Danotherm WHBS resistors are liquid-cooled, high-powered brake resistors designed for use in harsh environments like marine and harbour applications. Freshwater or water with glycol serves as the coolant. WHBS 16 series resistors feature a fully welded steel tank with tank lengths ranging from 300 to 2100 mm. The resistive elements are steel tubes welded to a flange fitted in the tank. The inlet/outlet are either on the top side of the tank or at the rear side.
Power ratings for WHBS 16 series resistors range from 6 to 200 kW, and the working voltages are 1000 VAC / 1400 VDC. Depending on the resistance, the resistors can handle up to four times the nominal power rating for a 5-second pulse/120s.
AISI 304 stainless steel is the standard material for the tank, connection box, and resistor elements. AISI 316 stainless steel is optional material for the tank and connection box. AISI 316 / AISI 321 stainless steel or INCOLOY 800 alloy is available as optional materials for the resistor elements. Thermal protection comes as a standard feature. Moisture protection, air bubble protection, and PT100 temperature sensor are available options.
WHBS 16.3 series resistors with M6 terminals or cable lugs are without connection box and have IP00 rating. WHBS 16 with connection box are IP65 / IP66 rated.
WHBS 32 series resistors are designed for high-voltage applications and feature a fully welded steel tank measuring 485 mm. The resistors feature mica-insulated resistor elements. The coolant inlet/outlet are on the rear side. Power ratings for WHBS 32 series resistors range from 3 to 6 kW, and the working voltages are 1000 to 3000 VAC. Depending on the resistance, the resistors can handle up to ten times the nominal power rating for a 5-second pulse/120s.
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