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Mitsubishi FREQROL FR-A7 FR-A740-11K

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FR-A740-11K

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The Mitsubishi FR-A740-11K is a variable frequency drive providing optimal motor control. It operates with a nominal power rating of 11 kW or 15 horsepower, supporting 3-phase input and output voltage systems.

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Technical specifications for FR-A740-11K

ManufacturerMitsubishi
Product TypeVariable Frequency Drive
Product LineFREQROL FR-A7
Part NumberFR-A740-11K
Weight15.00 lbs (6.80 kg)
Supply Input50/60 Hz
PolarityReversible Operation
Operation ModeElectronic Bypass Operation
Brake SequenceIncluded
Cooling MethodForced Air Cooling
Rated Current23 A
Overload Current Rating150% In for 60s / 200% In for 3s (Inverse-time Characteristics)
DutyNormal Duty
Ambient Temperature50°C
Rated Power11 kW / 15 HP
Output Voltage3-Phase
Input Phase3 Phase
Frequency50/60 Hz
Control MethodPWM Control
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The FR-A740-11K model from Mitsubishi is classified as a variable frequency drive engineered for effective motor control applications. It works with a supply input frequency of 50/60 Hz, accommodating a 3-phase input and 3-phase output voltage configuration. The drive achieves reliable performance under various loads with a rated power of 11 kW (15 HP). The designed rated current for this unit is 23 A.

This drive includes features such as reversible operation, allowing for versatile applications. An electronic bypass operational mode enhances its utility in different scenarios. The system also comprises an integrated brake sequence to support controlled motor deceleration. It utilizes forced air cooling for thermal management to maintain operational stability, even in elevated ambient temperatures of up to 50°C.

Regarding overload capabilities, the drive can sustain 150% of the rated current continuously for 60 seconds and withstand up to 200% for short bursts of 3 seconds, demonstrating strong inverse-time characteristics. The drive is set for normal duty applications and employs pulse-width modulation (PWM) control for optimized functionality.