Mechanical thermostats Tested to ATEX 94/9/EC 118 Ex-TX Protection class with immersion tube: ii 2G Ex d e iic T6 Gb ii 1/2D Ex ta/tb iiic T80 c Da/Db Rod thermostats are suitable for direct installation in tanks, pipelines and air ducts. The immersion wells can be fitted in advance. Sil 2 according iEc 61508-2 Ex-TX490 Technical data Housing Diecast aluminium GD Al Si 12 according to DIN 1725. Product Summary Type Setting range Mounting position vertically upright Permitted ambient -20...+60C temperature at switching device Permitted temSee Product Summary perature at sensor Contact arrangement Single pole changeover switch Switching capacity 8 (5) A 250 VAC Degree of protection IP 65 according to DIN EN60529 (with vertical installation) Calibration Scale value corresponds to the lower switching point (with falling temperature), the upper switching point is higher by the amount of the switching differential Switching temperature Adjustable from outside with screwdriver Switching Not adjustable Switching differential (mean values) at sensor Max. permissible temperatur immersion depth 135 mm Ex-TX023 -20 to + 30 C Ex-TX150 +10 to + 50 C Ex-TX490 +40 to + 90 C 1.5 K 1.5 K 2.5 K 110 C 110 C 125 C immersion depth 220 mm Ex-TXB023 -20 to + 30 C Ex-TXB150 +10 to + 50 C Ex-TXB490 +40 to + 90 C 1.5 K 1.5 K 2.5 K 110 C 110 C 125 C + Accessories Immersion tube type R10/MS, R20/MS, R10/NST, R20/NST, page 157. Immersion tubes for NPT thread on request. Dimensioned drawings (mm) Switching housing 700 (terminal connection, Ex-d) Switching housing Temperature sensor s Protection Class: IP 65 1. Type of ignition protection Ex-d, Ex-e and Ex-t: The thermostat with protection type "Flameproof Ex-d and Increased Saftey Ex-e" can be used in hazardous areas of zone 1 and 2 for flammable gas mixtures. For use in dust atmospheres, the protection is "prtected by enclosure Ex-t". The thermostat may be used in hazardous areas of zones 21 and 22 for explosive dusts. In addition, for the dust - explosion protect zone 20 on the sensor (device screwed into container walls, which may occur in the interior permanent dust atmosphere). The permissible values for switching voltage, switching capacity and ambient temperature please refer to the detailed description of the Ex equipment, and the installation and operating instructions. In addition, please note the general rules for the use and installation of equipment in hazardous atmosphere. Special circuits, as well as versions with adjustable switching differential or internal interlock (reclosing lock) are not possible. Isolating amplifier 2. Ignition protection Ex-i All thermostat with features for intrinsically safe circuits can be used in hazardous areas Zone 1 and 2 (Gas) and zones 21 and 22 (Dust). A circuit is considered to be "intrinsically safe" if the amount of energy conveyed therein is not capable of generating an ignitable sparks. This thermostat can only be operated in combination with a suitable isolating switching amplifier, which is approved for the type Ex-i. Because of the low voltages and currents in intrinsically safe circuits, micro switches with gold contacts are used for temperature monitors with automatic reset. FEMA thermostats for use in intrinsically safe circuit are marked by blue terminals and cable entries. In addition, the thermostats has been tested by a "notified body". The units get a serial number and the nameplate inform about the ignition protection and registration number. Ingniton protection for pressure monitoring in Zone 0 (20), 1 (21) and 2 (22) Pressure-proof encapsulation Ex-d (EN60079-0:2009) Intrinsically safe Ex-i Enhanced safety Ex-e (EN60079-7:2007) (EN 60079-11:2012) Protection via housing Ex-t (EN60079-31:2009) T...-513, ...-563 Ex-T... Marking, use in thermowell: s 0035 II 2G Ex d e IIC T6 Gb s 0035 II 1/2D Ex ta/tb IIIC T80C Da/Db Exception: EX-TRM...: s 0035 II 2G Ex d e IIC T6 Gb s 0035 II 2D Ex tb IIIC T80C Db Marking: s 0035 s 0035 ATEX approval for the complete switching device ATEX approval for the complete switching device ATEX approval for isolating amplifiers Thermostat with a silver contact Thermostat with gold-plated contacts Switching capacity: max. 3 A, 250 VAC min. 2 mA, 24 VDC Rated value without resistor combination ...-513 /...-563: Ui: 24VDC Ii: 100mA Ci: 1nF Li: 100H Thermostat can be installed within the Ex-Zone Thermostat will be installed in Ex-Zone. The isolating amplifier must be installed outside the Ex-Zone. II 2G Ex ia IIC T6 Gb II 2D Ex ia IIIC T80C Db Pressure switches Pressure transmitters The following alternatives are possible: Thermostats T emperature switches with special equipment can also be used in explosion risk areas Zone 1, 2 and 21, 22. Temperature sensors in explosion-endangered areas Flow monitors Temperature monitoring Solenoid valves 117 Accessories Mechanical thermostats Tested to ATEX 94/9/EC 101 Mechanical thermostats Principal technical data version ...700 (Ex-d) Switch housing Switching function and connection scheme (applies only to version with microswitch) Diecast aluminium GDAISi 12 Floating changeover contact With rising pressure single pole switching from 3-1 to 3-2 Diecast aluminium GDAISi 12 Floating changeover contact. With rising pressure single pole switching from 3-1 to 3-2 Switching capacity (applies only to version with microswitch) max. 100 mA, 24 VDC min. 2 mA, 24 VDC Mounting position Vertical or horizontal, vertically upright IP 65 3 A at 250 VAC 2 A at 250 VAC inductive 3 A at 24 VDC 0.03 A at 250 VDC min. 2 mA, 24 VDC Vertically upright cable entry Ambient temperature Switching point M 16 x 1.5 -15 to +60 C Adjustable with spindle after the terminal box cover is removed M 16 x 1.5 -20 to +60 C Adjustable with spindle after the terminal box cover is removed Switching differential Medium temperature Vibration strength not adjustable Not adjustable Max. 60 C Max. 60 C No significant deviations up to 4 g. At higher accelerations, the switching differential is reduced slightly. Use over 25 g is not permitted. Overvoltage category III, contamination class 3, reference surge voltage 4000 V. Conformity to DIN VDE 0110 is confirmed. Sensor systems room sensor TrM capillary tube sensor TAM rod sensor TX+r10 Air duct sensor TX+r6 Temperature sensors Terminal connection Flow monitors Electrical connection s 0035 ii 2G Ex d e iic T6 Gb s 0035 ii 1/2D Ex ta/tb ilic T80 c Da/Db Exception: EX-TrM...: ii 2G Ex d e iic T6 Gb ii 2D Ex tb iiic T80c Db Terminal connection isolation values ii 1/2G Ex ia iic T6 Ga/Gb ii 1/2D Ex ia iilc T80 c Solenoid valves IP 65 Accessories Protection class (in vertical position) Explosion protection with immersion well Thermostats ...500 (Ex-i) Pressure transmitters Terminal connection Pressure switches Mechanical thermostats Principal technical data Mouser Electronics Authorized Distributor Click to View Pricing, Inventory, Delivery & Lifecycle Information: Honeywell: EX-TXB490 EX-TX150 EX-TXB150 EX-TX490 EX-TX023 EX-TXB023