With its exceptional breaking capacity of 31.5kA, this product ensures quick and safe interruption of short-circuit currents.
Featuring a ceramic corrugated casing, TD-12/1250-31.5C is specifically designed for seamless integration with the VS1 application. The robust ceramic shell not only provides durability but also offers high insulation performance, ensuring optimal protection for internal contacts.
Capable of handling a maximum current rating of 1600A, this product is built to withstand normal operational demands. With a lifespan of up to 10,000 operations, TD-12/1250-31.5C boasts low maintenance costs, making it a cost-effective choice for your electrical infrastructure.
Ensuring environmental friendliness, this product employs true arc extinguishing technology, leaving no impact on the surrounding environment. Its compact design accommodates the size requirements of VS1 and other compatible equipment, making installation hassle-free.
Size: Φ98 mm*275 mm
Rated Frequency: 50 Hz
Rated Voltage: 12 kV
Rated Current: 1600A/1250 A/630A
Rated Short-circuit Breaking Current: 31.5 kA
Lighting Impulse Withstand Voltage (Peak): 85 kV
| MAIN TECHNICAL DATA | TYPE | |||
| TD-12/1600-31/5C | ||||
| VOLTAGE RATINGS AT RATED CONTACT STROKE | ||||
| Rated Frequency | HZ | 50 | ||
| Rated Voltage | kV | 12 | ||
| Short-time(1min)Power-frequency Withstand Voltage | kV | 48 | ||
| Lighting Impulse Withstand Voltage(Peak) | kV | 85 | ||
| CURRENT RATINGS | ||||
| Rated Current | A | 1600 | 1250 | 630 |
| Rated Short-circuit Breaking Current | kA | 31.5 | 31.5 | 31.5 |
| Rated Short-time Withstand Current | kA | 31.5 | 31.5 | 31.5 |
| Rated Peak Withstand Current | kA | 80 | 80 | 80 |
| Rated Short-circuit Making Current | kA | 80 | 80 | 80 |
| Rated Single Capacitor Bank Breaking Current | A | 630* | ||
| Rated Back-to-back Capacitor Bank Breaking Current | A | 400* | ||
| Rated Duration of Short-circuit | s | 4 | ||
| Circuit Resistance at Min. Rated Contact Force | μΩ | ≤ 13 | ||
| MECHANICAL DATA | ||||
| Contact Close Force Due to Bellows and Atmosphere | N | 90 ± 40 | ||
| Counter Force of Contact at Full Stroke | N | 180 ± 40 | ||
| Mass OF Moving Parts | kg | 1 | ||
| LIFE | ||||
| Mechanical Endurance | Times | 10000 | ||
| Contact Limit Erosion | mm | 3 | ||
| Switching Operations of Rated Short-circuit Breaking Current | Times | 30 | ||
| Shelf Life | Years | 20 | ||
| Internal Gas Pressure | Pa | ＜1.33 × 10-3 | ||
| RATED OPERATING SEQUENCE | O-0.3s-CO-180s-CO | |||
| MECHANICAL DATA OF VACUUM SWITCH EQUIPPED WITH THE INTERRUPTERS | ||||
| Average Opening Speed(first 6mm） | m/s | 1.1 ± 0.2 | ||
| Average Closing Speed(last 6mm) | m/s | 0.6 ± 0.2 | ||
| Contact Bounce Duration at Closing Operation | ms | ≤ 2 | ||
| Clearance Between Open Contacts | mm | 11 ± 1 | ||
| Out of Simultaneity of Contact Closing and Opening | ms | ≤ 1 | ||
| Rated Contact Pressure | N | 3000+3000 | ||
| Added External Contact Force at Contact Touch Point | N | 2100+2000 | ||
| Maximum Rebound During Opening | mm | ≤ 2 | ||
| Note 1:Meets or exceeds the electrical endurance requirements of calss E2 per IEC 62271-100 and GB 1984-2014. Note 2:"*"Rated insulation values require external insulation, such as SF6,transformer oil or solid dielectric material etc. Note 3:"★"Rated characteristics to be given on request. Note 4:In order not to damage the metal bellows, the movable stem should be prevented from rotation when assembling. For more requirements please check the instructions of Usage. | ||||
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