Anderson style 
Heavy duty connectors
Anderson Plugs have heavy duty, DC rated two circuit connectors. Genderless design so they plug into each other.  Silver plated solid copper contacts, spring-loaded contacts to resist vibration arcing. Ideal for high load applications such as:
solar panels, trailer winches, trolling motors, audio amps, battery connections.
 
Anderson Plug Features:
Heavy duty construction
2 DC rated circuit connectors
Self cleaning contact design
Durable grey housing with contact springs
Silver plated solid copper contacts
Spring loaded contacts to resist vibration arcing
 
Max Current Rating: 50A
Max Voltage Rating: 600v
Wire Gauge (AWG): 6 to 16
Wire Gauge (mm2): 16 to 1.5
 
Contents: Connector housing + 2 contacts
Note: Sold individually. Two required to make a connection.