The factory-set pressure switch 903 for lower switching values Application Factory-set pressure switch monitoring overpressure of liquid and gaseous media. Pressure setting and switching differential are factory set by the manufacturer. Temperature range Ambient temperature -20° C to 85° C Diaphragm material NBR Electrical rating Standard version max. 6 (1.5) A / 250 VAC max. 10 (2) A / 250 VAC max. 2 A / 24 VDC Low-voltage version max. 100 mA / 24 VAC max. 30 mA / 24 VDC Electrical connection Tab terminal 6.3 mm x 0.8 mm in accordance with DIN 46244 Pressure connection Combined hose and threaded connection: 6.5 mm and G1/4, PPS PPS = Polyphenylensulfid Restrictors alternatively with 0.3/0.5/0.8 mm diameter Protection IP00 without protection cap IP54 / IP65 depending on the used protection cap Protection class Protection class II is only met by using a protection cap from our accessories program. The pressure switch without protection cap is provided for installation in equipment. The construction of the equipment and the type of installation determine the protection class. Warning Read instructions before use. This regulating and control unit must be installed in compliance with the applicable regulations. Conformity EU Low Voltage Directive EU RoHS Directive

903_data_english 7121-3 Technical data subject to change without prior notice. Copyright© 2021 Beck Sensortechnik GmbH Order matrix Pressure range Pressure connection Material Tolerance band Pmax. Diaphragm Pressure connection Switch contacts Overpressure 2 ... 5 mbar Vacuum -2 ... -5 mbar Plastic ±10% Standard NBR 6.5 mm and G1/4 - PPS Low-voltage Gold-plated 6A / 250 VAC AgNi 10A / 250 VAC AgNi Accessories Article-No. Protection cap IP54 with cable conduit M16 6371 Protection cap IP65 with cable conduit M16 6372 Protection cap IP54 with connector, Shape A, to EN 175301-803, without cable 6374...