Wenzhou Kinee Electrical Co., Ltd. is one of the most reliable manufacturers and suppliers of 3 way single phase power transfer switch in China. We warmly welcome you to wholesale 3 way single phase power transfer switch for sale here from our factory. All customized products are with high quality and competitive price.
Product Introduction
The KNS5-3S/1X three-display dual-power transfer switch is suitable for AC 50/60Hz circuits with an operating voltage of AC230V. This intelligent transfer switch features three displays and automatic voltage adjustment to ensure household electrical safety and protect family members from potential hazards. It is widely used in home appliances, factories, and similar applications.
The product features automatic switching, adjustable values, and priority phase sequence. As a 3 Way single phase power transfer switch, it automatically checks the voltage in the circuit and switches to the usable circuit when the voltage is too high or too low. When the original circuit voltage returns to normal, this 3 Way single phase power transfer switch switches back to the original circuit. This product has a compact structure and attractive appearance and can be installed parallel with MCB series products.
The product conforms to standards: JBT 12762, JGJ242-2011. For applications requiring a reliable 3 Way single phase power transfer switch, the KNS5-3S/1X offers an ideal solution.
Product Description
1. Automatic Transfer Switch:with "Priority" phase
2. Microcontroller based
3.Parameter setting by knobs
4.Overvoltage and undervoltage protection
5.Overcurrent protection
6.LED indication for operating voltage
7.Din-rail mounting
8.Net weight: 378g
9.Size:90*96*66mm(W*L*H)
Function
1.Over-voltage protection
2.Under-voltage protection
3.Over-current protection
4.Voltage display(voltage measurement)
5.Current display (current measurement)
6. Voltage calibration: Voltage +-9.5% adjustable.
7. Current calibration: Current +- 9.5% adjustable
Main Technical Parameters
| Parameter | Value |
| Supply terminals | N, L1, L2, L3 |
| Rated supply voltage | AC 3 * 220V (N-L1/L2/L3) |
| Rated frequency | 40/50/60/70Hz |
| Umax setting range | 230-300V |
| Umin setting range | 140-210V |
| Auto-reclosing delay (Ton) | 1-600s |
| Return delay to priority phase | 1-600s |
| Switch delay to reserve phases | <0.2s |
| Voltage hysteresis | 5V |
| Overvoltage trip delay | 0.1s; ≥350V: 0.02s |
| Undervoltage trip delay | 0.1s; ≥350V: 0.02s |
| Voltage accuracy | <1% |
| Max. operating phase voltage | 350V |
| Rated operating current | 63A/80A/100A |
| Max. operating current | 63A/80A/100A |
| Pollution degree | 3 |
| Electrical life | 10⁵ |
| Mechanical life | 10⁶ |
| Altitude | ≤2000m |
| Ambient temperature | -25℃~+50℃ |
| Permissible relative humidity | ≤50% at 40℃ (without condensation) |
| Storage temperature | -25℃~+55℃ |
| Conductor size | 0.5mm²~1mm² |
Front Panel Function Introduction
Dimensions
