HEATING
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HEATING Anticondensation Heaters Application Enclosure heaters are often necessary to prevent failures or corrosion caused by low temperatures or high humidity inside the enclosure. Such conditions are likely to occur when ambient temperature is low and the equipment inside the enclosure is not powered or fails to dissipate enough heat to keep enclosure temperature above the minimum threshold. Outdoor enclosures, for instance, are almost always in such conditions. Safety According to the type of heater, surface temperature is limited either by a PTC or by an over temperature safety switch. This allows a safe operation and a self-adjusted heating power. All heaters are in Class II, except FSHT, FPH and FMHT series in Class I. Wide range of solutions Alfa Electric offers a wide range of solutions, all for DIN rail mounting: SHT – PTC heaters with connection on terminals, 25-150W SHT/W – PTC heaters with wire connection, 15-50W FSHT – Resistor heaters, fan assisted, 250-750W MHT – PTC mini heaters, 5-30W FMHT – PTC mini heaters, fan assisted, 75-300W FPH – PTC fan heaters, 1200-2000W Fast installation Installation is fast and simple. All units are designed for fast mounting on 35mm DIN EN 50022 rail. Enclosure surface (m²) Example: Enclosure surface 3m2 Temperature difference 10K Heating capacity required 170W Possible heater solutions: ael-cat-en-15.01 - Specifications, values and drawings are subject to change without notice. Anticondensation heaters selecti

PTC HEATERS, TERMINAL CONNECTION Features Unit Heating Capacity* W Power supply V Inrush current A Delayed fuse (advised) A Heating element type Electrical connections Protection class IEC Protection degree EN60529 Operating temperature °C (°F) Storage temperature °C (°F) Radiator Mounting Installation position Dimensions HxWxD mm Weight kg Conformity *at 20°C (68°F) ambient temperature SHT75 SHT100 SHT125 75 100 125 110-250V AC or DC 3.5 4 5 7 4 6.3 8 8 PTC resistor, self regulating 2 screw terminals for stranded or rigid wire 2.5 mm² Class II IP20 -45/+70 (-49/+158) -45/+80 (-49/+176)...

PTC HEATERS, WIRE CONNECTION Accessories Thermostat NC 0-60°C Double thermostat NC 0-60°C NO 0-60° Hygrothermostat 0-60°C 30-90%RH Hygrostat 10-90%RH SHT25W SHT50W 25 50 110-250V AC or DC 2 2.5 3.5 4 4 6.3 PTC resistor, self regulating Silicon cable, 2x0.5 mm², length 400 mm Class II IP20 -45/+70 (-49/+158) -45/+80 (-49/+176) Extruded aluminium profile, anodized Clip for mounting on DIN rail 35 mm EN50022 Best efficiency in vertical position 50x50x80 60x50x80 80x50x80 400 400 400 0.20 0.24 0.29 CE ael-cat-en-15.01 - Specifications, values and drawings are subject to change without notice....

Compact heaters series with minimum DIN rail foot-print. Features Unit Heating Capacity* W Power supply V Inrush current A Delayed fuse (advised) A Heating element type Electrical connections Protection class IEC Protection degree EN60529 Operating temperature °C (°F) Storage temperature °C (°F) Radiator Mounting Installation position Dimensions HxWxD mm Weight kg Conformity *at 20°C (68°F) ambient temperature HT75 HT100 HT150 75 100 150 110-250V AC or DC 2.5 3.5 4 5 9.5 4 4 6.3 8 10 PTC resistor, self regulating Silicon cable, 2x0.5 mm², l. 400 mm 2 screw terminals for stranded or rigid...

TOUCH SAFE PTC HEATERS Optimized design to achieve lower surface temperature and increased heat transfer efficiency. A thermo-resistant plastic shield surrounds the unit to prevents direct contacts with high temperature internal parts. Features Unit Heating Capacity* W Power supply V Inrush current A Delayed fuse (advised) A Heating element type Electrical connections Protection class IEC Protection degree EN60529 Operating temperature °C (°F) Storage temperature °C (°F) Radiator Mounting Installation position Dimensions HxWxD mm Weight kg Conformity *at 20°C (68°F) ambient temperature...

FAN ASSISTED, RESISTOR HEATERS Features Heating Capacity Power supply Max. current Heating element type Thermal protection Radiator Unit FSHT250 FSHT251 FSHT400 FSHT401 FSHT500 FSHT501 FSHT750 FSHT751 W 250 250 400 400 500 500 750 750 V/Hz 230/50-60 115/50-60 230/50-60 115/50-60 230/50-60 115/50-60 230/50-60 115/50-60 A 1.2 2.4 1.9 3.8 2.4 4.8 3.6 7.2 Resistor Thermal cut out fuse in case of fan failure Extruded aluminium profile, anodized Ball bearing, service life 50.000 hrs at 25°C (77°F) Axial fan air flow rate 44 m³/h, free flow air flow rate 35 m³/h, free flow Signalling Green LED power...

Features Heating Capacity Power supply Heating element type Thermal protection Casing Axial fan Control operation Electrical connections Alarm output Protection class IEC Protection degree EN60529 Operating temperature Storage temperature Mounting Installation position Dimensions HxWxD Weight (with packaging) Conformity FPH1500 FPH1501 FPH2000 FPH2001 1500 1500 2000 2000 230/50-60 115/50-60 230/50-60 115/50-60 PTC resistor, self regulating Thermal cut out in case of fan failure (auto-reset for 100,000 cycles) Plastic according to UL94 V-0, black Ball bearing, service life 50.000 hrs at 25°C...

Features Unit Heating Capacity* W Power supply V Inrush current A Delayed fuse (advised) A Heating element type Electrical connections Protection class IEC Protection degree EN60529 Operating temperature °C (°F) Storage temperature °C (°F) Radiator Mounting Installation position Dimensions HxWxD mm Cable length mm Weight (with packaging) kg Conformity *at 20°C (68°F) ambient temperature MHT15 MHT30 15 30 110-250V AC or DC 1.5 2 3 4 4 4 PTC resistor, self regulating Silicon cable, 2x0,5 mm², length 400 mm Class II IP20 -45/+70 (-49/+158) -45/+80 (-49/+176) Extruded aluminium profile,...

FAN ASSISTED, COMPACT HEATERS Features Heating Capacity Power supply Max. current Heating element type Radiator Axial fan FMHT150 FMHT230 150 230 Heater 230V AC - Fan 24V DC 0.45 0.65 1.00 resistor Extruded aluminium profile, anodized Ball bearing, service life 50.000 hrs at 25°C (77°F) air flow rate 11 m³/h, free flow Electrical connections Protection class IEC Protection degree EN60529 Operating temperature °C (°F) Storage temperature °C (°F) Mounting Installation position Dimensions HxWxD mm 97x41x66 Weight (with packaging) kg 0.20(0.21) Conformity *0.5-2.5 mm² solid wire *0.5-1.5 mm²...