175H3120
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The 175H3120 VLT drive offers a motor power of 5.5 kW CT / 7.5 kW VT, an input voltage range of 3 x 380-460 V AC, a protection class of IP20, and dimensions of 290 x 135 x 220 mm. Part of the VLT 3000 Variable Speed Drives series by Danfoss, it features galvanic isolation (PELV) for enhanced safety.
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Product Description:
The 175H3120 Variable Speed Drive supports a supply voltage of 380 – 415 V and provides consistent performance at both continuous and intermittent loads. This drive is engineered to optimize motor efficiency with a nominal motor capacity of 5 HP.
The <175H3120 speed drive>> from Danfoss delivers a maximum motor cable length of 1000 feet unshielded. The output voltage is adjustable from 0 to 100 percent of AC line voltage that ensures adaptable operation across load conditions. The output frequency of the model is programmable and supports either 0 – 120 Hz or 0 – 500 Hz which allows precise control for different motor requirements. The output current is rated at 19.0 A continuous and 30.0 A intermittent for 60 seconds. The drive delivers 7.6 kVA continuous output power. It includes built in thermal protection through electronic control and a thermistor in compliance. The ramp times can be programmed between 0.1 and 3600 seconds that enables smooth acceleration and deceleration. The switching on the output is unlimited though frequent switching may result in cut-outs. The switching on the input is permitted up to five times per minute. The drive’s design makes it suitable for demanding environments where durability and consistent performance are required.
The <175H3120 speed drive>> operates with an efficiency of 0.96 at full load that ensures low energy loss during continuous service. It is equipped with vibration resistance of 0.7 g and complies with class E for relative humidity that allows operation in environments up to 95 percent humidity. The environmental operating range extends from -10 °C to + 40 °C at full load with storage and transport capability from -25 °C to + 65 °C.
Frequently Asked Questions about 175H3120:
Q: How does the 175H3120 Variable Speed Drive support flexible motor operation across diverse application requirements?
A: It provides an adjustable output voltage from 0–100% of the AC line and programmable output frequency ranges of 0–120 Hz or 0–500 Hz. This enables precise control under varying motor demands.
Q: How does the 175H3120 Variable Speed Drive ensure stable performance during continuous and peak overload conditions?
A: It delivers 19.0 A continuous and 30.0 A intermittent output current for up to 60 seconds. This balance supports consistent operation while handling short-term overloads effectively.
Q: What environmental resilience does the 175H3120 Variable Speed Drive offer for harsh or high-humidity installations?
A: It withstands vibration levels up to 0.7 g and supports relative humidity up to 95% under class E compliance. Its operating range is –10 °C to +40 °C at full load.
Q: How does the 175H3120 Variable Speed Drive manage acceleration and deceleration to reduce mechanical stress on motors?
A: Its ramp times are programmable from 0.1 to 3600 seconds. This wide range allows controlled startup and shutdown sequences for both sensitive and heavy-duty mechanical systems.
Q: How efficient is the 175H3120 Variable Speed Drive in reducing energy loss during extended operation?
A: It operates with an efficiency of 0.96 at full load. This ensures minimal energy waste while delivering stable performance across continuous-duty cycles.
