Numerical Voltage Protection Relay (Draw out) : CSENEX-U 200

PRO range of relays provide reliable and high-performance protection.

The CSENEX-U 200 is a relay for AC voltage supervision with universal application, it protects the three-phase network against over, under voltage, unbalance or earth faults in isolated networks. Beside the pure RMS value measurement of the line voltage the CSENEX-U 200 can detect the phase sequence, voltage unbalance and earth faults.

The IRU-PRO is a relay for AC Voltage supervision with universal application, it protects the three-phase network against over, under voltage, unbalance or earth faults in isolated networks. Beside the pure RMS value measurement of the line voltage the IRU-PRO evaluates the symmetrical components (U1, U2 & U0 sequence system). By evaluating these components relay IRU-PRO can detect the phase sequence, voltage unbalance and earth faults.

• CSENEX-U 200 safeguards expensive electrical devices, motors, transformers and appliances from damage caused by voltage fluctuations (overvoltage and undervoltage).
• Overvoltage can damage insulation and cause equipment burnout, while undervoltage causes motors to draw too much current, resulting in overheating and damage. NEX-U 200 relay instantly disconnects the circuit to prevent these issues.

• When equipment operates under safe and optimal voltage conditions, CSENEX-U increase the longevity of connected devices, reducing the frequency of costly repairs.
• Enhanced Safety and Risk Reduction
• The relay’s automatic and fast tripping action localises the fault and minimises the duration of system disruption.
• Recording detailed information about fault events (time, duration, voltage waveform).
• Allowing the system to automatically re-energise after a set time once the voltage returns to normal limits.
• For three-phase systems, CSENEX-U200 often provide additional benefits like protection against phase loss, phase reversal, and phase imbalance, which are critical for the safe operation of three-phase motors.