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NVENT HOFFMAN DAHHL4002A Heater, 400 W, 230 VAC
nVent HOFFMAN DAHHL4002A hazardous location heater, a 400 W 230 VAC convection heater designed to protect industrial enclosures from freezing, condensation and corrosion.
Why Choose the nVent HOFFMAN DAHHL4002A Hazardous Location Heater?
The nVent HOFFMAN DAHHL4002A is a robust hazardous location enclosure heater designed to protect electrical and electronic equipment from low temperatures, freezing conditions, condensation and corrosion. As part of the nVent HOFFMAN hazardous location heater range, it provides reliable thermal management for industrial enclosures installed in demanding environments.
This 400 W heater uses convection heating technology, transferring heat from the finned aluminium body into the surrounding air to create a natural circulation of warm air. The design helps maintain suitable enclosure temperatures for sensitive instrumentation, control equipment and electrical components operating in hazardous areas.
With a rated heating capacity of 400 W and a 230 VAC supply, the DAHHL4002A is suitable for applications requiring reliable freeze protection and temperature control. Its explosion protection approvals make it ideal for use in classified hazardous locations where standard enclosure heaters are unsuitable.
Key Advantages
- 400 W hazardous location heater for industrial enclosure protection.
- Designed to prevent freezing, condensation and corrosion in sensitive equipment enclosures.
- 230 VAC operating voltage for industrial power systems.
- Explosion protection approvals for hazardous area installations.
- Convection heating design provides efficient heat distribution without requiring forced airflow.
- Robust anodised aluminium construction for demanding industrial environments.
Key Features
- nVent HOFFMAN DAHHL hazardous location heater series.
- 400 W heating power.
- 230 VAC rated voltage (207–253 VAC operating range).
- Convection heating using finned heater construction.
- Black anodised aluminium housing.
- Suitable for hazardous area applications requiring certified protection.
- Temperature classification T3.
- Requires compatible thermostat control for 400 W and 600 W models.
Reliable Thermal Protection for Hazardous Enclosures
Hazardous location heaters such as the nVent HOFFMAN DAHHL4002A help maintain stable environmental conditions inside electrical enclosures by preventing moisture build-up, freezing and temperature-related equipment failures. The convection heating method provides dependable heat transfer for cabinets containing sensitive instruments and control devices.
The DAHHL series is designed for industrial engineers requiring certified heating solutions in hazardous areas. Its rugged aluminium construction, high protection rating and explosion protection approvals support reliable operation in challenging process and automation environments.
Typical Applications
- Hazardous area electrical enclosures.
- Instrumentation and control cabinets.
- Process automation systems.
- Measurement and analysing equipment protection.
- Control valves and field equipment enclosures.
- Industrial installations requiring freeze and condensation protection.
Technical Specifications
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| IP Rating | IP65 | |
|---|---|---|
| Device Type | Convection heater (PTC) | |
| Coil / Supply Voltage | 230 V AC | |
| External Size (mm) | 225 × 229 mm | |
| Voltage | 230 V AC | |
| Heating Output (W) | 400 W | |
| Country of Manufacture | Germany | |
| Manufacturer | nVent HOFFMAN | |
| Series | DAHHL Hazardous Location Heaters | |
| Model | DAHHL4002A | |
| Product type | Hazardous location enclosure heater | |
| Heating capacity | 400 W | |
| Rated voltage | 230 VAC | |
| Voltage range | 207–253 VAC | |
| Heating type | Convection heating | |
| Temperature classification | T3 | |
| Protection rating | IP65 | |
| Explosion protection | ATEX, IECEx II2G Ex d IIC T3 / II2D Ex Td A21 IP65 T200°C | |
| Ambient operating temperature | -60 to +60 °C | |
| Dimensions (H × W × D) | 225 × 229 × 60 mm | |
| Weight | approx. 3.95 kg |
Frequently Asked Questions
What is the nVent HOFFMAN DAHHL4002A used for?
The DAHHL4002A is used to heat hazardous location enclosures and protect electrical equipment from freezing temperatures, condensation and corrosion.
What heating power does the DAHHL4002A provide?
The heater provides a rated heating capacity of 400 W.
What voltage does this heater require?
The DAHHL4002A operates from a 230 VAC supply with a rated operating range of 207–253 VAC.
Is this heater suitable for hazardous areas?
Yes, the heater is designed for hazardous locations and carries ATEX and IECEx explosion protection approvals.
Does the DAHHL4002A include a thermostat?
The 400 W model requires a compatible thermostat accessory for temperature regulation.
Trusted by Industrial Engineers Worldwide
nVent HOFFMAN hazardous location heaters are trusted by engineers and industrial operators to provide reliable enclosure heating, freeze protection and equipment protection in demanding environments.
