SP21 2 3 4 5 7 9 12 PIN WATERPROOF CONNECTOR
IP68 POWER CABLE AVIATION Screw Panel PLUG SOCKET

 2pin, 3pin,4pin,5pin:
Rated Current (A): 30A
Contact diameter × number: Φ3x2 / Φ3x 3 / Φ3x 4 / Φ3x5
Rated voltage (AC.V.): 500V
Withstanding Voltage (AC.V) 1 minute: 1500V
Contact resistance: 1mΩ
Wire specification: <4.0m㎡/11AWG

7pin, 9pin:
Rated Current (A): 7pin-15A,  9pin-5A
Contact diameter × number:  Φ2.0x7  Φ1.0x9
Rated voltage (AC.V.): 500V
Withstanding Voltage (AC.V) 1 minute: 1500V
Contact resistance: 2.5mΩ （7pin）5mΩ（9pin）
Wire specification: <2.0m㎡/14AWG（7pin）
<0.785m㎡/18AWG（9pin）

12pin:
Rated Current (A): 5A
Contact diameter × number: Φ1 x12 
Rated voltage (AC.V.): 400V
Withstanding Voltage (AC.V) 1 minute: 1200V
Contact resistance: 5mΩ
Wire specification: <0.785m㎡/18AWG

Material: Plastic
IP Rating: IP68
Shell: Nylon66
Fire Resistance: V-0
Contact Material: Brass with Gold Plating
Termination: Solder
Cable Outer Diameter Range: I: 4.5-7mm II: 7-12mm
Mating Cycle: >500
Temperature Range: -25~+85℃
Insulation Resistance : 2000mΩ

What's in the package: (as to your choose)
 1  plug + 1 socket with cap