178B3811
Wake Industrial LLC is not an authorized distributor of this product.
MPN: VLT6062GT4CN1STR0DLF40A00C0
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The 178B3811 is a high-efficiency drive with 96% energy performance and a typical shaft output power of 10 HP or 7.5 kW. Manufactured by Danfoss as part of the VLT 6000 HVAC Drives series, it operates with a mains supply voltage of 3 x 200-240 V AC at 50/60 Hz. The enclosure options include NEMA 1 or NEMA 12, weighing 51 lbs and 84 lbs respectively.
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Product Description:
Danfoss manufactures the HVAC Drive 178B3811 that features unlimited switching on output with constant operation without limitation. This HVAC drive features a true power factor of 0.90 nominal at rated load for efficient use of supplied power.
This HVAC drive needs up to 50 mm² maximum power cable cross-section to provide a stable connection for demanding electrical configurations. With the output power of 64.7 kVA at 400 V, this drive ensures stable energy output to support large HVAC systems. This HVAC drive has a switching frequency adjustability from 3 kHz to 14 kHz, which allows flexibility to reduce motor noise or improve efficiency, based on application. The enclosure protection of the 178B3811 HVAC drive is rated IP20, and it is thus well-suited for installations in protected environments like electric cabinets. This drive’s adherence to the UL and NEMA Type 1 requirements further authenticates its conformity to international safety and installation specifications. With adaptability in mind, this HVAC drive comes with a LonWorks FT bus option, which offers smooth communication in building automation networks. For control flexibility, this drive has eight programmable digital inputs with 2 kΩ input resistance to accommodate various configurations for HVAC process demands.
This drive has an output frequency spanning from 0 to 1000 Hz to be compatible with broad speed-controlled motors and to handle variable torque loads. The installation requirements of the 178B3811 HVAC drive indicate a maximum altitude limit of 1000 m to provide the best functionality under normal building conditions. This drive has a maximum input current of 89 A, which is in line with heavy supply systems. It also handles a maximum short-circuit current of 100000 A to ensure safe operation under conditions where high fault currents can occur.
Frequently Asked Questions about 178B3811:
Q: How does the 3–14 kHz switching frequency benefit the 178B3811?
A: The adjustable range allows reduced motor noise at low settings. Higher frequencies improve motor control precision in demanding HVAC applications.
Q: Why is the LonWorks FT bus option important in HVAC Drive 178B3811?
A: It ensures smooth integration with building automation networks. This enhances monitoring and control of HVAC processes.
Q: How does the 0–1000 Hz output frequency range help system design?
A: It allows motor operation from zero to very high speeds. This supports both variable torque and constant torque applications.
Q: What advantage does the 50 mm² max cable cross-section provide in model 178B3811?
A: It supports larger conductors for safe current handling. This minimizes losses and ensures reliable electrical connections.
Q: How does a power factor of 0.90 nominal affect efficiency?
A: It improves utilization of electrical energy at rated load. This reduces wasted power and lowers operating costs.
