Description
Under Voltage Trip Device Function
The under voltage trip device is used to automatically disconnect the circuit breaker when the supply voltage drops below a set threshold, preventing equipment from being damaged due to operating at low voltages.
Working Principle
When the voltage drops to a set value (such as 70% – 35% of the rated voltage), the coil of the trip device loses its magnetism, triggering the circuit breaker to trip.
Application Scenarios
- Protecting sensitive equipment (such as motors, PLCs, frequency converters) from the impact of voltage fluctuations.
- Places with high requirements for power system stability (such as data centers, hospitals).
- Cooperating with automatic reclosing to achieve automatic restart after fault recovery.
Technical Parameters
- Rated voltage: Consistent with the rated voltage of the circuit breaker (e.g., AC 230V/400V).
- Action threshold: Adjustable range (e.g., 50% – 90% Un).
- Recovery method: Automatic recovery (delayed closing after voltage recovery) or manual reset.
- Installation method: Connect to the circuit breaker body through a plug – in or screw – fixed type.
FAQ
What is the CONTROL VOLTAGE for
For MN 100A-1600A, the listed CONTROL VOLTAGE is AC 220V-240V / DC 24V(UC). Confirm the exact configuration against your project requirements before ordering.
What is the INRUSH POWER for
For MN 100A-1600A, the listed INRUSH POWER is MX200VA / MN: 10VA. Confirm the exact configuration against your project requirements before ordering.
What is the OPERATING THRESHOLD for
For MN 100A-1600A, the listed OPERATING THRESHOLD is MX: 70%-110% Uc / MN: 35%-70% Uc. Confirm the exact configuration against your project requirements before ordering.
What is the STANDARD for
For MN 100A-1600A, the listed STANDARD is IEC 60947-2, CE. Confirm the exact configuration against your project requirements before ordering.