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HELLA 4RD 933 332-581 
Substitutes
Substitutes Relay, main current
Capacitive Load: 30ACapacity at 12V: 20A/30AColour: BlackCombi Switch Function: Changeover Contactfor OE number: 13171831Inductive Load: 35ANumber of pins: 5-pin connectorOhmic Load: 40AProtection Type (IP Code): IP54Relay function: Air SuspensionRelay function: Clamp 15Relay function: Comfort Equipment Variant (trim package)Relay function: Engine control unitRelay function: Fan, heater/air conditioningRelay function: IndicatorRelay function: Secondary Air SystemSupplementary Article/Info 2: with resistorVoltage: 12V