Product Overview
The GZW-300L Mini Desiccant Dehumidifier is a compact rotary desiccant dehumidification system engineered to maintain low humidity inside enclosed industrial equipment and technical rooms. By continuously removing moisture from the air, it effectively prevents condensation, corrosion, electrical leakage, insulation degradation and moisture-related equipment failures.
Unlike conventional refrigeration dehumidifiers, the GZW-300L Mini Desiccant Dehumidifier utilizes advanced desiccant rotor technology to deliver stable dehumidification even in low-temperature environments, making it ideal for year-round industrial applications.
The GZW series also includes GZW-200L and GZW-400L models, allowing customers to select the most suitable capacity according to enclosure volume and humidity requirements.
Parameters
| GZW-200L | GZW-300L | GZW-400L Mini Desiccant Dehumidifier Technical Specifications | |||
| Parameter | GZW-200L | GZW-300L | GZW-400L |
| DEH Cap. (20℃,60%RH) |
0.62 kg/h | 0.8 kg/h | 1.2 kg/h |
| Process Air | 220m³/h (200PA) |
320m³/h (200PA) |
420m³/h (200PA) |
| Reg. Air | 60m³/h (150PA) |
100m³/h (150PA) |
130m³/h (150PA) |
| Op. Temp. | -20°C ～ 56°C | ||
| Body Material | SPCC/SUS304 | ||
| Controller Type | PCB+86-Type LCD | ||
| Primary Filter | G4 | G4 | G4 |
| Heater Type | PTC | PTC | PTC |
| Max. Power | 1.85KW | 2.0KW | 2.35KW |
| Max. Current | 10A | 10A | 13.5A |
| Power Supply | 220V-240V/1PH/50hz or 60hz | ||
| Net Weight | 30kg | 34kg | 38kg |
Dimension:
Key Features
- High-efficiency rotary desiccant rotor
- Compact design for easy installation
- Continuous low-humidity operation
- Stable performance under low ambient temperatures
- Low maintenance and long service life
- PTC ceramic regeneration heater with high thermal efficiency
- Intelligent temperature control system
- Reliable anti-condensation protection
- Suitable for unattended industrial operation
- Multiple capacity options available
Typical Applications
The GZW-300L Mini Desiccant Dehumidifier is widely used in industrial environments requiring reliable humidity control, including:
- Electrical switchgear rooms
- Power distribution cabinets
- Electrical control panels
- Motor Control Centers (MCC)
- Communication cabinets
- Transformer rooms
- Wind turbine towers
- Wind turbine electrical cabinets
- Offshore electrical enclosures
- Battery energy storage system (BESS) cabinets
- Instrument cabinets
- Automation control cabinets
- Railway signal cabinets
- Telecommunications equipment
- Industrial electrical enclosures
Why Choose a Rotary Desiccant Dehumidifier?
Traditional compressor dehumidifiers lose efficiency in cool or enclosed environments and are unsuitable for applications requiring continuous moisture protection.
The GZW-300L Mini Desiccant Dehumidifier employs a continuously rotating silica gel rotor that adsorbs moisture from the process air while simultaneously regenerating the desiccant using heated air. This design ensures consistent humidity control regardless of ambient temperature and enables reliable operation throughout the year.
Working Principle
The unit operates using a dual-airflow desiccant process:
- Process air passes through the rotating desiccant rotor where moisture is adsorbed.
- Dry air is supplied into the protected enclosure.
- Regeneration air is heated by the PTC heater.
- Moisture is removed from the rotor during regeneration.
- The regenerated rotor continuously repeats the dehumidification cycle.
This continuous process delivers stable low-humidity protection with high reliability.
Advantages
- Prevents condensation inside electrical equipment
- Protects insulation materials
- Reduces corrosion of metal components
- Extends equipment service life
- Improves operational reliability
- Low operating cost
- Compact footprint
- Easy installation
- Continuous unattended operation
- Suitable for harsh industrial environments
Optional Configurations
- Stainless steel housing
- Digital humidity controller
- Remote monitoring
- RS485 / Modbus communication
- Custom power supply
- HEPA pre-filter
- High-temperature version
- Corrosion-resistant coating
Why Choose GOZ?
As a professional manufacturer of industrial desiccant dehumidification systems, GOZ provides customized humidity control solutions for electrical infrastructure, renewable energy, telecommunications and industrial automation.
Every unit is designed for reliable long-term operation with high-quality components, strict quality control and flexible customization to meet project-specific requirements.
FAQ
What is the GZW-300L Mini Desiccant Dehumidifier used for?
It is designed to control humidity inside electrical cabinets, switchgear rooms, control panels, wind turbine towers and other enclosed industrial equipment.
Why use a desiccant dehumidifier instead of a refrigerant dehumidifier?
Desiccant dehumidifiers provide stable moisture removal even at low temperatures and low humidity levels where refrigeration systems become less effective.
Can the GZW-300L Mini Desiccant Dehumidifier operate continuously?
Yes. It is designed for 24/7 industrial operation with continuous rotary desiccant regeneration.
Is the GZW series suitable for wind turbine applications?
Yes. The GZW series is widely used in wind turbine towers and electrical cabinets to prevent condensation and protect sensitive electrical equipment.
For more information about humidity control standards,please refer to ASHRAE.