This series of explosion-proof temperature-controlled heaters is mainly characterized by being suitable for heating in environments with water and high humidity. They are primarily used for winter insulation in explosive hazardous areas and high-humidity environments. This product is an all-cast aluminum alloy radiator-type heater, with low designed power load and large heat dissipation area. It has dual temperature protection devices.
The explosion-proof performance of this series of heaters complies with GB3836.1—2000 "Electrical Apparatus for Explosive Gas Atmospheres Part 1: General Requirements" and GB3836.2—2000 "Electrical Apparatus for Explosive Gas Atmospheres Part 2: Flameproof Enclosure 'd'". The explosion-proof type is flameproof, with explosion-proof marking ExdIIBT3, and has been reviewed and tested by the nationally designated explosion-proof inspection unit for drawings, technical documents, and samples, obtaining the product explosion-proof certificate.
2. Equipment performance parameters and model, explosion-proof marking meaning:
2.1 Performance parameters and technical indicators
Equipment power supply voltage: 110/220/380VAC
Equipment insulation resistance: ≥10MΩ
Equipment insulation strength: 1500V
Temperature protector set temperature: inside heating plate 160℃; heating plate surface 195℃.
Equipment explosion-proof marking: ExdHBT3
Enclosed heating standard usable space: 15m³/kW
Heating equivalent: 860 kcal/kWh
Continuous working time: ≥5000 hours
Power frequency impulse voltage: 2000V/1min
Enclosure protection rating: IP55
2.2 Product model and the meaning of its explosion-proof marking are specified as follows:
Example: SBwk-3-□
SBwk————Product code 3————Design number
□————Rated power
ExdIIBT3
Ex————Explosion-proof mark d————Flameproof type
IIB———Explosive mixture group T3—Maximum surface temperature class
