Schneider MicroLogic Vigi 4.2 Under-voltage Release, is an electronic circuit breaker designed for the ComPacT NSX250 circuit breaker, with built-in differential protection and advanced adjustments to ensure safety and efficiency in electrical systems. Ideal for industrial and tertiary applications, with the following features:
Number of poles: 4P
Rated current: 250 A
Rated operating voltage: 460V AC 50/60 Hz
Mains type: AC
Switch mounting: Fixed
Differential protection type: Class A
Electrical protection class: Class II
Pollution degree: 3
Degree of protection: IP40
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The MicroLogic Vigi 4.2 releaser has 9 levels of adjustable thermal protection (Ir) to suit the needs of the system. Short delay protection Isd is adjustable, while instantaneous protection Ii is fixed, ensuring quick intervention in case of overloads or short circuits.
The MicroLogic Vigi 4.2 offers Class A differential protection, which detects both alternating and pulsating unidirectional fault currents. This makes it ideal for applications where high safety against electrical leakage is required.
With its protection class II and pollution degree 3, the MicroLogic Vigi 4.2 is suitable for installations in industrial and tertiary environments, ensuring reliable performance even under harsh operating conditions.
The circuit breaker is designed for fixed mounting on 4-pole ComPacT NSX250 circuit breakers, with the neutral positioned on the left. The rated operating voltage is 460 VAC, with mains frequency 50/60 Hz.
| Feature | Value |
|---|---|
| Number of poles | 4P |
| Rated current | 250 Amps |
| Rated operating voltage | 460 VAC 50/60 Hz |
| Mains type | AC |
| Mains frequency | 50/60 Hz |
| Neutral position | Left |
| Switch mounting | Fixed |
| Thermal protection adjustment (Ir) | 9 adjustable values |
| Short delay protection (Isd) adjustment | Adjustable |
| Short delay protection timing (tsd) | Fixed |
| Instantaneous protection setting (Ii) | Fixed |
| Differential protection | Integrated |
| Differential protection type | Class A |
| Electrical protection class | Class II |
| Pollution degree | 3 |
| Degree of protection | IP40 |
| Operating environment temperature | -25°C / +70°C |
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