Key Features
- Explosion-proof design certified for hazardous areas (Zone 1 & 2)
- Heavy-duty aluminum alloy housing with protective powder coating
- IP66 rated — dust-tight and protected against high-pressure water jets
- Flexible 4-pole switching configuration for diverse electrical circuits
- High-current capacity suited for marine DC power systems
- Corrosion-resistant construction ideal for offshore and saltwater environments
- Compact, surface-mount design for space-saving installation
- Supplied with M20 cable glands for quick wiring
Technical Specifications
| Specification | Value |
|---|---|
| Switch Type | Explosion-proof Rotary Switch |
| Model Number | dcHH202-4 |
| Rated Voltage | 24 V DC (max 250 V DC) |
| Rated Current | 10 A |
| Number of Poles | 4 |
| Enclosure Material | Aluminum Alloy |
| Protection Class | IP66 |
| Explosion Protection | Ex d IIB T6 |
| Operating Temperature | -20°C to +60°C |
| Wire Connection | Screw terminals (1.5–4 mm²) |
| Cable Entry | 2 × M20 |
| Weight | ~1.2 kg |
| Mounting | Surface mount |
Frequently Asked Questions
What is the rated voltage of the dcHH202-4 switch?
The dcHH202-4 is rated for 24 V DC standard, but can also handle up to 250 V DC depending on the application. Please verify the exact voltage requirements with your electrical engineer before installation.
Is this switch suitable for offshore and marine use?
Yes, this explosion-proof switch is designed specifically for harsh marine environments. It comes with an IP66 enclosure that fully protects against dust and water ingress, making it ideal for deck areas, engine rooms, and other exposed locations.
Does the switch meet explosion-proof certification standards?
Absolutely. It is constructed in accordance with international explosion-proof protection standards, suitable for hazardous locations classified as Zone 1 and Zone 2 where explosive gases may be present.
What is included with the switch?
Each switch is delivered with two M20 cable glands and all necessary mounting accessories. The wiring terminals are clearly marked for easy connection.
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