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Control and protection electrical appliances and terminal electrical appliances
WHKB1G-125 Series Disconnector Switch
WHKB1G-125 series isolating switch is suitable for power distribution and control circuits with AC 50HZ and rated working voltage of 400W and below. It is mainly used as the main switch of terminal electrical appliances and is also suitable for controlling various motors, low-power electrical appliances and lighting, etc.; It is widely used in industrial and mining enterprises, high-rise buildings, commercial and family places.
Product Details
Model and Meaning
Technical Specifications
Appearance and dimensions
WHKB1G-125 series isolating switch is suitable for power distribution and control circuits with AC 50HZ and rated working voltage of 400W and below. It is mainly used as the main switch of terminal electrical appliances and is also suitable for controlling various motors, low-power electrical appliances and lighting, etc.; It is widely used in industrial and mining enterprises, high-rise buildings, commercial and family places.
| WHK | B1 | G | — | 125 | / | ☐ | ☐ |
|---|---|---|---|---|---|---|---|
| Enterprise code | Design serial number | Isolating switch | Shell frame grade | Number of poles | Rated current |
◆ Main specifications and parameters
|
Rated operating voltage (V) |
Rated current (A) |
Rating Short-break switching capacity (Icm) |
Rating Short-time withstand current (Icw) |
Rating Fuse short circuit current (KA) |
|---|---|---|---|---|
|
230 400 |
32、63、80、100、125 | 3kA | 1.5 kA/ls | 20 |
◆ The number of product poles is divided into: monopole, dipole, tripole, quadrupole
◆ Power frequency withstand voltage: After moisture and heat resistance, the switch can withstand the 2500V power frequency withstand voltage test for 1 minute without insulation flashover and breakdown
◆ Mechanical and electrical life: Mechanical life is 20000 times, electrical life is 6000 times
2. Structural characteristics
The contact system of isolating switch adopts double breakpoint direct action structure, and two groups of flat contacts are connected in parallel for large current, which not only increases the current capacity, but also makes full use of electric compensation. At the same time, the handle operating mechanism uses spring energy storage to realize rapid on-off, which overcomes the influence of manual operation speed and greatly improves the reliability of work. The opening and closing state of the contact has an eye-catching color standard display, which can prevent misoperation and improve safety.
◆ Complies with standards: GB 14048.3, IEC 60947-3
◆ Operating temperature:-25 ℃ + 60 ℃, the average temperature within 24 hours does not exceed + 35 ℃
◆ Altitude: ≤ 2000m
◆ Atmospheric conditions: The relative air mixture at the installation site is ≤ 50% at + 40 ℃, and the maximum is 90%
