131B1271-11 KW / 15 HP, 380 - 480 VAC, IP21 / Type 1,RFI Class A2 (C3), No brake chopper, No Mains OptionNo A Option, No B Option, Not Coated PCB

136H4051 Danfoss VLT HVAC Drive 11KW/15HP 380-480VAC IP55

Danfoss 136H4051 VLT HVAC Drive FC 102, an 11 kW three phase AC variable frequency drive designed for HVAC motor control, fans, pumps, compressors and building services applications.

SKU: 136H4051Alt SKU: FC-102P11KT4E55H3XGX1OXSXXXXAXB0CXXXXDXMPN: 136H4051
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Manufacturer Lead Time

£2,088.00

Why Choose the Danfoss 136H4051 VLT® HVAC Drive?

The Danfoss 136H4051 is a reliable and energy-efficient AC variable frequency drive (VFD) from the Danfoss VLT® HVAC Drive FC 102 series. Designed for heating, ventilation and air conditioning applications, this drive provides precise motor speed control for fans, pumps, compressors and building services equipment.

The VLT® HVAC Drive FC 102 range is engineered to optimise HVAC performance while helping reduce energy consumption, mechanical wear and operating costs. With advanced HVAC functionality, integrated RFI filtering, a graphical local control panel and mains disconnect, the 136H4051 is well suited to commercial and industrial HVAC installations.

With a rated output power of 11 kW (15 HP) and a three-phase 380–480 V AC supply, the Danfoss 136H4051 is ideal for medium-duty HVAC motors used in ventilation systems, pumps and plant room equipment. Its IP55 / Type 12 enclosure provides enhanced protection for demanding installation environments.

Key Advantages

  • Dedicated HVAC variable frequency drive for fans, pumps and compressors.
  • 11 kW motor power rating suitable for commercial HVAC equipment.
  • Three-phase 380–480 V AC input compatible with industrial power systems.
  • IP55 / Type 12 enclosure for improved environmental protection.
  • Integrated RFI Class A1/B (C1) filter for reduced electrical interference.
  • Graphical Local Control Panel for straightforward commissioning and monitoring.
  • Mains disconnect included for convenient isolation.
  • MCB 109 I/O with RTC back-up for expanded control functionality.

Key Features

  • Danfoss VLT® HVAC Drive FC 102 series.
  • 11 kW (15 HP) rated output power.
  • 21 A continuous output current.
  • Three-phase 380–480 V AC input supply.
  • IP55 / Type 12 protection rating.
  • Integrated RFI Class A1/B (C1) filter.
  • Graphical Local Control Panel included.
  • Mains disconnect included.
  • MCB 109 I/O with RTC back-up.
  • No brake chopper fitted.
  • Not coated PCB.
  • Latest release standard software.
  • Frame size B1.

Efficient Motor Control for HVAC Systems

Variable frequency drives such as the Danfoss 136H4051 regulate motor speed by adjusting the voltage and frequency supplied to the motor. This allows HVAC systems to match fan or pump output to actual demand, improving efficiency while reducing unnecessary energy use.

The FC 102 series is purpose-built for HVAC applications and supports reliable operation of fans, pumps, compressors, ventilation systems and building automation equipment. With its IP55 enclosure, integrated RFI filtering and useful I/O expansion, this model is a dependable choice for commercial HVAC motor control installations.

Typical Applications

  • Air handling units and ventilation systems.
  • Commercial HVAC fans.
  • Heating and cooling circulation pumps.
  • Compressor control in HVAC systems.
  • Building management systems.
  • Plant room motor control installations.
  • Industrial ventilation and extraction systems.
  • Energy-efficient HVAC retrofit projects.

Technical Specifications

Power 11 kW
Voltage 480 V
Phase Three Phase
IP Rating IP55
Series VLT® HVAC Drive FC 102
Catalogue number FC-102P11KT4E55H3XGX1OXSXXXXAXB0CXXXXDX
Product type AC variable frequency drive
Rated output power 11 kW
Horsepower rating 15 HP
Output current 21 A
Input voltage 380–480 V AC
Input phases 3-phase
Output phases 3-phase
Frequency 50 / 60 Hz
Protection rating IP55 / Type 12
RFI filter Class A1/B (C1)
Brake chopper Not included
Control panel Graphical Local Control Panel
Mains option Mains disconnect
I/O option MCB 109 I/O with RTC back-up
PCB coating Not coated
Frame size B1
Dimensions (H × W × D) approx. 494 × 243 × 261 mm
Weight approx. 21.29 kg
EAN 5710108705893
EMC Filter Commercial

Frequently Asked Questions

What is the Danfoss 136H4051 used for?

The Danfoss 136H4051 is used to control three-phase AC motors in HVAC applications such as fans, pumps, compressors, ventilation systems and building services equipment.

What motor power is supported by this drive?

This drive is rated for motors with an output power of approximately 11 kW (15 HP).

What supply voltage does the Danfoss 136H4051 require?

The drive operates from a three-phase 380–480 V AC supply.

What enclosure rating does this drive have?

The Danfoss 136H4051 has an IP55 / Type 12 enclosure, offering protection suitable for demanding HVAC and industrial environments.

Does this model include additional I/O functionality?

Yes. This configuration includes MCB 109 I/O with RTC back-up, providing additional control and real-time clock functionality for HVAC applications.

Trusted by HVAC Engineers Worldwide

Danfoss VLT® HVAC drives are trusted by building services engineers, contractors and facility managers for reliable motor control, efficient operation and long-term HVAC system performance.

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