New Hella universal 12V relay.  This is a common 12V, 30 Amp relay for controlling many devices, such as an electric fan, fuel pump, nitrous solenoid, fog lamps, lighting, etc.  This plastic relay housing has an integrated tab for mounting. Tabs are standard .250 style.  5-pin style for NO/NC operation, single throw (common usage).  On-off control can be utilized be either a +12V switched supply or switched ground supply.  Relays are sold individually.  Quality relay by name brand Hella.   Wiring notes :