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🔌 Connect Like a Pro — Waterproof, Powerful, Perfected.
The SP21 series 2Pin-12Pin panel mount circular connectors deliver IP67 waterproof protection and robust electrical performance with a 30A/500V rating. Featuring durable brass contacts and a secure 21mm threaded locking mechanism, these aviation-grade connectors are engineered for demanding industrial, medical, and communication applications. Certified to CE, IEC, and UL standards, they ensure reliable, corrosion-resistant connections in harsh environments.
| ASIN | B07YWLM511 |
| Amperage | 30 Amps |
| Best Sellers Rank | #1,137 in Audio & Video Connectors & Adapters |
| Brand Name | SZJELEN |
| Color | Plug Male & Socket Female |
| Connector Type | 2pin-12pin |
| Customer Reviews | 4.3 4.3 out of 5 stars (137) |
| Item Weight | 0.64 Ounces |
| Manufacturer | SZJELEN |
| Material Type | Brass, Plastic |
| Number Of Wires | 2 |
| Number of Poles | 2 |
| Plug Type | Type A |
| Specification Met | CE, IEC, UL |
| UPC | 729257496106 |
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
T**H
Sturdy and very well made
Nicely made connector. You do need to be a little careful not to overheat the terminals when soldering to it. Use flux!
Q**N
Great power project DC connector.
Seems to be a quality connector so far.
T**.
poor quality
cheap plastic, poorly thought out waterproofing pressure, threaded components cross-thread very easily.
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.
J**M
Good for regular projects.
These connectors are good for everyday projects where they will not see a lot of connection and disconnection. They feel cheaply made and I'm not convinced about the water tightness. They were fine for my project. They call these "Aviation Plugs." I hope they are never used in any airplane that I have to fly in!
B**N
these worked fine they do seem a bit cheap time will tell how they handle the cold
N**.
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
1 week ago
1 day ago