Digital voltage control relay | 3F | 8A | 70-400V | IP40

Technical Specifications:

Function: 3-phase voltage monitoring
Voltage range (Un): 127V, 132V, 138V, 220V, 230V, 240V, 254V, 265V (P-N)
Nominal supply frequency: 45Hz - 65Hz
Supply voltage limits: 70V - 400V
Measurement error: ≤1%
Hysteresis: 2%
Phase failure: 50% of the selected Un value
Time deviation: ≤5%
Temperature coefficient: 0.05%/°C (20°C)
Output: 2×SPDT (with switching contacts)
Current rating: 8A (AC1)
Voltage switching capacity: 250VAC / 24VDC
Min. break power DC: 500mW
Operating temperature: -20°C to +55°C
Storage temperature: -35°C to +75°C
Mounting: DIN rail EN/IEC 60715
Protection degree: IP40 front panel, IP20 connection terminals
Maximum wire size (mm²): 1x2.5mm² or 2x1.5mm² (with sleeve)
Torque: 0.4Nm
Dimensions: 90 × 36 × 64 mm
Weight: 100g
Usage: This device is designed to monitor the 3-phase voltage level and provide protection against dangerous voltage fluctuations. It can be used in various locations where phase loss protection, reverse starting, and control of equipment such as agricultural machinery, refrigerators, and moving equipment are required. Additionally, it can switch supply sources (emergency) and protect against high or low voltage risks.

Pros:

Protection against high and low voltage: Protects equipment and people from voltage fluctuations that could cause damage.
LCD display: Convenient digital display showing the voltage level and device status readings.
Wide voltage range: The wide voltage limits (70V - 400V) allow use in various devices.
Phase failure detection: Detects and protects against phase failures, which is crucial in industrial systems.
Adjustable voltage and hysteresis: Ability to set parameters according to specific needs.
Overheat protection: Depends on temperature and ensures safety in higher temperatures.
DIN rail mounting: Convenient installation according to standards.
Cons:

Limited power: 8A current limits may be insufficient for higher-power equipment.
Simple design: Lacks additional smart features or connectivity options such as Wi-Fi or mobile app support.
Protection degree: IP40 protection limits its use to dry indoor areas, making it unsuitable for outdoor or damp environments.