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NVENT HOFFMAN DAHHL501AC Heater, 50 W
nVent HOFFMAN DAHHL501AC hazardous location heater, a 50 W conductive heater designed to protect industrial equipment from freezing, condensation and corrosion.
Why Choose the nVent HOFFMAN DAHHL501AC Hazardous Location Heater?
The nVent HOFFMAN DAHHL501AC is a compact hazardous location enclosure heater designed to protect electrical equipment, instrumentation and control devices from freezing temperatures, condensation and corrosion. As part of the nVent HOFFMAN hazardous location heater range, it provides dependable thermal protection in demanding industrial environments where certified equipment protection is required.
This 50 W heater uses conductive heating technology and is designed for direct mounting onto manifolds, measuring instruments, analysing equipment, control valves and similar devices. Its self-limiting heating design provides reliable temperature management while helping prevent cold-related equipment failures.
With a rated heating capacity of 50 W and a 110–265 VAC/VDC operating range, the DAHHL501AC is suitable for hazardous area installations requiring compact and efficient freeze protection. The rugged black anodised aluminium construction supports long-term operation in industrial applications.
Key Advantages
- 50 W hazardous location heater for protection of sensitive industrial equipment.
- Designed to prevent freezing, condensation and corrosion in hazardous environments.
- Conductive heating design for direct equipment mounting.
- Self-limiting power regulation improves operational safety.
- Certified hazardous area protection with ATEX and IECEx approvals.
- Compact aluminium construction suitable for instrumentation and control applications.
Key Features
- nVent HOFFMAN DAHHL hazardous location heater series.
- 50 W heating capacity.
- 110–265 VAC/VDC rated voltage range.
- Conductive heating technology.
- Self-limiting heating regulation.
- Black anodised seawater-proof aluminium housing.
- Designed for direct mounting on manifolds, instruments and control valves.
- Suitable for operation in extreme ambient temperatures down to -60 °C.
Reliable Thermal Protection for Hazardous Equipment
Hazardous location heaters such as the nVent HOFFMAN DAHHL501AC maintain reliable operating conditions for electrical and instrumentation equipment by preventing freezing, moisture build-up and corrosion. The conductive heating method transfers heat directly into the protected device for efficient temperature control.
The DAHHL series is developed for industrial applications where certified protection is essential. Its compact design, self-regulating heating element and hazardous area approvals make it suitable for process automation, instrumentation and control installations.
Typical Applications
- Hazardous area instrumentation systems.
- Control valves and manifolds.
- Measurement and analysing equipment.
- Process automation installations.
- Electrical and electronic equipment requiring freeze protection.
- Industrial environments with condensation and corrosion risks.
Technical Specifications
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| IP Rating | IP66 | |
|---|---|---|
| Coil / Supply Voltage | 110–265 V AC | |
| External Size (mm) | 90 × 40 mm | |
| Device Type | Convection heater (PTC) | |
| Voltage | 110-265 V AC | |
| Heating Output (W) | 50 W | |
| Country of Manufacture | Germany | |
| Manufacturer | nVent HOFFMAN | |
| Series | DAHHL Hazardous Location Heaters | |
| Model | DAHHL501AC | |
| Product type | Hazardous location conductive heater | |
| Heating capacity | 50 W | |
| Rated voltage | 110–265 VAC/VDC | |
| Heating type | Conductive heating | |
| Power regulation | Self limiting | |
| Protection rating | IP66 / IP68 (1 bar / 30 min) | |
| Temperature classification | T4 | |
| Ambient operating temperature | -60 to +60 °C | |
| Maximum operating temperature | 150 °C | |
| Connection cable | 1 m silicone cable, notch and oil resistant | |
| Conduit connection | 1/2 NPT | |
| Dimensions (H × W × D) | 90 × 40 × 30 mm | |
| Weight | approx. 0.5 kg | |
| Approvals | ATEX, IECEx, CE, cCSAus |
Frequently Asked Questions
What is the nVent HOFFMAN DAHHL501AC used for?
The DAHHL501AC is used to protect hazardous location equipment from freezing temperatures, condensation and corrosion through controlled heating.
What heating power does the DAHHL501AC provide?
The heater provides a rated heating output of 50 W.
What voltage range does this heater support?
The DAHHL501AC operates from a 110–265 VAC/VDC supply range.
What type of heating technology is used?
The heater uses conductive heating technology with self-limiting power regulation for reliable temperature control.
Is the DAHHL501AC suitable for hazardous areas?
Yes, the heater is designed for hazardous locations and includes ATEX, IECEx, CE and cCSAus approvals.
Trusted by Industrial Engineers Worldwide
nVent HOFFMAN hazardous location heaters are trusted by engineers and industrial operators to provide reliable freeze protection, condensation control and equipment protection in hazardous environments.
