KAFS Series 250V 8A IP65 Air Flow Proving Switch with 80x175mm Stainless Steel Paddle for HVAC Systems
The KAFS series adjustable air flow paddle switch is engineered for precise control and monitoring of air and non-aggressive gas flow in duct systems. This industrial-grade switch is ideal for air ducts, air conditioning systems, and air handling equipment.
Designed for monitoring and controlling air and non-aggressive gas flow in ducts and chambers of heating, cooling, and air conditioning equipment.
- Renovated SPDT micro switch ensures reliable switching function
- Stainless steel paddle construction
- Cut-in and cut-out flow rate control
- Brass level component
- IP65 protection rating
| Parameter | Specification |
|---|---|
| Model | KAFS |
| Operation Type | On/Off, single-stage, micro switch |
| Flow Rate Switching | Cut-out: 1.0-8.0 m/sec, Cut-in: 2.5-9.2 m/sec |
| Flow Rate Adjustment | Internal screw |
| Sensing Element | Paddle |
| Paddle Size | 3.2 x 6.9 inches (80 x 175 mm) |
| Paddle with Level Length | 7.9 inches (200 mm) |
| Flow Applications | Air and non-aggressive gases |
| Paddle Material | Stainless steel |
| Paddle Level Material | Brass |
| Ambient Temperature | Housing: -40°F to 185°F (-40°C to 85°C) Paddle: 14°F to 185°F (-10°C to 85°C) |
| Ambient Humidity | 10-90% RH, non-condensing |
| Cable Entry | M18 fitting |
| Housing Material | Base: Galvanized steel; Cover: ABS (fire retardant) or PC |
| Housing Color | White |
| Protection Rating | IP65 |
| Installation | Duct mounted |
| Ship Weight | 0.7 kg |
Mount the flow switch into a duct or chamber where the air paddle can freely point horizontally downwards. To prevent air swirl and paddle instability, provide straight zones for a length of 5 times the duct diameter upstream and downstream from the installation location.
Units are factory calibrated to the minimum switch-off value. To increase the set value, adjust the range screw clockwise. Due to fracture risk at air speeds exceeding 5.0 m/sec, the paddle must be cut off on the marked side. When paddle is cut, minimum cut-out value increases from 1.0 m/sec to 2.5 m/sec.
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.