Air Differential Pressure Switch huba604 Technical Overview 1. The differential pressure switch is suitable for monitoring flow control filters, blowers, and air regulating valves in ventilation systems. 2. The differential pressure switch is also highly suitable for overheating protection of heating coils and frost protection in industrial cooling circuits. 3. Easy to operate and simple to install. 4. Multiple range switches with high operational accuracy. 5. Cover secured with just one fixing screw. Technical Parameters Pressure range: See the list below. Temperature range/Overpressure: Overpressure 5000Pa Operating range: -20～85℃ Overpressure 7500Pa Operating range: -20～75℃ Storage temperature: -40～85℃ Minimum starting pressure: Standard 20Pa; Set point and gap adjustable, minimum starting gap 10Pa (range 20～30Pa). Repeatability: Range 20～300Pa <±2.5Pa Range 50～2000Pa <±5Pa Range 1000～5000Pa <±15Pa Housing structure: Main housing: Glass fiber reinforced plastic Cover: Plastic Weight: 120g without bracket, 144g with C-type bracket. Installation position: Standard placement: Vertical. Pressure connection: Pipe diameter 6.2mm. Diaphragm: Silicone LSR, tempered at 200℃, allowing free gas flow and dissipation. Electrical connection: Screw terminal block or AMP connector socket 6.3 or 4.8mm according to DIN46244 standard. Pg cable gland to relieve cable strain. Contact system Standard type: Snap-action switch. Option: N/O contact. Contact material: Tested according to VDE/DVGW standard 1A/250 VAC option: Agcdo (3A). Tested according to: VDE0630, EN 61058, DVGW according to DIN3398. Protection class: Without cover IP00, with cover IP54. Service life: Mechanical cycles >1,000,000 times.