Products
Products
Installation & Application（安装应用） The NKP-DY-SY-06 dual-power automatic voltage monitoring and delayed transfer switch is designed for critical facilities requiring uninterrupted power supply, including hospitals, airports, chemical plants, metallurgical facilities, data centers, and telecom equipment rooms. When both the main power source (Circuit 1) and backup power source (Circuit 2) are energized with voltages within normal range, the switch preferentially connects the main power to the output. If the main power voltage exceeds normal range or fails, the unit automatically switches to backup power output. Upon restoration of main power with voltage remaining within normal range for 120 continuous seconds, automatic transfer back to main power occurs, ensuring continuous and uninterrupted operation of electrical equipment.
Product Dimension Drawing
Product Wiring Diagram
接线注意:
1、仅有单路供电时请连接第一路输入双路供电时第一路优先接通输出。
2、两组输出内部并接，任意选接，合计电流为6A(AC)。
3、遥信输出为光耦接点，负载电流≤10mA。
Product Dimensional Drawing
Technical Parameters（技术参数） Electrical Parameters:
Rated Voltage (Un): Dual-input AC 220V ±20%
Rated Current (In): Total output current 6A ±10% (dual-terminal)
Operation Logic:
Normal Mode: When both power sources are energized within normal voltage range, prioritizes Main Power (Circuit 1) after 120s delay
Failure Mode: Automatically transfers to Backup Power (Circuit 2) if Main Power voltage exceeds range or fails
Recovery Mode: Reverts to Main Power after 120s stable voltage; Backup Power requires same 120s validation
Transfer Time: ≤20ms
Breaking Capacity: 1800VA
Isolation Characteristics:
Complete isolation between:
✓ Dual AC inputs
✓ Inputs and output circuits
Dielectric Strength (50Hz, 60s):
Static Isolation (Input-Input): 2500VAC between L1/N1 (Main) and L2/N2 (Backup), leakage ≤10mA
Static Isolation (Main-Output): 2500VAC between L1/N1 and LO/NO, leakage ≤10mA
Static Isolation (Backup-Output): 2500VAC between L2/N2 and LO/NO, leakage ≤10mA
Environmental & Indicators:
Operating Temperature: -40°C to +70°C
Status Indicators:
✓ Dual input indicators (active power source)
✓ Run status LED
✓ Fault LED (input voltage loss)
Remote Signaling: Dry contact (OUT) closes upon any input failure
Mechanical:
Dimensions: 115.0 × 90 × 72.0mm
Ordering and Model Selection（订货选型） *Please send the inquiry email containing specific product requirements (such as model, quantity, technical parameters, etc.) to the designated email address salina@kejia.com.
（请将包含具体产品需求（如型号、数量、技术参数等）的询价邮件发送至指定邮箱 salina@kejia.com）
