Schneider ZB4BT84 Push Button Operator 22 mm Size, Maintained Push Maintained Pull, Red, Metal 33532 INS II and III of Hazardous II and III of Hazardous Materials Weight 40 lb Bung Hole Thread Type NPT Gauge (Body Top Bottom) 20 ga 18 ga 18 ga Hazardous Materials Packing Group I Item Anemometer Sensing Method Rotating Vane and Thermistor Velocity (FPM) 100 to 5 Legend No Legend UL Product Type Push Button Operator Ambient Air Temperature For Operation 40 70°C Electrical Shock Protection Class class I IEC 61140 Shock Resistance 30 gn 18 ms) half sine wave acceleration IEC 60068 2 27 50 gn 11 ms) half sine wave acceleration IEC 60068 2 27 Protective Treatment TH Ik Degree Of Protection IK06 IEC 50102 Head Type standard Ip Degree Of Protection IP66 IEC 60529 IP67 IP69 IP69K Reset push pull Device Presentation basic element Device Short Name ZB4 Electrical Composition Code C7 4 single front mounting C8 4 single and double front mounting C11 3 single front mounting C15 1 single front mounting C10 4 single and double front mounting Mechanical Durability 300000 cycles Product Or Component Type head for emergency switching off push button Product Certifications LROS (Lloyds register of shipping) GL DNV CSA UL Listed BV Ambient Air Temperature For Storage 40 70°C Shape Of Signaling Unit Head round Resistance To High Pressure Washer 7000000 Pa 55°C 0