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134U6837 Danfoss VLT HVAC Drive 4.0KW/5.5HP 380-480VAC IP55
MPN: 134U6837
Alt. SKU: FC-102P4K0T4Y55H3XGX1XXSXXXXAXB0CXXXXDX
Special Price
£1,188.72
£990.60
Regular Price
£1,981.20
Why Choose the Danfoss 134U6837 VLT® HVAC Drive?
The Danfoss 134U6837 is a compact and robust variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC 102 series, designed for efficient motor control in heating, ventilation, air conditioning and refrigeration systems. Built for HVAC environments, it provides precise speed control for pumps, fans and compressors while helping reduce energy consumption, improve reliability and optimise system performance.
As part of the Danfoss VLT® HVAC Drive range, the 134U6837 includes dedicated HVAC functionality for airflow, pressure, temperature and water circulation control. Its integrated EMC filtering, graphical local control panel, mains disconnect and MCB-109 I/O with RTC back-up support straightforward commissioning and integration into building management systems.
With a rated output power of 4 kW (5.5 HP) and a three-phase 380–480 V AC supply, the Danfoss 134U6837 is suitable for commercial and industrial HVAC motor control applications. The IP55 / Type 12 backplate enclosure offers enhanced environmental protection, making it suitable for protected wall-mounted installations in plant rooms and industrial HVAC environments.
Key Advantages
- Dedicated HVAC variable frequency drive for pumps, fans and compressors.
- 4 kW (5.5 HP) power rating for efficient HVAC motor control.
- Three-phase 380–480 V AC input for industrial and commercial systems.
- IP55 / Type 12 backplate enclosure for enhanced protection in HVAC environments.
- Mains disconnect fitted for convenient electrical isolation.
- MCB-109 I/O with RTC back-up provides additional control and time-based functionality.
- Integrated RFI Class A1/B (C1) EMC filter helps reduce electrical interference.
Key Features
- Danfoss VLT® HVAC Drive FC 102 series.
- 4 kW rated output power.
- 5.5 HP motor power rating.
- 8.2 A output current.
- Three-phase 380–480 V AC input supply.
- IP55 / Type 12 backplate protection rating.
- RFI Class A1/B (C1) EMC filter.
- No brake chopper fitted.
- Graphical local control panel for setup and monitoring.
- No A option fitted.
- MCB-109 I/O with RTC back-up fitted.
- Not coated PCB.
- Mains disconnect included.
- A4 frame size for compact HVAC installations.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT® HVAC Drive FC 102
- Model: 134U6837
- Type code: FC-102P4K0T4Y55H3XGX1XXSXXXXAXB0CXXXXDX
- Product type: Variable frequency drive
- Rated output power: 4 kW
- Horsepower rating: 5.5 HP
- Output current: 8.2 A
- Input voltage: 380–480 V AC
- Input phases: Three-phase
- Application: HVAC motor control
- Protection rating: IP55 / Type 12 backplate
- RFI filter: Class A1/B (C1)
- Brake chopper: Not fitted
- A option: No A option
- B option: MCB-109 I/O, RTC back-up
- Local control panel: Graphical LCP
- PCB coating: Not coated PCB
- Mains option: Mains disconnect
- Frame size: A4
- Dimensions (H × W × D): approx. 391 × 200 × 177 mm
- Net weight: approx. 8.84 kg
- EAN: 5710108028824
Efficient Motor Control for HVAC Systems
Variable frequency drives such as the Danfoss 134U6837 regulate motor speed by adjusting output frequency and voltage. This allows HVAC equipment to operate according to real system demand, helping reduce energy use, improve comfort control and minimise mechanical stress on motors and connected components.
The FC 102 series is developed for HVAC and building services applications where energy savings, reliable operation and straightforward commissioning are essential. With additional I/O, RTC back-up and an integrated mains disconnect, the 134U6837 supports dependable operation in modern HVAC control and building management systems.
Typical Applications
- Air handling units and ventilation systems.
- Commercial HVAC plant rooms.
- Industrial fans and blowers.
- Heating and chilled water circulation pumps.
- Cooling and condenser systems.
- Refrigeration and compressor control systems.
- Wall-mounted HVAC motor control installations.
Frequently Asked Questions
What is the Danfoss 134U6837 used for?
The Danfoss 134U6837 is used to control the speed of three-phase AC motors in HVAC applications such as fans, pumps, compressors and ventilation systems.
What motor power is supported by this drive?
This drive is rated for 4 kW (5.5 HP) motor control applications.
What supply voltage does the drive require?
The 134U6837 operates from a three-phase 380–480 V AC supply.
What enclosure rating does this drive have?
The drive has an IP55 / Type 12 backplate enclosure, making it suitable for HVAC installations requiring enhanced environmental protection.
Does the Danfoss 134U6837 include a mains disconnect?
Yes, this model includes a mains disconnect for convenient electrical isolation during servicing and installation.
Trusted by HVAC Engineers Worldwide
Danfoss VLT® HVAC drives are widely used by building services engineers, facilities teams and HVAC contractors to deliver reliable motor control, energy savings and dependable performance in modern heating, ventilation and cooling systems.
| Manufacturer Part Number | 134U6837 |
|---|---|
| Barcode | 5710108028824 |
| Height | 390mm |
| Width | 200mm |
| Depth | 175mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP55 |
| KW Rating | 4kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P4K0T4Y55H3XGX1XXSXXXXAXB0CXXXXDX |
Write Your Own Review
The VLT HVAC drive has built-in intelligence to give optimal process control to heating, ventilation and air conditioning (HVAC). It is simple to use and extremely cost-efficient, featuring a number of functions that are ideal for use with pumps, fans and compressors to save energy, meet environmental regulations and reduce costs in modern buildings.
The VLT HVAC drive has a compact, robust design and is ideally suited to locations where space is restricted. A selection of safety features, such as Safe Torque Off and Safe Maximum Speed, protect both applications and their operators.
Enclosures can be purchased separately, up to IP66, and an additional option available upon purchase is a unique coating to provide added protection for the circuit boards. Integrated DC chokes and RFI filters safeguard installations by minimizing harmonic distortion and electromagnetic.
Supply voltages and power range
3 x 200-240 V...1.1-45 kW
3 x 380-480 V...1.1 kW – 1 MW
3 x 525-600 V...1.1-90 kW
3 x 525-690 V...45 kW – 1.4 MW
Low harmonic drive
3 x 380-480 V...132-710 kW
12-pulse drive
3 x 380-480 V...250-200kW
Features and benefits
- There’s no need for external cooling or oversizing as the maximum ambient temperature is 50°C without derating
- PLC capacity is often unnecessary thanks to the Smart Logic Controller
- A low initial investment and easy upgrades are possible thanks to the modular concept with a wide range of options
- The need for external control and conversion equipment is avoided due to integrated pump, fan and compressor functionality
- 5–15% energy is saved as a result of the Automatic Energy Optimization function
- Less gateway solutions are needed thanks to a wide range of HVAC protocols for building management system controller connectivity
Applications
Pumps, fans, compressors.
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For further information on this product please get in touch with our team or visit the Danfoss website.
