Punched steel grid resistors consist of grids punched from corrosion resisting SS 304 grade Steel or a high-grade FrCrAl Alloy.
The plates may be switched in series and parallel. As a result, every conceivable resistance value can be realised quickly and easily.
Steel-grid resistors consist of steel elements or plates punched in a meandering pattern.
For mechanical stability the longitudinal sides of the grids are reinforced to allow the plates to be assembled into blocks with insulated threaded bolts.
Thanks to the large surface area, this structure results in particularly good heat emission and is therefore suitable for high continuous outputs. In addition, the large mass of the resistor packages permits very high impulse loads.
|Outer Case||120 GSM Galvanized MS CRCA Sheet or MS CRCA Sheets duly powder coated|
|Enclosure Sheet Thickness||1.2/1.6/2.0/2.5 mm|
|Mounting||Floor Mounting / Wall Mounting|
|Base Stand/Stool||Extra Stool can be provided in required|
|Cable Entry||Bottom Entry / Side Entry / Top Entry|
|Ingress Protection (IP) Rating||IP20-IP43|
|Resistor Element||SS304 Punched Grid Plates|
|Insulators||Ceramic Insulators provided between SS304 plates|
|Operating Voltage||600VAC (850VDC) / 690VAC (1100VDC)|
|Cooling||Natural Air Cooling / Forced Cooling|
|Peak Power||150% for 1 min|
|Insulation Voltage||2500 VAC / 1 min|
|Terminals||Copper/Aluminium Busbar Links or Stud Terminals|
|Ambient Temperature||50 °C|
|Operating Temperature||Maximum 375 °C over ambient|
|Insulation Resistance||> 20 MΩ at 1000VDC|
|Dielectric Strength||No breakdown at 2.5 kVAC RMS|
|Earthing Bolt||M8 Size Bolt|