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NVENT HOFFMAN ETF300 Thermostat/hygrostat
nVent HOFFMAN ETF300 electronic thermostat and hygrostat for controlling temperature and humidity inside electrical enclosures.
£224.25
Why Choose the nVent HOFFMAN ETF300 Thermostat/Hygrostat?
The nVent HOFFMAN ETF300 is an advanced electronic thermostat and hygrostat designed to monitor and control both temperature and relative humidity inside electrical enclosures. As part of the nVent HOFFMAN enclosure climate control accessory range, it helps prevent condensation, corrosion and moisture-related damage by automatically controlling connected heaters and filter fans.
This adjustable thermostat/hygrostat provides independent temperature and humidity monitoring with configurable switching thresholds. The device can control enclosure heating equipment and ventilation accessories, helping maintain a stable internal environment while reducing unnecessary energy consumption.
Operating from a 230 V AC supply with a temperature setting range of 0 °C to +60 °C and humidity adjustment range of 40–90% relative humidity, the ETF300 is suitable for industrial control cabinets, automation enclosures and electrical systems where reliable climate management is required.
Key Advantages
- Combined electronic thermostat and hygrostat for enclosure climate control.
- Monitors temperature and relative humidity independently.
- Helps prevent condensation and corrosion inside electrical cabinets.
- Adjustable settings allow application-specific climate control.
- Controls heaters and filter fans automatically when required.
- Designed for easy installation on 35 mm DIN rails.
Key Features
- nVent HOFFMAN ETF series climate control accessory.
- Electronic thermostat and hygrostat combination.
- 230 V AC supply voltage.
- Temperature setting range: 0 °C to +60 °C.
- Humidity setting range: 40–90% R.H..
- IP20 protection rating.
- UL94 V-0 plastic housing.
- 35 mm DIN rail mounting clip.
- NO and NC switching contacts.
- Designed for control of enclosure heaters and filter fans.
Reliable Enclosure Climate Management
The nVent HOFFMAN ETF300 helps protect sensitive electrical equipment by maintaining suitable temperature and humidity conditions inside enclosures. By automatically activating connected heaters or ventilation devices, it reduces the risk of condensation forming on electrical components.
Designed for industrial automation and electrical cabinet applications, the ETF300 provides flexible adjustment options and dependable switching performance for professional enclosure climate control systems.
Typical Applications
- Industrial electrical control cabinets.
- Automation and PLC enclosures.
- Switchgear and distribution cabinets.
- Outdoor electrical enclosures with climate requirements.
- Machine control panels.
- Industrial heating and ventilation control systems.
Technical Specifications
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| Device Type | Thermostat | |
|---|---|---|
| Accessory Type | Climate Accessories | |
| Country of Manufacture | Germany | |
| Manufacturer | nVent HOFFMAN | |
| Series | ETF Electronic Thermostat/Hygrostat | |
| Model | ETF300 | |
| Product type | Electronic thermostat/hygrostat | |
| Supply voltage | 230 V AC | |
| Frequency | 50 / 60 Hz | |
| Temperature setting range | 0 °C to +60 °C | |
| Humidity setting range | 40–90% R.H. | |
| Operating temperature | -20 °C to +60 °C | |
| Switch capacity | 240 V AC, 8(3) A; 120 V AC, 8(3) A; 24 V DC, 4 A | |
| Connection | Pole terminal for 2.5 mm² | |
| Protection rating | IP20 | |
| Finish | RAL 7035 | |
| Mounting | 35 mm DIN rail (EN 60715) | |
| Service life | 50,000 cycles | |
| Weight | approx. 0.10 kg | |
| Approvals | CE, EAC, cULus_UL Listed |
Frequently Asked Questions
What is the nVent HOFFMAN ETF300 used for?
The ETF300 is an electronic thermostat and hygrostat used to control temperature and humidity inside electrical enclosures to prevent condensation and corrosion.
What voltage does the ETF300 require?
The ETF300 operates from a 230 V AC supply at 50/60 Hz.
What temperature range can the ETF300 control?
The thermostat provides an adjustable temperature setting range of 0 °C to +60 °C.
What humidity range can the ETF300 monitor?
The hygrostat function provides an adjustable humidity range of 40–90% relative humidity.
How is the ETF300 mounted?
The ETF300 is designed for installation on a standard 35 mm DIN rail using its integrated mounting clip.
Trusted by Industrial Control Professionals
nVent HOFFMAN climate control accessories help engineers maintain reliable enclosure environments by preventing condensation, improving equipment protection and extending component service life.
