QAD Series 250V Differential Pressure Switch for Air Conditioners - 10kPa Max Pressure, -40°C to 85°C Operating Range
The QAD series air differential pressure switch is engineered for monitoring gas and non-corrosive media in HVAC applications. This precision instrument measures absolute pressure, gauge pressure, and differential pressure with reliable performance across various environmental conditions.
| Parameter | Specification |
|---|---|
| Model Series | QAD |
| Media Compatibility | Air, non-combustible and non-aggressive gases |
| Maximum Operating Pressure | 10kPa |
| Mounting Position | Diaphragm in any vertical plane |
| Degree of Protection | IP54 (with cover) |
| Operating Temperature | -40℃ to 85℃ |
| Contact Arrangement | SPDT |
| Electrical Rating | 1.5A resistive (0.4A inductive) 250V |
| Electrical Connection | 6.3x0.8 blade 46244 or screw terminals |
| Connection Size | φ6.0mm for tube connection |
| Weight | 0.15kg (0.35kg with flexible pipe) |
| Certifications | UL, CE, RoHS |
| Model | Pressure Range | Differential | Tolerance |
|---|---|---|---|
| QAD-1 | 20-200Pa | 10Pa | ±15% |
| QAD-2 | 30-300Pa | 10Pa | ±15% |
| QAD-3 | 40-400Pa | 20Pa | ±15% |
| QAD-4 | 50-500Pa | 20Pa | ±15% |
| QAD-5 | 200-1000Pa | 100Pa | ±15% |
| QAD-6 | 500-2500Pa | 150Pa | ±15% |
| QAD-7 | 1000-5000Pa | 250Pa | ±15% |
QAD series air pressure controls are factory-calibrated for vertical installation. Horizontal mounting affects switching points:
- Cover facing upwards: switching point 15Pa higher than scale
- Cover facing downwards: switching point 15Pa lower than scale
We are an experienced manufacturer with our own factory, offering OEM services and custom branding options. Our products carry UL, CE, and RoHS certifications, with intrinsic-safety and flame-proof certificates available. Standard warranty period is 12 months with flexible shipping options including express carriers and logistics services.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.