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Mitsubishi FREQROL FR-A5 FR-A540-1.5K

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FR-A540-1.5K

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The Mitsubishi FR-A540-1.5K is a transistorized inverter that operates at a voltage class of 400V. It is designed for three-phase power and supports an input voltage range from 380 to 480V AC at 50/60Hz, accommodating a ±5% frequency variation. It efficiently manages permissible fluctuations between 323 and 528V AC.

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Technical specifications for FR-A540-1.5K

ManufacturerMitsubishi
Product Type400V Class Transistorized Inverter
Product LineFREQROL FR-A5
Part NumberFR-A540-1.5K
Weight6.50 lbs (2.95 kg)
Input Voltage Range380 to 480V Three-Phase AC at 50/60Hz
Permissible Voltage FluctuationOperates within 323 to 528V AC, ±5% Frequency Variation
DC Dynamic BrakeConfigurable Frequency (0–120Hz), Time (0–10s), and Voltage (0–30%)
Overload Capacity150% for 60s, 200% for 0.5s, with Inverse-Time Characteristics
Cooling SystemForced Air Cooling
Applicable Motor Capacity1.5 Kilowatts
Rated Capacity3 Kilovolt-Amperes
Rated Current4 Amperes
Frequency Accuracy±0.2% at 25°C ±10°C for Analog Input; ±0.01% for Digital Input
Voltage/Frequency CharacteristicAdjustable Base Frequency from 0 to 400Hz; Constant or Variable Torque Modes
Starting Torque150% Torque at 0.5Hz with Magnetic Flux Vector Control
Torque BoostConfigurable Manual Boost
Acceleration/Deceleration TimeAdjustable from 0 to 3600 Seconds; Linear or S-Curve
Protective StructureIP20 for Enclosed or IP00 for Open Installations
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Engineered as a 400V class transistorized inverter, the Mitsubishi FR-A540-1.5K handles three-phase input with an operating range of 380 to 480V AC, suitable for 50/60Hz applications. It is crafted to manage permissible voltage variations, operating effectively between 323 and 528V AC while tolerating fluctuations in frequency up to ±5%.

This inverter integrates a DC dynamic brake with customizable settings for frequency (from 0 to 120Hz), time (0 to 10 seconds), and voltage (up to 30%). When it comes to overload protection, the device can sustain 150% of its rated capacity for 60 seconds and 200% for a brief 0.5 seconds with an inverse-time response. A forced air cooling system is employed, allowing effective thermal management during use.

The FR-A540-1.5K is suitable for motors up to 1.5 kilowatts and has a rated capacity of 3 kilovolt-amperes with a rated current of 4 amperes. The device guarantees frequency accuracy with an impressive %±0.2% tolerance at 25°C for analog input, while digital input boasts an even tighter specification of ±0.01%.

Users can adjust the base frequency of the inverter between 0 and 400Hz, with options for either constant or variable torque modes. Starting torque is notable, reaching 150% at 0.5Hz thanks to advanced magnetic flux vector control. Manual torque boost configurations are also available.

In terms of acceleration and deceleration, the inverter allows users to set these parameters anywhere from 0 to 3600 seconds with options for linear or S-curve characteristics. For protection, its structure is rated IP20 for enclosed installations, while an IP00 rating applies for those setups exposed to the environment.