Adjustable differential pressure switch ZKPS-1110 for monitoring
overpressure, vacuum and differential pressure of air or other
non-combustible, non-aggressive gases. Possible fields of
application include:
  Monitoring air filters and ventilators
  Monitoring industrial cooling-air circuits
  Overheating protection for fan heaters
  Monitoring flows in ventilation ducts
  Controlling air and fire-protection flaps
  Frost protection for heat exchangers

Adjustment range    Differential   Tolerance
 20 300 Pa          10 Pa            ± 15%
 30 400 Pa          15 Pa            ± 15%
 50 500 Pa          20 Pa            ± 15%
 200 1000 Pa        100 Pa           ± 15%
 500 2500 Pa        150 Pa           j± 15%
 1000 4000 Pa       250 Pa           ± 15%

Maximum operating pressure
10 kPa for all pressure ranges.

Medium
Air, non-combustible and non-aggressive gases.

Diaphragm material
Silicone, tempered at 200°C, free of gas emissions.
Other materials available on request.

Pressure connections
2 plastic pipe connection pieces (P1 and P2), external
diameter 6.0 mm:

Housing materials
Switch body made of PA 6.6.
Cover made of PS.

Mechanical working life
100,000 operations.

Electrical rating
Standard version max. 1.0 A (0.4 A) / 250 VAC
Low-voltage version max. 0.1 A / 24 VDC

Electrical connections
AMP flat plug 6.3 mm x 0.8 mm in accordance with DIN
46244 or push-on screw terminals.
Cable conduit with cable strain relief.
Arrangement of contacts
1 Break contact
2 Operating contact
3 Power supply line
Protection category
IP 54 with cover
IP 00 without cover
CE Conformity