175H7281

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The Danfoss 175H7281 is part of the VLT 3000 Variable Speed Drives series and provides a shaft output of 45 kW under constant torque conditions. It boasts an efficiency of 96% at full load and supports output frequencies of 0–120 Hz or 0–500 Hz. This drive has an enclosure class of IP21/IP54.

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Product Description:

The 175H7281 is a drive that can work in demanding motor tasks with versatility. It has a normal operation output current of 86 A. This drive supports 129 A for short time frames of up to 60 seconds. It gives resistance to sudden load change. With constant torque, the drive supplies a power capacity of 61.8 kVA and shaft output of 45 kW to constant torque drive applications over a wide range of speeds.

In quadratic torque uses, it provides 73 kVA of power with a shaft output of 55 kW, being a cost-effective solution to power variable load processes such as fans and pumps where power consumption varies. This two-way ability gives it even more flexibility in its operation, since the drive can operate reliably under heavy-duty and energy-optimum operations. The motor voltage rating from 380 V to 500 V allows easy integration into worldwide installations, taking on changing electrical standards for industrial operations. The 175H7281 also includes enclosure options of IP21 and IP54, offering mounting environment versatility from clean control rooms to more challenging industrial environments that require added protection. The enclosures shield the internal circuitry from moisture and dust. This adds to the operational life and reduces maintenance downtime. Aside from its technical specifications, the drive also offers efficiency and flexibility, capable of supporting accurate motor control and maximizing energy consumption in CT and QT modes.

Its strong balance of power ratings, current capacity, and protective features positions it as a sound choice for those markets looking to combine motor control reliability with improvement in efficiency. The 175H7281 demonstrates how modern drives are capable of providing not only performance, but also operational flexibility through delivering reliable operation in a range of applications where consistent output and long-term reliability are necessary.

Ambient Operating Temperature
-10 to +45°C
Efficiency At 100% Load
96%
Enclosure Class
IP21/IP54
Max. Cable Cross-section
70 mm²
Max. Motor Cable Length
300 m
Maximum Output Current (60s)
129 A
Output Current
86 A
Output Frequency
0–120 Hz or 0–500 Hz
Output Power (constant Torque)
61.8 kVA
Output Power (quadratic Torque)
73 kVA
Output Voltage
0–100% of mains voltage
Rated Motor Frequency
50/60/87/100 Hz
Rated Motor Voltage
380/400/415/440/460/500 V
Shaft Output (constant Torque)
45 kW
Shaft Output (quadratic Torque)
55 kW

Frequently Asked Questions about 175H7281:

Q: What is the output current of 175H7281?

A: The 175H7281 has a continuous output current of 86 A.

Q: What maximum output current does 175H7281 provide?

A: The 175H7281 delivers up to 129 A for 60 seconds.

Q: What is the constant torque power rating of 175H7281?

A: The 175H7281 provides 61.8 kVA in constant torque mode.

Q: What quadratic torque power does 175H7281 deliver?

A: The 175H7281 delivers 73 kVA in quadratic torque mode.

Q: What is the shaft output power of 175H7281?

A: The 175H7281 gives 45 kW constant torque and 55 kW quadratic torque.


Internal Product Review

  • ‘‘The 175H7281 stands out for its proven reliability in extended operation. Customers appreciate how effectively it maintains output during long cycles. It is often praised for seamless integration within demanding systems, allowing operations to remain uninterrupted. Its durability makes it a trustworthy option where confidence in consistent performance is essential.’’

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