Voltage control and phase sequence protection relay | three-phase | with automatic imbalance detection | 8A | 3x220-480VAC | IP20 | FRV13 2

Functions and Features:

Three-Phase Voltage Monitoring: The relay can monitor the voltage level across all three phases simultaneously, ensuring reliable protection against phase imbalance, voltage spikes, or drops.

Phase Sequence Control: Protects against incorrect phase connections or phase loss, which is particularly important for the operation of motors and other three-phase devices.

Overvoltage and Undervoltage Protection: The relay automatically disconnects the system when dangerous voltage fluctuations are detected, ensuring the protection of connected devices from potential damage.

Adjustable Parameters: The voltage control limits can be set, such as the minimum and maximum permissible voltage and response time.

Easy Installation: The relay is mounted using a DIN rail bracket, allowing for quick and convenient integration into industrial panels and electrical control systems.

Range Adjustment: The user can adjust the detection range, including overvoltage and undervoltage levels, to ensure proper protection under specific conditions.

Application Areas:

Industrial electrical systems
Protection of three-phase motors
Electrical distribution and protection systems
Control and monitoring of industrial equipment
Protection solutions for electrical network disturbances
Complies with Standards: EN/IEC 60730-1, EN/IRC 60730-2-7

Phase Count: L1, L2, L3

Supply Voltage Un, V: 208/220/230/240/380/400/415/440/460/480

Nominal Frequency, f, Hz: 50/60

Operating Voltage Range, AC/V: 165-528

U> set value, V: (105%-125%)xUn
U< set value, V: (75%-95%)xUn
Asymmetry setting: Adjustable 5%20%, fixed 8%
U> switching delay, s: Adjustable 0.110, fixed 2
U< switching delay, s: Adjustable 0.1~10, fixed 2
Switching delay time for incorrect phase sequence or phase loss, s: ≤0.5

Error holding tolerance: ±10%+0.1
Hysteresis: Fixed 2%
Adjustment knob tolerance: 1% x scale value

Output Contacts: 1 C/O

Current values AC1, A/V: 8/250

Insulation Voltage Ui, V: 415

Protection Degree: IP20
Pollution Degree: 3
Wear resistance (electrical/mechanical): 105/106

Connecting conductor cross-section, mm²: 0.5 ... 2.5
Screw tightening torque, Nm: 0.5
DIN rail mounting: TN 35
Altitude above sea level, m: 2000
Operating temperature range, °C: -5 ... +40
Storage temperature, °C: -10 ... +50

This voltage monitoring relay is a reliable solution for electrical systems that require constant voltage monitoring and ensuring proper phase balance.