FR-A540-3.7K

The Mitsubishi FR-A540-3.7 K is a versatile solution for managing motor control systems. This inverter operates within the 400V class, making it suitable for many industrial applications. It supports a motor capacity of 3.7 kW and a rated capacity of 6.9 kVA. Under normal conditions, it operates at a rated current of 9 A, providing significant reliability.

Performance can be optimized through the wide output frequency range of 0.2 to 400 Hz, allowing tailored settings for various operational needs. This model features exceptional frequency accuracy, maintaining ±0.2% in analog and ±0.01% in digital formats, ensuring consistent operation and precision.

The inverter’s overload capacity enables it to handle bursts of current—up to 150% for 60 seconds and 200% for a brief period of 0.5 seconds—making it robust against transient loads. The voltage and frequency characteristics support constant and variable torque applications across a full 0–400 Hz range.

Users can set acceleration and deceleration times between 0 and 3600 seconds using either linear or S-pattern profiles for flexibility in control. The DC dynamic brake can also operate up to 120 Hz, offering adjustable functions between 0 and 10 seconds, with voltage variation ranging from 0 to 30%.

It requires a power supply voltage of 380–480V AC, coordinated with a permissible voltage fluctuation between 323 and 528V. The forced air cooling system efficiently manages heat, while the protective structure rated at IP20/IP00 ensures adequate defense against dust and accidental contact.

Operationally, the ambient temperature range spans from -10°C to +50°C, providing adaptability in various environments by maintaining optimal performance across typical industrial conditions.