PTC Heater (SHT)

SHT – PTC heaters with connection on terminals, 25-150W

PTC Heater (SHT-W)

SHT-W – PTC heaters with wires connection, 15-50W

PTC Heater UL ( HT)

HT– Compact PTC heaters with minimum lateral size, 25-150W

PTC Heating Touch Safe Serie UL (STHT)

STHT – PTC heaters with touch safe, 25-150W

Fan-assisted Heater UL (FSHT)

FSHT – PTC heaters with fan, 250-750W

Fan-assisted Heater (FPH)

FPH – Heaters with fan, 1200-2000W

PTC Heater (MHT)

MHT – Compact PTC heaters, 5-30W

Compact Fan-assisted Heater (FMHT)

FMHT – Compact PTC heaters with fan, 75-300W

Compact Fan-assisted Heater (FMHT-S)

FMHT-S – Compact PTC heaters with fan, 25-150W

Riscaldatori ventilati Touch Safe (TMX)

TMX – PTC heaters with fan and touch safe, 25-150W

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 and FMHT series in Class I.

Quick Installation

Alfa electric’s heaters are quick and easy to install. All model are designed to be installed on DIN rays of 35 mm EN 50022.

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