Isolation Performance
The visible break blade design provides clear open/closed position indication for operational safety. High-quality copper alloy contacts with wiping action ensure low contact resistance and reliable current transfer.
Post-type disconnectors offer reliable visible circuit isolation for overhead lines and substations, with manual or motorized single-phase and three-phase configurations.
WANGYUAN Post-type Disconnector are designed for visible circuit isolation on overhead distribution lines and substations. Made of high-strength ceramic insulators or composite silicone rubber with hot-dip galvanized steel frames and copper alloy contacts, the robust blade-type switching mechanism ensures reliable make-break operation under load conditions. Available in single-phase and three-phase configurations with manual or motorized actuation, all products comply with relevant international standards, widely deployed in utility pole-mounted and substation isolation applications.

| Type | L | W | H |
|---|---|---|---|
| (H)GW-12(15) | 1530 | 675 | 730 |
| (H)GW-24(27) | 1730 | 750 | 860 |
| (H)GW-30(36) | 1885 | 820 | 990 |

| Type | L | W | H |
|---|---|---|---|
| (H)RGW-12(15) | 1530 | 675 | 1510 |
| (H)RW-24(27) | 1730 | 750 | 1510 |
| (H)RGW-30(36) | 1885 | 820 | 1510 |

Technical characteristics
| Item | Unit | Data | ||
|---|---|---|---|---|
| Rated voltage | kV | 12 | 24 | 36 |
| Rated frequency | Hz | 50/60 | ||
| Rated current | A | 100/200/400 | ||
| Rated short-circuit withstand/ breaking current | kA | 12.5 | ||
| Rated short-circuit making current (peak) | kA | 32 | ||
| Rated peak withstand current | kA | 32 | ||
| Rated short-circuit time | Sec | 1 | ||
| Mechanical Operations | Times | 5000 | ||
| Power frequency withstand voltage (1 min) | kV | 28/32 | 50/60 | 70/80 |
| Lightning impulse withstand voltage (peak) | kV | 76/85 | 125/145 | 170/195 |
| Item | Unit | Data | |||
|---|---|---|---|---|---|
| For active circuits | 20breakings | A | 630 | 630 | 400 |
| 30breakings | 400 | 400 | 300 | ||
| 40breakings | 300 | 300 | 250 | ||
| 50breakings | 250 | 250 | 170 | ||
| 75breakings | 170 | 170 | 160 | ||
| 120breakings | 110 | 110 | 110 | ||
| 200breakings | 65 | 65 | 65 | ||
| 280breakings | 50 | 50 | 50 | ||
| For ring circuits | A | 630 | 400 | 250 | |
| Rated breaking capacity of transformer | A | 50 | |||
| Rated breaking capacity of cable charging | A | 11 | |||
| Rated breaking capacity of earthing fault | A | 56 | |||
Note: The LBS type on load break switch (Switch disconnector) is equipped with stored energy released by fuse strike pins.
The stored energy mechanism for the opening oparation is released by fuse strike pins.
The trip actuator is mounted on top of the fuse contact clip.
The DIN type fuse is held in spring type contacts, secured by a tailever. All the components are made of stainless steel, to preventcorrosion have Jong live, and in the rest position. The trip lever is parked in an over-centre position.
Electric parameter:
Rated voltage: 12kV-24kV-36kV
Rated current: 630A-1250A
Power frequency withstand: 42/65/95kV
Lighting impulse withstand voltage: 95/150/215kV
Short circuit withstand: 20/25kA

| Type | C | D | F | H | L | W |
|---|---|---|---|---|---|---|
| LBS-12 | 800 | 1080 | 1200 | 670 | 775 | 1100 |
| LBS-24 | 900 | 1180 | 1200 | 770 | 450 | 1400 |
| LBS-36 | 1000 | 1280 | 1200 | 870 | 700 | 1900 |
The visible break blade design provides clear open/closed position indication for operational safety. High-quality copper alloy contacts with wiping action ensure low contact resistance and reliable current transfer.
Hot-dip galvanized steel frames and mounting brackets withstand severe mechanical loads and short-circuit forces. Ceramic insulators offer high compressive and cantilever strength for long-term structural integrity on poles.
Ceramic insulators with glazed surface resist tracking, erosion and UV degradation in outdoor environments. Hot-dip galvanized steel components provide decades of corrosion protection in harsh climatic conditions.
Compact post-type design simplifies pole mounting with standard bracket interfaces. Motorized actuator option enables remote SCADA-controlled operation, supporting both single-phase and three-phase line configurations.
