Data sheet Pressure switch and Thermostat KP and KPI The KP and KPI pressure switches and thermostats are used for control, monitoring and alarm systems in a wide variety of industry applications. KP pressure switches are mainly used for gaseous fluid whereas KPI pressure switches are more for liquid and gaseous fluid. The KP pressure range include special designed pressure switches and limiters for steam boilers and other heating applications. For water pump control and protection (dry run) the dual pressure switch KP44 is suitable and secure improved life time of the water pump. Features Wide setting range Manual trip function enables electrical connections verification without any tools or Shock and impact resistant pressure changes in the application Snap action electrical contacts minimize Versions with automatic and manual chatter, bounce, and wear, and ensure long reset available term electrical and mechanical reliability Small dimensions. Space saving easy to install in panels Electrical connection from front of the unit makes rack mounting easier and also saves space Suitable for alternating current and direct current Single pressure switches and thermostats are fitted with a single pole double throw contact system (SPDT) Can be used for both liquids and gases (KPI) Approvals CE-marked in accordance with LVD 2014/35/EU: China Compulsory Certificate, CCC EN 60947-1, EN 60947-4-1, EN 60947-5-1 (excluding boiler versions) Underwriters Laboratories Inc., UL GOST (excluding KPI) Danfoss DCS (az) 2017.12 IC.PD.P10.F9.02 1Data sheet Pressure switch and Thermostat, KP and KPI Technical data Single pressure switch KP 34, KP 35, KP 36, Description KP 35, KP 36 KPI 35, KPI 36 KPI 38 KP 37 boiler version Ambient temperature C -40 65 C (for max. 2 hours up to 80 C) Media temperature C -40 100 C Gaseous media and Steam, air, gaseous Fluid Gaseous media liquids media & liquids Phosphor bronze Bellows Phosphor bronze Stainless steel or Stainless steel Parts in contact Free-cutting steel with fluid Pressure (nickel plated) Brass Free-cutting steel (nickel plated) connector or Stainless steel Contact system Single-pole double throw (SPDT) Alternating current: Alternating current: Alternating current: AC-1: 16 A, 400 V AC-1: 10 A, 440 V AC-1 : 16 A, 400 V AC-3: 16 A, 400 V AC-3: 6 A, 440 V AC-3 : 16 A, 400 V Contact load, Silver AC-15: 10 A, 400 V AC-15: 4 A, 440 V AC-15 : 10 A, 400 V Direct current: Direct current: Direct current: DC-13: 12 W, 220 V DC-13: 12 W, 220 V DC-13: 12 W, 220 V Contact load, See information page 15 Gold plated contact set Unit must be mounted on a flat surface / a flat fitting and all unused holes Enclosure, IP30 grade covered Enclosure, IP44 grade Mounted as IP30 plus fitting of top cover, code no. 060-109766 Unit mounted in a special IP55 enclosure, code no. Enclosure, IP55 grade 060-033066 or 060-062866 Cable entry Rubber cable gland entry for 6 14 mm diameter cables Mounted on back 2 Vibration proof in the range 0 1000 Hz, 4 g 1 g = 9.81 m/s plate / wall bracket Mounted on angle bracket Not recommended in areas where vibrations occur Danfoss DCS (az) 2017.12 IC.PD.P10.F9.02 2