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| Categories | Vacuum Interrupter |
|---|---|
| Place of Origin: | China (Mainland) |
| Brand Name: | ERFA |
| Certification: | ISO9000 |
| Model Number: | ERFA-V12 |
| MOQ: | 1 unit |
| Price: | Negotiated |
| Packaging Details: | each piece with polly then 18pcs in a woodenbox with pallet |
| Delivery Time: | 10 days after payment |
| Payment Terms: | T/T |
| Supply Ability: | 10000pcs per month |
| Rated current: | 1600A 1250A |
| Rated duration of short-circuit: | 4S |
| Rated peak withstand current: | 60KA |
| Weight of movable parts: | 1.4KG |
| Contacts limit erosion: | 3MM |
| Certificate: | ISO9000 |
| Company Info. |
| ERFA Industries Group |
| View Contact Details |
| Product List |
Specification
| 1 | Rated current | A | 1600 | 1250 |
| 2 | Circuit resistance at lowest rated contact force | μΩ | ≤20 | |
| 3 | Rated short-circuit breaking current | KA | 31.5 | |
| 4 | Breaking operations of rated short circuit breaking current | Times | 50 | |
| 5 | Rated short-time withstand current | KA | 31.5 | |
| 6 | Rated duration of short-circuit | S | 4 | |
| 7 | Rated peak withstand current | KA | 60 | |
| 8 | Rated short-circuit making current | KA | 60 | |
| 9 | Rated breaking current of single capacitor bank | A | 630 | |
| 10 | Rated breaking current of back-back capacitor bank | A | 400 | |
| 11 | Rated operating sequence | O-0.3s-CO-180s-CO | ||
Mechanical data
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Mechanical requirements
| 1 | Clearance between open contacts | mm | 11±1 |
| 2 | Average opening speed(average of first 75% of contact gap) | m/s | 1.1±0.2 |
| 3 | Average closing speed(average of last 30% of contact gap) | m/s | 0.6±0.2 |
| 4 | Rated added external contact final force | 3100±200 | |
| Added external contact force at contact touch point | N | 2200±150 | |
| 5 | Contact bouncing duration at closing operation | ms | ≤2 |
| 6 | Closing and Opening non-simultaneity of three-phase contacts | ms | ≤2 |
| 7 | Maximum Rebound during opening | mm | ≤2 |
Life
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