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  • SY21(Bayonet)

    Panel hole cutout size: 21mm IP67 waterproof connector·Bay

SY21(Bayonet)Please click below picture to view more details

SY21 Series Mating diagram

Material and spec

Coupling Type Bayonet Coupling
IP Rating IP67
Material Plastic
Shell Nylon66, fire resistance:V-0
Insert Material PPS max temperature 260℃, fire resistance:V-0
Contact Material Brass with gold plating
Termination Solder/Screw/Crimp
Cable outer diameter range Ⅰ: 4.5-7mm   Ⅱ: 7-12mm
Mating cycle >500
Temperature range -25℃~+85℃
Insulation resistance MΩ 2000

Contact arrangement and spec for solder/screw

Number of contact 2 3 4 5 5B 5C 7 9 12
Male contact face view
Rated current (A) 30A 30A 30A 30A 5A、30A 15A 15A 5A 5A
Contact diameter 3×2 3×3 3×4 3×5 1×3
3×2
2×5 2×7 1×9 1×12
Termination solder
screw
solder
screw
solder
screw
solder
screw
solder
screw
solder solder solder solder
Rated voltage(AC.V) 500V 500V 500V 500V 500V 500V 500V 500V 400V
Test voltage(AC.V)
1 min
1500V 1500V 1500V 1500V 1500V 1500V 1500V 1500V 1200V
Contact resistance mΩ 1 1 1 1 5、1 2.5 2.5 5 5
Wire size mm² /AWG ≤4.17/11 ≤4.17/11 ≤4.17/11 ≤4.17/11 ≤0.785/18
≤4.17/11
≤2/14 ≤2/14 ≤0.785/18 ≤0.785/18

Crimp contact arrangement and spec

Number of contact 2 3 5 7 8
Male contact face view
Rated current (A) 25A 25A 10A 10A 5A
Contact diameter 2.5×2 2.5×3 1.5×5 1.5×7 1×8
Rated voltage(AC.V) 500V 500V 500V 500V 500V
Test voltage(AC.V)1 min 1500V 1500V 1500V 1500V 1500V
Contact resistance mΩ 1 1 2.5 2.5 5
Insulation resistance mΩ 2000 2000 2000 2000 2000

 

The SY21, SY17 and SY13 serious are IP67 connectors, bayonet coupling, they have the same size and same electric spec as SP13/17/21, but IP67, SY21 is our large-size plastic shell, IP67 waterproof connector, the specialty of SY21 connector is bayonet coupling, it is designed for applications that need quick locking and frequent plug on/off mating.
The connectors can be used for both cable to cable (in-line) and cable to panel-mount connections. Each side can be male or female contact, (Plug or socket versions), currently the IP67 sealing caps are available only for panel connector.
1) shell diameter (the panel hole cutout diameter): 21mm
2) number of contacts : 2 -12 gold plated contacts
3) rated current and V : 30A-5A , 500V-400V, .
4) cable outer diameter acceptance:  type I: 4.5-7mm , type II: 7-12mm 
5) CE , ROHS approval
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