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🔌 Connect with confidence — waterproof, powerful, and precision-engineered!
The SZJELEN SP21 series offers IP67-rated waterproof circular connectors with a 21mm panel mount thread, supporting 2 to 12 pins. Designed for demanding electrical environments, it handles up to 30A current and 1500V withstand voltage, made from durable brass and plastic materials to ensure reliable, long-term performance in aviation and industrial applications.
| ASIN | B07YWLM511 |
| Amperage | 30 A |
| Best Sellers Rank | #5,432 in Audio & Video Connectors & Adapters |
| Brand | SZJELEN |
| Brand Name | SZJELEN |
| Color | Plug Male & Socket Female |
| Connector Type | 2pin-12pin |
| Customer Reviews | 4.3 out of 5 stars 142 Reviews |
| Item Weight | 18.14 g |
| Manufacturer | SZJELEN |
| No. of wires | 2 |
| Number Of Poles | 2 |
| Number Of Wires | 2 |
| Number of Items | 1 |
| Number of Poles | 2 |
| Plug Format | Type A |
| Plug Type | Type A |
| Specification Met | CE, IEC, UL |
| UPC | 729257496106 |
M**I
Everything as described
This is for the 3 pin version. Used to replace the worn plug and socket of my Weller WTCPR soldering station. A bit of overkill, and station needed some modification, but works great!
P**X
Great Value
Nice little water resistant bulkhead connector at a very reasonable price. Well constructed with o-rings at all joints.
R**.
2 pin connector
Well made and works as advertised. I purchased the 2-pin version. Will buy again but with other pin styles.
R**S
A little more work but worth it
We'll have to solder wires to pins just for your information
J**R
I liked it.
I needed to pass 60 volts 10 ps DC current into an enclosure and it's a good fit. Large connector solder points on the 2 pin. It's not that brittle and cheap as people say. It pretty good. I don't regret buying it. I needed something good for a CNC enclosure and not junk. It's not junk. I used metal aviation plugs for everything else but plastic for 600 watts DC makes me feel safer because no ground is used.
L**I
Even tech drawings are incorrect!
Careful, Tech drawings are incorrect I used CAD to create a perfect template based on their drawings. Fabricated the panel, and discovered that their dimensions are all incorrect. Distance between mounting holes are not 24 mm! Wasted hours and materials! Makes you wonder about the quality of the product if they can't even get their CAD drawings correct!
T**Y
Meet or exceeded my expectations and seem very durable.
They work well for the redesign of the battery charging system for my 1983 golfcart. I do NOT charge at the original 30+amp rate, I only charge at 10 amps or less and split the battery pack in to 12-volt sections. This takes a little thought and planning; results will vary by individual user implementations.
R**I
Well made connector that is actually waterproof.
Easy to use to install. Used the connectors on an outdoor control box for a backyard lighthouse.
B**N
feel cheap
these worked fine they do seem a bit cheap time will tell how they handle the cold
M**S
Sturdy but small Connections for 30A
Great price for this sturdy product. Beware very small connectors (that must be soldered) for a 30amp connector. Used 10AWG & had to use connectors with solder. Challenging. Maybe package could include male connectors? Just an opinion.
N**.
Good quality construction.
Looks like it's fiber impregnated nylon. Took heat from the soldering gun without melting around terminals. Seems pretty strong. Great for low voltage use.
Trustpilot
3 weeks ago
2 months ago