Product Overview
Based on ATST Electric’s core concept of “Precise Control, Safe and Reliable”, GKRC-02/GKRC-02F/GKRC-02FA Over and Under Voltage Protection Relays provide reliable voltage monitoring and protection solutions for modern electrical systems.
The relay continuously detects the power supply voltage and identifies abnormal conditions such as excessive voltage increase or insufficient voltage level. When the measured voltage exceeds or falls below the preset protection range, the device can disconnect the load or provide a protection signal to prevent electrical equipment from operating under unsafe conditions.
Designed for low-voltage distribution applications, GKRC series relays combine accurate monitoring, reliable protection and convenient installation. They are suitable for distribution boards, control cabinets and electrical protection systems where voltage stability is essential.
Main Features
1. Over-voltage protection: Monitors excessive voltage conditions and helps prevent damage caused by voltage surges or unstable power supply.
2. Under-voltage protection: Detects low voltage conditions and protects electrical equipment from abnormal operation caused by insufficient voltage.
3. Real-time voltage monitoring: Continuously checks system voltage status to improve electrical safety and reliability.
4. Automatic protection control: Provides fast response when voltage abnormalities occur and helps reduce equipment failure risks.
5. Adjustable protection settings: Allows users to configure protection parameters according to different application requirements.
6. Reliable switching performance: Provides stable relay output for load control and protection circuits.
7. Compact modular structure: Suitable for DIN rail installation in distribution boxes, electrical panels and control cabinets.
8. Wide application compatibility: Designed for various low-voltage electrical systems, household appliances and industrial equipment.
Application Scenarios
1. Residential power protection: Used in home distribution boxes to protect appliances from unstable voltage conditions.
2. Commercial building systems: Suitable for offices, shopping malls, hotels and public facilities requiring reliable voltage protection.
3. Industrial equipment protection: Applied to motors, machines and automation equipment sensitive to voltage fluctuations.
4. Electrical distribution panels: Installed in low-voltage distribution systems to improve power supply safety.
5. Pump and motor systems: Helps protect pumps, fans and motors from damage caused by abnormal voltage.
6. HVAC systems: Suitable for air conditioners, ventilation equipment and cooling systems requiring stable voltage operation.
7. Automation control systems: Used in industrial control cabinets and electrical panels to improve equipment reliability.
Technical Date
| Supply voltage (Un) | 220, 230VAC |
| Power consumption | 30VA /2W (50Hz.) |
| Supply frequency | 48~63Hz(GKRC-02/GKRC-02F) 50/60Hz(GKRC-02FA) |
| Operating Temperature | -5°C~+55°C |
| Output Type | 1 inverter, 8A, 250V, 2000VA (Cosφ=1) |
| Over voltage setup(Umax) | 240~300VAC(GKRC-02/GKRC-02F) 410~510VAC(GKRC-02FA) |
| Under voltage setup(Umax) | 150~210VAC(GKRC-02/GKRC-02F) 270~370VAC(GKRC-02FA) |
| Hysteresis(for Umax and Umin) | Un x 3%(constant) |
| Delay-Off(Delay) | 0.1~20sec(0.1~60sn. and 0.1~180sn.Manufactured if demanded) |
| Delay-On(Reset Delay) | 0.1~20sec(0.1~60sn. and 0.1~180sn.Manufactured if demanded) |
Wiring Diagram
Dimensions
