Catalogue / SF6 circuit breakers
SF6 live tank circuit breaker, Max 7 seriesSample
by Tungabhadra HV Switchgear (Sample) · verified by BARREL
Price for verified buyers
Ordered and invoiced through BARREL — one contract, one GST invoice.
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SF6 live tank circuit breaker from Tungabhadra, Max 7 series: 6 system voltage options between 36 kV and 800 kV. Key features: low SF6 leakage < 0.5% per year, density monitor with two stage alarm and corrosion-proof control cabinet. Suited to transmission lines, industrial EHV supply and generator bays. Designed and tested to IEC 62271-100, IS 13118 and IEC 62271-1. Lead time 12-16 weeks; delivers to All India and export (SAARC, Middle East, Africa). Sample listing: illustrative data for testing BARREL Shop, not a real offer.
- Brand
- Tungabhadra
- Model
- TUN-786 series
- Listing type
- Product
- Unit
- nos
- Minimum order
- 10 nos
- Lead time
- 12-16 weeks
- Warranty
- 24 months from commissioning
- Standards
- IEC 62271-100, IS 13118, IEC 62271-1
- Delivers to
- All India and export (SAARC, Middle East, Africa)
- GST rate
- 18 %
- Country of origin
- India
- Packaging
- Drum / reel with end caps
- Delivery terms
- FOR site, freight included
- Returns
- Returns within 15 days if unused, in original packing
- Other terms
- Sample data for testing; not a real offer.
Variants
| Variant | Specifications | Min. order · lead time | Price, ex GST |
|---|---|---|---|
| System voltage36 kVTUN-786-01 | System voltage: 36 kV | 10 nos · 12-16 weeks | for verified buyers |
| System voltage72.5 kVTUN-786-02 | System voltage: 72.5 kV | 10 nos · 12-16 weeks | for verified buyers |
| System voltage145 kVTUN-786-03 | System voltage: 145 kV | 10 nos · 12-16 weeks | for verified buyers |
| System voltage245 kVTUN-786-04 | System voltage: 245 kV | 10 nos · 12-16 weeks | for verified buyers |
| System voltage420 kVTUN-786-05 | System voltage: 420 kV | 10 nos · 24-30 weeks | for verified buyers |
| System voltage800 kVTUN-786-06 | System voltage: 800 kV | 10 nos · 24-30 weeks | for verified buyers |
Specifications
| System voltage | 36 kV to 800 kV (see variants) |
|---|---|
| Rated current | 3150 Amade to order: 1250 A / 2000 A / 4000 A |
| Breaking current | 50 kAmade to order: 25 kA / 31.5 kA / 40 kA |
| Operating mechanism | Spring-springmade to order: Hydraulic spring |
| Operation | Single-pole |
| Interrupter | Two breaks |
| SF6 pressure | 0.6 MPa abs |
| Duty cycle | O-0.3s-CO-3min-CO |
| Close time | < 100 ms |
| Insulator | Composite |
| Auxiliary supply | 220 V DCmade to order: 110 V DC |
| Creepage | 31 mm/kV |
| Mechanical endurance | M2 |