000 A²·s |
| ● I2t value / of the molded case circuit breaker / at 415 V / maximum permissible | 1 750 000 A²·s |
| Mechanical service life (switching cycles) / typical | 15 000 |
| Position / of the switch operating mechanism | after the first pole |
| Overvoltage in percent / relative to the operating voltage / at AC / at 400, 500, 690 V / at 50/60 Hz | 10 % |
| overvoltage category | III |
| Degree of pollution | 3 |
| Voltage |
| Operating voltage / with current paths in series | |
| ● with degree of pollution 2 / at DC / rated value | 440 V / 3 |
| ● with degree of pollution 3 / at DC / rated value | 440 V / 3 |
| Insulation voltage | |
| ● rated value | 1 000 V |
| Surge voltage resistance / rated value | 8 kV |
| Supply voltage |
| Operating current / at AC / rated value | 80 A |
| Operating voltage | |
| ● at AC / at 50/60 Hz / rated value | 1 000 V |
| Protection class |
| Protection class IP | IP00 |
| |
| ● Protection class IP / with closed switch / with cover or cable lug cover | IP20 |
| ● protection class IP / on the front | IP00 |
| Dissipation |
| Power loss [W] | |
| ● with conventional rated thermal current / per pole | 1.1 W |
| ● with conventional rated thermal current / per device | 3.3 W |
| ● for rated value of the current / at AC / in hot operating state / per pole | 1.1 W |
| Current |
| |
| ● Operating current / at AC-23 A / at 690 V / rated value | 80 A |
| ● Operating current / at AC-23 A / at 500 V / rated value | 80 A |
| ● Operating current / at AC-23 A / at 400 V / rated value | 80 A |
| ● Operating current / at AC-22 A / at 690 V / rated value | 80 A |
| ● Operating current / at AC-22 A / at 500 V / rated value | 80 A |
| ● Operating current / at AC-22 A / at 400 V / rated value | 80 A |
| ● Operating current / at AC-20 A / at 1000 V / maximum | 80 A |
| ● Operating current / at AC-21 A / at 400 V / rated value | 80 A |
| ● Operating current / at AC-21 A / at 500 V / rated value | 80 A |
| ● Operating current / at AC-21 A / at 690 V / rated value | 80 A |
| ● Operating current / at AC-23 A / at 500 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at AC-22 A / at 500 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at AC-22 A / at 400 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at AC-22 A / at 690 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at AC-23 A / at 400 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at AC-23 A / at 690 V / at 50/60 Hz / rated value / maximum | 80 A |
| ● Operating current / at DC-20 A / at 1000 V / maximum | 80 A / 1 |
| ● Operating current / at DC-23 A / at 440 V / rated value / Note | 80 A / 3 |
| ● Operating current / at DC-23 A / at 220 V / rated value / Note | 80 A / 2 |
| ● Operating current / at DC-22 A / at 440 V / rated value / Note | 80 A / 3 |
| ● Operating current / at DC-22 A / at 220 V / rated value / Note | 80 A / 2 |
| ● Operating current / at DC-21 A / at 440 V / rated value / Note | 80 A / 3 |
| ● Operating current / at DC-21 A / at 220 V / rated value | 80 A / 2 |
| Continuous current | |
| ● rated value | 80 A |
| ● at 40 °C / rated value | 80 A |
| ● at 45 °C / rated value | 80 A |
| ● at 50 °C / rated value | 80 A |
| ● at 55 °C / rated value | 80 A |
| ● at 60 °C / rated value | 80 A |
| ● at 65 °C / rated value | 80 A |
| ● at 70 °C / rated value | 80 A |
| Continuous current / of upstream fuse / at 500 V and 690 V / rated value | 250 A |
| Continuous current / of upstream fuse / at 1000 V / rated value | 250 A |
| Continuous current / of upstream molded case circuit breaker / at 415 V / rated value | 200 A |
| Operating current / at DC / rated value | 80 A |
| let-through current / of the fuse / at 500 V / maximum permissible | 25 700 A |
| let-through current / of the gG fuse / at 690 V / maximum permissible | 29 500 A |
| let-through current / of the aM fuse / at 690 V / maximum permissible | 32 900 A |
| let-through current / of the gG/aM SITOR fuse / at 1000 V / maximum permissible | 12 500 A |
| let-through current / of the molded case circuit breaker / at 415 V / maximum permissible | 28 000 A |
| let-through current / with closed switch | |
| ● at 690 V / for combination switch + aM fuse / maximum permissible | 17 600 A |
| ● at 690 V / for combination switch + gG fuse / maximum permissible | 23 700 A |
| ● at 415 V / for combination switch +molded case circuit breaker / maximum permissible | 21 700 A |
| ● at 1000 V / for combination switch +gG/aM SITOR fuse / maximum permissible | 10 795 A |
| ● for combination switch + fuse / at 400 V / maximum permissible | 27 700 A |
| ● for combination switch + fuse / at 500 V / maximum permissible | 27 700 A |
| Short-time withstand current (Icw) | |
| ● at 400 V AC / limited to 0.15 s / rated value | 15 kA |
| Main circuit |
| Operating power | |
| ● at AC-23 A / at 400 V / at 50/60 Hz / rated value | 45 kW |
| ● at AC-23 A / at 500 V / rated value | 55 kW |
| ● at AC-23 A / at 690 V / at 50/60 Hz / rated value | 75 kW |
| Operating current / rated value | 80 A |
| 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 | 4 |
| Number of NC contacts / for auxiliary contacts | 0 |
| Number of NO contacts / for auxiliary contacts | 0 |
| Suitability |
| Suitability for use | |
| ● Main switch | Yes |
| ● switch disconnector | Yes |
| ● EMERGENCY OFF switch | Yes |
| ● safety switch | Yes |
| ● maintenance/repair switch | Yes |
| Product details |
| product feature / interlock | No |
| Product component | |
| ● Trip indicator | No |
| ● Voltage trigger | No |
| ● undervoltage release | No |
| ● undervoltage release with leading contact | No |
| Product extension / Auxiliary switch | Yes |
| Product extension / optional | |
| ● motor drive | No |
| ● Voltage trigger | No |
| Short circuit |
| Short-time withstand current (Icw) / at AC 1000 V/DC 440 V / limited to 1 s / rated value | 4 kA |
| Short-circuit current making capacity (Icm) | |
| ● for switch disconnector / at 400 V AC / without fuse link / rated value / minimum | 30 kA |
| ● for switch disconnector / at 1000 V AC / without fuse link / rated value / minimum | 12 kA |
| ● for switch disconnector / at DC 440 V / without fuse link / rated value / minimum | 12 kA |
| ● for switch disconnector / without fuse link / rated value / minimum | 12 kA |
| Conditional short-circuit current / with line-side fuse protection | |
| ● at 415 V / by molded case circuit breaker / rated value | 65 kA |
| ● at 500 V / by gG fuse / rated value | 100 kA |
| ● at 690 V / by gG fuse / rated value | 100 kA |
| Connections |
| Type of connectable conductor cross-sections / for aluminum conductor | |
| ● stranded / with lug | 1x (10 ... 70 mm²) |
| Type of connectable conductor cross-sections | |
| ● for copper busbar | '1x (20x3 mm²) |
| Type of connectable conductor cross-sections / for copper conductor | |
| ● stranded / with lug / acc. to DIN 46235 | 1x (25 ... 70 mm²), 2x (25 ... 50 mm²) |
| Type of electrical connection | |
| ● for main current circuit | flat connector |
| Mechanical Design |
| Height | 168 mm |
| Width | 121 mm |
| Depth | 68 mm |
| Mounting type | Screw fixing and standard rail mounting 35 mm |
| |
| ● Mounting type / front mounting with 4-hole attachment | No |
| ● Mounting type / front mounting with central attachment | No |
| ● mounting type / rail mounting | Yes |
| mounting position | any |
| net weight | 1 017 g |
| Environmental conditions |
| Ambient temperature / during operation | |
| ● minimum | -25 °C |
| ● maximum | 70 °C |
| Ambient temperature / during storage | |
| ● minimum | -50 °C |
| ● maximum | 80 °C |
| Certificates |
| |
| ● reference code / acc. to DIN EN 61346-2 | Q |
| ● Reference code / acc. to DIN EN 81346-2 | Q |
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