Resistance heaters. Ventilation systems. Air-air exchangers. Air-water exchangers. Cooling units. Control devices. Calculation and selection

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2 Selection guide TO CONTROL THE TEMPERATURE Respects the entered value Compact fixed thermostats Preset factory temperature: NA (blue button):, 0, ºC for the resistance heater. (red button):, 0, ºC for the fan. Small size. Simple assembly by clip on mm DIN rail. High connection power. Fixed double thermostat Preset factory values. Two thermostats in the same housing, operating separately. Simple assembly by clip on mm DIN rail. Large range of adjustments Adjustable thermostats NA (blue button): with normally open contact, when the temperature increases the contact closes, activating the fan to evacuate the heat. (red button): with normally closed contact, when the temperature falls below the setpoint, the contact closes, activating the Resistance heater to prevent condensation. Broad adjustment temperature. Small size. Simple assembly by clip on mm DIN rail. High connection power. Adjustable dual thermostats To control two units independently and simultaneously: a resistance heater and fan. Red button: normally closed contact () for the adjustment of. Blue button: normally open contact (NO) for the adjustment of fans. Double thermostat in the same housing, with separate adjustment and operation. Simple Assembly by clip on mm DIN rail. 0

3 TO CONTROL THE TEMPERATURE Choice of contact NO/ Thermostat Its NO/ inverter controls a resistance heater or a fan. Switching by means of two NO/ contacts. Simple assembly by clip on mm DIN rail. High connection power. Temperature precision Electronic thermostat V DC It can control electrical equipment of V DC by means of a potential-free inverter contact. They have a PTC temperature probe for more precise adjustment and low hysteresis. High DC switching. Low hysteresis - greater precise temperature control. Switching by means of an inverter contact. Simple assembly by clip on mm DIN/EN rail. TO CONTROL THE RELATIVE HUMIDITY Respects the entered value Fixed Hygrostat Factory-adjusted relative humidity: 0% RH. Switching by means of an NO contact. Simple assembly by clip on mm DIN rail. High connection power. Large range of adjustments Adjustable Hygrostat/Hygrometer It is used to adjust the relative humidity in the enclosure: Hygrostat: adjustable relative humidity. Hygrotherm: adjustable relative humidity. Switching by means of an inverter contact. Simple assembly by clip on mm DIN rail. High connection power. 7 07

4 Selection table TO CONTROL THE TEMPERATURE To control a resistance heater Thermostat with NO contact Reference Setting range Display Contact Application Control element Switching power 87 fi xed ºC/ ºF anti-frost 87 fi xed 0 ºC/0 ºF ºC & ºF fi xed ºC/9 ºF NO condensation 87 adjustable 0 º...+0 ºC ºC heat 8778 adjustable º...+0 ºF ºF DC 0W AC 0V A AC 0V 0A To control a fan, an alarm Thermostat with contact Reference Setting range Display Contact Application Control element Switching power 878 fi xed ºC/77 ºF 879 fi xed 0 ºC/8 ºF ºC & ºF 8770 fi xed ºC/9 ºF 87 adjustable 0 º...+0 ºC ºC 8780 adjustable º...+0 ºF ºF DC 0W AC 0V A AC 0V 0A To control two equipments Dual thermostat Reference Setting range Display Contact Application Control element Switching power 877 fi xed 0 ºC/0 ºF ºC/9 ºF NO heat 877 fi xed ºC/9 ºF ºC/ ºF 877 fi xed ºC/ ºF ºC/9 ºF ºC & ºF NO NO alarm heat heat DC 0W AC 0V A AC 0V 0A 87 adjustable 0º...+0 ºC adjustable 0º...+0 ºC ºC NO heat To control a resistance heater or a fan Thermostat with inverse contact Reference Setting range Display Contact Application Control element Switching power 878 adjustable 0 º...+0 ºC ºC inverse or heat Close: DC 0W AC 0V A Open: DC 0W AC 0V 0A To control in DC a resistance heater or a fan Electronic thermostat Reference Setting range Display Contact Application Control element Switching power : Switching 87 adjustable 0 º...+0 ºC ºC V DC to or heat electronic 8 V DC A 08

5 TO CONTROL THE RELATIVE HUMIDITY To control a resistance heater Reference Setting range Display Contact Application Switching power To control a resistance heater or a fan Hygrostat with inverse contact fi xed 0% RH % RH heat DC 0W AC 0 V A Reference Setting range Display Contact Application Switching power adjustable...9% RH % RH inverse heat or DC 0W AC 0 V A TO CONTROL THE TEMPERATURE AND THE RELATIVE HUMIDITY To control a resistance heater or a fan Hygrotherm Reference Setting range Display Contact Application Application Control element Switching power 77 ºC and RH 0V AC adjustable 0º...+0 ºC adjustable % RH ºF and RH ºC and RH 0V AC 0V AC 777 ºF and RH 0V AC inverse (relais) or heat electronic open AC 0V A AC 0V A close AC 0V 8A AC 0V 8A DC V A 7 09

6 Thermostat with NO contact Thermostat with NO contact used for switching off the resistance heater when the temperature rises above the set value. It also increases service life of resistance heaters, since they are switched less frequently. Adjustable temperature from 0 to 0 ºC. Connection: x. mm terminals. 87 C 0 A to 0 V 8778 F 0 A to 0 V AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0.) Connection two-pole terminal for. m Load 0 x x mm 0 g Load = resistance Regulation C Thermostat with contact No closing thermostat, used to start the fan when the temperature rises above the maximum value. As a result, service life of the fan is increased and its filter stays cleaner. Adjustable temperature from 0 to 0 ºC. Connection: x. mm terminals. 87 C 0 A to 0 V 8780 F 0 A to 0 V AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0,) Connection two-pole terminal for. m Load 0 x x mm 0 g Regulation C Load = fan 0

7 Thermostat with C/O contact Thermostat ideally suited to the control of fans, resistance heaters, ventilation racks, thermal exchangers, etc. Enables both signalling and control of temperature within enclosure. Adjustable temperature from 0 to 0 ºC. Connection: x. mm terminals. 878 C (NO) A () 0A Maximum direct current switching AC 0 V 0 A AC 0 V A (inductive load cos φ = 0,) Connection -pole terminal for. mm Charge Load Charge Load > ϑ 7 x 0 x mm 00 g L N Load Charge () (): : resistance résistance Load Charge () (): : fan ur Regulation C Electronic thermostat Hystere. mm DIN rail clip fixing. Thermostat with voltfree dry contact switching relay. Allows high number of switching operations with improved temperature accuracy (± K) thanks to its PTC probe. Thermostat with a low hysteresis making the switching point and setting accuracy more precise. Heating or cooling appliance as well as signal devices can be switched via the potential free change-over contact. 87 C A Regulation C Hysteresis K ± K PTC sonde PTC Connection -pole terminal for. mm to V DC A ABS according to UL9 V C (...+0 ºF) 7 x 0 x mm 80 g + V _ + V 7

8 Fix thermostat with contact Thermostat with contact used for switching off the resistance heater when the temperature rises above the set value. It also increases service life of resistance heaters, since they are switched less frequently. Factory-adjusted temperature. Connection: x. mm terminals. Reference Factory adjusted temperature 87 C / F 87 0 C /0 F 877 C /9 F Caractéristiques techniques Max. rated current 0 A to 0 VAC A to 0 AC AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0,) Connection -pole terminal for. mm Load 0 x x mm 0 g Load = resistance Fix thermostat with NO contact No closing thermostat, used to start the fan. Factory-adjusted temperature. Connection: x. mm terminals. Reference Caractéristiques techniques : Factory adjusted temperature 878 C /77 F C /8 F 8770 C /9 F Max. rated current 0 A to 0 VAC A to 0 AC AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0,) Connection -pole terminal for. mm Load Load = fan Working temperature 0 x x mm 0 g

9 Fix dual thermostat Dual temperature regulator. Two thermostat in one casing. mm DIN rail clip fixing. Factory-adjusted temperature. This unit allows trip control of a fan and a resistance heater, independent setting and operation. Reference Contact Factory adjusted temperature 877 NO NO NO contact 0 C /0 F C /9 F C /9 F C / F C / F C /9 F Max. rated current 0 A to 0 VAC A to 0 VAC DC 0W N L A B N L V V AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0,) Connection -pole terminal for. mm 7 x 0 x mm 90 g Dual thermostat N L A V Dual temperature regulator. thermostats independent setting and operation. mm DIN rail clip fixing. Two thermostat in one casing. Thermostat (contact breaker, normally closed) for regulating heaters. Thermostat (contact maker, normally open) for regulating filter fans and heat exchangers or switching signal devices. 87 C (NO) A () 0A Caractéristiques techniques contact AC 0 V 0 A AC 0 V A AC 0 V/0 V A (inductive load cos φ = 0.) Connection -pole terminal for. mm B C (...+7 F) N L V Regulation C 7

10 Fix hygrostat This device only measures the relative humidity inside the enclosure. It can be used to start up a resistance heater when this relative humidity exceeds the preset value. Factory-adjusted relative humidity. Reference Switching precision humidity % (±%) Permissible air velocity Min. switching power Min. switching power Factory-adjusted relative humidity 877 0% RH m/seg change-over contact 0,000 cycles AC/DC 0 V 00 ma Max. rated current A to 0 VAC DC 0W AC 0 V A AC 0 V 0, A (inductive load cos φ = 0.) DC 0 W Connection -pole terminal for. mm Load Load Load = resistance heater Load = humidifier V0 thermoplastic UL9 light grey 7 x 0 x 7 mm Weignt 00 g C (...+0 F) Hygrostat This device only measures the relative humidity inside the enclosure. It is used to switch on the resistance heater when the humidity rises above the set value. Adjsutable relative humidity from 0 to 90%. 870 % RH A to 0 V/AC to 9 % RH Switching precision humidity % (±%) Permissible air velocity m/seg change-over contact Résistance de contact cycles Min. switching power AC/DC 0 V 00 ma AC 0 V A AC 0 V A (inductive load cos φ = 0.) DC 0 W Connection -pole terminal for. mm Load Load Weignt V0 thermoplastic UL9 7 x 0 x 7 mm 00 g C (...0 F) Load = resistance heater Load = humidifier

11 Hygrometer switch Load The device independently measures the temperature and humidity within the electrical enclosure. The resistance heater is switched on when either of the limiting values set for the two parameters is exceeded: the temperature rises and the relative humidity RH falls. The hygrometer switch should be preferably be installed in the upper part of the enclosure at a minimum distance of 0 cm from the resistance heater. Adjustable temperature from 0 to 0 ºC. Adjsutable relative humidity from 0 to 90%. Hysteresis: C, % RH. : >00,000 cycles. Reference Display Voltage 77 C 0 V AC 77 F 0 V AC 79 C 0 V AC 777 F 0 V AC Operating voltage Switching precision AC 0 V, 0/0 Hz temperature K (± K) Switching precision humidity % (±%) Response time intensity approx. 0 seg. change-over contact AC 0 V 8A AC 0 V/0 V A (inductive load cos φ = 0.) DC 0 V 0, A DC 8 V 0,8 A DC V 8 A Connection -pole terminal for. mm plastique UL9 V0, light grey 7 x 0 x 9 mm 00 g vertical C (...0 F) Power-on indicator LED 7