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135N1303 Danfoss VLT HVAC Drive 18.5KW/25HP 380-480VAC IP66
MPN: 135N1303
Alt. SKU: FC-102P18KT4E66H3XGCXXXSXXXXAXB0CXXXXDX
Special Price
£2,623.68
£2,186.40
Regular Price
£4,372.80
Why Choose the Danfoss 135N1303 VLT HVAC Drive?
The Danfoss 135N1303 is a high-performance AC variable frequency drive (VFD) from the renowned Danfoss VLT® HVAC Drive FC 102 series, engineered specifically for heating, ventilation and air conditioning applications. Designed to optimise motor control and energy efficiency, this drive provides reliable performance for HVAC systems operating in demanding commercial and industrial environments.
As part of the trusted FC 102 platform, the drive delivers advanced motor management capabilities, helping reduce energy consumption while improving system reliability. Its robust design includes integrated HVAC-specific functions, intelligent control features and flexible communication options that simplify installation and operation.
With a rated output power of 18.5 kW (25 HP) and a three-phase 380-480 V AC supply, the Danfoss 135N1303 is ideal for controlling fans, pumps, compressors and air handling equipment. The IP66 / NEMA 4X enclosure allows installation in harsh environments where dust and moisture protection are essential.
Key Advantages
- Purpose-built variable frequency drive for HVAC applications.
- 18.5 kW (25 HP) output rating for demanding motor control requirements.
- Three-phase 380-480 V AC input supply.
- IP66 / NEMA 4X enclosure for harsh environments.
- Improves energy efficiency and system performance.
- Integrated HVAC-specific control functions.
- Supports reliable operation of pumps, fans and ventilation systems.
Key Features
- Danfoss VLT® HVAC Drive FC 102 series.
- 18.5 kW / 25 HP rated power output.
- 380-480 V AC three-phase input.
- IP66 / NEMA 4X protection rating.
- Graphical Local Control Panel (LCP).
- Integrated RFI Class A1/B filter.
- Coated PCB for enhanced durability.
- Optimised for ventilation, heating and refrigeration systems.
- Flexible communication and control integration.
Technical Specifications
- Manufacturer: Danfoss
- Series: VLT® HVAC Drive FC 102
- Model: 135N1303
- Alternative model code: FC-102P18KT4E66H3XGCXXXSXXXXAXB0CXXXXDX
- Product type: AC variable frequency drive
- Rated output power: 18.5 kW (25 HP)
- Input voltage: 380-480 V AC
- Input phases: Three-phase
- Frequency: 50 / 60 Hz
- Protection rating: IP66 / NEMA 4X
- RFI filter: Class A1/B (C1)
- Brake chopper: No
- Control panel: Graphical Local Control Panel
- PCB coating: Coated PCB
- Frame size: B1
- Dimensions (H × W × D): approx. 480 × 242 × 260 mm
Optimised HVAC Motor Control
The Danfoss FC 102 HVAC Drive series is specifically developed for building services and industrial HVAC applications. By precisely controlling motor speed and torque, the drive reduces energy consumption, minimises mechanical wear and improves overall system efficiency.
Advanced control algorithms help maintain stable airflow, pressure and temperature conditions while reducing operating costs. The rugged IP66 enclosure further enhances reliability in outdoor and washdown environments where conventional drives may require additional protection.
Typical Applications
- HVAC ventilation systems.
- Air handling units (AHUs).
- Cooling tower fans.
- Chilled water and circulation pumps.
- Industrial refrigeration systems.
- Building management systems.
- Commercial and industrial climate control equipment.
Frequently Asked Questions
What is the Danfoss 135N1303 used for?
The drive is designed for HVAC applications, providing precise speed control for fans, pumps, compressors and ventilation equipment.
What motor size can this drive control?
The Danfoss 135N1303 is rated for motors up to 18.5 kW (25 HP).
What supply voltage does the drive require?
The drive operates from a three-phase 380-480 V AC supply.
What enclosure rating does the drive have?
The unit features an IP66 / NEMA 4X enclosure suitable for harsh industrial and outdoor environments.
What applications is the FC 102 series designed for?
The FC 102 series is specifically engineered for ventilation, heating, air conditioning and refrigeration applications.
Trusted by HVAC Professionals Worldwide
Danfoss VLT® HVAC Drives are widely used across commercial buildings and industrial facilities to deliver reliable motor control, reduced energy consumption and long-term operational performance.
| Manufacturer Part Number | 135N1303 |
|---|---|
| Barcode | 5710108174736 |
| Height | 480mm |
| Width | 242mm |
| Depth | 260mm |
| Filter | Filter Included |
| Input Phases | Three Phase |
| Degree of protection (IP) | IP66 |
| KW Rating | 18.5kW |
| Output Phases | Three phase |
| VSD Range | Danfoss VLT FC102 |
| Manufacturer | Danfoss |
| Alternative Product SKU | FC-102P18KT4E66H3XGCXXXSXXXXAXB0CXXXXDX |
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.
