175H7291
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The Danfoss 175H7291 is part of the VLT 3000 Variable Speed Drives series, delivering a rated power of 20 HP with a supply voltage of 380 V AC. It features integrated electronic thermal motor protection, efficiency of 96% at full load, and programmable output frequencies ranging from 0-120 Hz to 0-500 Hz. The drive is enclosed in IP20/IP54 types.
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Product Description:
The Danfoss 175H7291 Variable-speed drive can control the speed and torque of the motor precisely by adjusting the input frequency and voltage. Danfoss designed the variable-speed drive, which provides precise control over motor speed and is suitable for a wide range of operational demands.
The 3-phase 175H7291 variable speed drive operates at an input voltage of 380-415V. The input frequency of the speed drive is 50/60Hz with a frequency output range of 1-500Hz. Additionally, the variable speed drive is able to output a three-phase power supply signal at 380/400/415V frequency. The input current rating is 30.7A / 41A, and the output current rating is 32A / 44A. The power output is between 23.0 to 31.6 kVA. The variable speed drive has a protection class rating of IP20, which implies that it protects from the encountered solid object larger than 12mm; however, water protection is very limited. The variable speed drive is designed to perform at an ambient operating temperature of around 40°C to 45°C (i.e., 104°F to 113°F). A pre-fuse of as much as 63A is recommended for this variable speed drive.
The 175H7291 variable speed drive has a maximum output current of 44A, making it suitable for a wide range of applications. The variable speed drive is developed to meet high criteria while also providing sufficient flexibility in power output options for use. When the temperature restrictions are not exceeded, the speed drive provides satisfactory working and operating output. The variable speed drive is designed to suit the various demands of industrial work functions and applications by utilizing a dependable variable speed drive solution.
Frequently Asked Questions about 175H7291:
Q: Why does 175H7291 have an IP20 protection rating included?
A: The 175H7291 has IP20 protection to prevent solid object intrusion. It ensures safety for components while limiting water exposure.
Q: How does 175H7291 manage the output current of 32A / 44A efficiently?
A: The drive regulates output current using internal control algorithms. This ensures stable operation under varying load conditions.
Q: Why does 175H7291 use a 3-phase 380-415V input voltage range?
A: The 3-phase input allows the drive to operate across standard voltage levels. It provides consistent energy delivery to connected motors.
Q: Does 175H7291 support frequency variation 1-500Hz effectively?
A: Yes, the 175H7291 adjusts frequency for precise motor speed control. It allows flexibility for different operational requirements.
Q: How does 175H7291 handle ambient temperatures of 40°C to 45°C?
A: The drive uses thermal protection to maintain safe operation. It prevents overheating and ensures reliable performance.
