This high-power electronic relay is to be used as the main relay supplying 12 volts after key to the engine management.
The relays Mahle MR 105 and Nagares RP250/1-12 are totally identical.

Installation and operation:
• 12 volts battery
• 300 Amperes
• 2-way connector with terminals and mounted wires + 2 power terminals diameter 8mm
• With fixing lug

This relay is supplied with the harness and connector that allow it to be started:
• Pin 1 (red wire) is connected to the weak power 12 volts output of the dashboard switch to start the 12 volts after key
This is the pin that starts the relay using the dashboard switch.
• Pin 2 (black wire) is connected to ground
• Pin 3 is connected to the 12 volt terminal of the battery
• Pin 5 provides the power 12 volts after key when relay is started