SP28 connectors feature fully sealed housing, preventing water, dust, and corrosion ingress. Ideal for outdoor power systems, industrial equipment, and harsh-environment devices requiring reliable, long-term waterproof connectivity.
Available in 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 16, 19, 22, 24, 26 pins, enabling power distribution, multi-signal control, and complex data communication across industrial, marine, and field applications.
Flame-retardant PC/Nylon66 shells with PPS inserts and gold-plated brass contacts ensure resistance to mechanical stress, corrosion, and temperature variation, providing a long service life in demanding environments.
The back-nut panel mount allows secure and vibration-resistant installation, making SP28 suitable for control panels, junction boxes, machinery housings, and mobile electronic equipment.
Solder cup contacts provide stable electrical performance with low resistance, enabling straightforward assembly, repair, or customization of wiring harnesses for industrial or outdoor devices.
| Feature | Specification |
| Housing Material | Thermoplastic PC, PA66; Flame Retardant Rating: V-0 |
| Pin Material | Brass/Phosphor Bronze with Gold Plating |
| Sealing Material | Epoxy Resin/Rubber |
| Connection Method | Threaded Locking |
| Wiring Method | Soldering/Screw Crimping |
| Contact Resistance | ≤5mΩ |
| Mating Cycles | ≥500 times |
| Insulation Resistance |
≥100mΩ
|
| Insulation Resistance | 2000 KΩ |
| Operating Temperature | -25℃ ~ +85℃ |
| Straight Male Plug | Straight Female Plug |
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| Angled Male Plug | Angled Female Plug |
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| Straight Mating Male Plug | Straight Mating Female Plug |
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| Front Mount Male Socket | Front Mount Female Socket |
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| 2-Hole Flange Mount Male Receptacle | 2-Hole Flange Mount Female Receptacle |
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| Pins | 2A |
3A | 4A | 3 | 5 |
6 | 7 | 9 |
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Insulator Front View |
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Rated Current(A) |
45 | 45 | 45 | 25 | 25 | 25 | 25 | 10 |
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Contact diameter(mm) |
φ3.6×2 | φ3.6×3 | φ3.6×4 | φ2.8×3 | φ2.8×5 | φ2.8×6 | φ2.8×7 | φ1.8×9 |
|
Operating voltage(AC.V) |
380 | 380 | 380 | 380 | 380 | 380 | 380 | 380 |
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Pressure resistance(AC.V) 1 min |
1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 |
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Contact resistance(mΩ) |
0.5 | 0.5 | 0.5 | 1 | 1 | 1 | 1 | 2 |
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Insulation resistance(MΩ) |
2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
| Pins | 10 |
12 | 14 | 16 |
19 | 22 |
24 | 26 |
| Insulator Front View |  |
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Rated Current(A) |
10 | 10 | 10 | 10 | 5 | 5 | 5 | 5 |
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Contact diameter(mm) |
φ1.8×10 | φ1.8×12 | φ1.8×14 | φ1.8×16 | φ1×19 | φ1×22 | φ1×24 | φ1×26 |
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Operating voltage(AC.V) |
380 | 380 | 380 | 380 | 250 | 250 | 250 | 250 |
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Pressure resistance(AC.V) 1 min |
1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 | 1500 |
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Contact resistance(mΩ) |
2 | 2 | 2 | 2 | 5 | 5 | 5 | 5 |
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Insulation resistance(MΩ) |
2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 | 2000 |
Industrial automation & control systems
Power distribution, sensor arrays, and signal communication for industrial machinery and robotic systems.
Outdoor power and lighting systems
Reliable IP68 connectivity for solar inverters, LED street lights, and outdoor power modules.
Marine and transportation equipment
Waterproof and vibration-resistant connections for boats, vehicles, and mobile equipment.
Renewable energy & environmental monitoring
Connectors for wind turbines, weather stations, and solar power systems operating in harsh conditions.
Instrumentation & mobile electronics
Suitable for handheld devices, testing instruments, and portable monitoring systems requiring robust circular connectors.
