| Merek | ROCKWILL |
| Seri | RHB |
Equipped with CT-type spring mechanism, this outdoor live tank SF₆ breaker serves 50Hz three-phase grid for circuit control and protection, allowing single/three-pole switching and auto-reclosing.
With three-phase post porcelain structure and self-blast arc extinction, SF₆ fills all poles for insulation and arc quenching. Pointer density relay tracks gas status. Compact, low-power, low-noise and easy to install; customization supported.
Three-phase post porcelain construction: Single shared spring mechanism for synchronized three-pole operation, neat compact layout for outdoor installation.
Integrated SF₆ gas system: Interconnected gas chambers across three poles; SF₆ serves as insulation & arc-quenching medium to guarantee steady performance.
Pointer density relay: Real-time SF₆ pressure & density monitoring for early fault warning and safe running.
Self-blast arc extinction: Lower required operating power and improved mechanical efficiency.
Customization available: Tailored design to satisfy individual project requirements, consult our sales team for details.
RHB-252
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 252 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 460 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 530 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1050 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 1200 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30~+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | <5 |
| Annual SF₆ leakage rate | — | <0.5% |
| Maintenance cycle | Year | 30 |
RHB-420
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 420 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 740 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 850 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1425 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 1550 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30~+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | <5 |
| Annual SF₆ leakage rate | — | <0.5% |
| Maintenance cycle | Year | 30 |
RHB-550
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 550 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 830 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 950 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1675 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 2125 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30~+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | <5 |
| Annual SF₆ leakage rate | — | <0.5% |
| Maintenance cycle | Year | 30 |
Ambient temperature: -30℃~+40℃
Altitude: <1000m
Max wind speed: <34m/s
Daily temperature variation: <25℃
Solar irradiance: <0.1W/cm²
Monthly average RH: <90%
Ice coating: <10mm
Seismic resistance: Horizontal<0.2g, Vertical<0.1g
Mounting: Outdoor
RHB-245

Seri produk LW10B \ lLW36 \ LW58 dalam buku sampel adalah pemutus sirkuit SF₆ tiang porselen berdasarkan peningkatan seri ABB'LTB, dengan cakupan tegangan 72.5kV-800kV, menggunakan teknologi pemadam busur Auto Buffer ™ self powered atau teknologi pemadam busur vakum, integrasi mekanisme operasi penggerak pegas/motor, mendukung berbagai layanan kustomisasi, mencakup level tegangan lengkap 40.5-1100kV, dengan desain modular yang luar biasa dan kemampuan kustomisasi yang kuat, cocok untuk proyek yang membutuhkan adaptasi fleksibel terhadap arsitektur jaringan listrik yang berbeda. Dibuat di Cina, dengan kecepatan respons layanan global yang cepat, efisiensi logistik yang tinggi, dan keandalan tinggi dengan harga yang wajar.