This series adjustable resistors are constructed of 8 wirewound tubes can be powered with about 65% of the corresponding nominal load of the fixed types with corrugated wire for extra high demands on surge or pulse load. They are wirewound enameled or cement coated resistors with an open area along the resistors where the resistor wire is un-coated.
1.Long term high stability
2.non-inductive or inductive type options
3.high operating voltage(up to 1.2KV) and high power ratings(up to 120KW)
4.terminals suitable for soldering or bolt connection
5.Available covered in stainless steel AISI 304. Case made in zinc plated steel or in stainless steel or in aluminum plated steel if requested.
1.Rated power: 200W-120KW, based on 25℃ free air rating
2.Resistance values: from 1Ω to as high as 10 KΩ( to 100 KΩ on request)
3.Temperature Coefficients:25,50 and 100ppm/℃ or as required
4.Operating Temperature:-55℃ to +225℃
5.Insulation Resistance: >1000MΩ (500V 25℃ 75% relative humidity)
6.Dielectric strength: >3.0KV 50Hz 1min(25℃ 75% relative humidity)
7.IP protection: IP00, IP20 or as required
8.Element material: OCR25AL5/CrAlFe/CrNi/CuNi
9.Lead material: Brass Caps(lug terminations available)
10.Encapsulation: Silicone conformal coating
1.simulation load testing, capacitor charging & discharging,
2.automation control , inverter's energy loss brake,
3.crane systems, various steel mill applications and transit applications, neutral grounding.
4.filter,electrical machinery general use, available through distribution