Field wiring and four-pole power don't always play nice together. The LP24 4-Pin Screw Lock Circular Connector handles both — 25A per contact at 400V, screw terminals you tighten with a screwdriver, and IP68 sealing that handles water. Four poles for three phases plus ground, dual DC circuits, or any mix you need. One job: keep the connection tight when the equipment shakes and the environment is wet.

Four-pin setups are where the interesting work happens. Three-phase plus PE. Dual DC circuits. Two power lines and two control lines. The LP24 4-Pin Screw Lock Circular Connector gives you that flexibility without needing two separate connectors. And the screw terminals are a deliberate choice — not every job site has a soldering iron. Strip the wire, insert it, tighten. Done.
The clamp holds 4mm² (12 AWG) cable firmly, and the cable gland keeps pull forces away from the contact points. For four-pole loads on the mid-to-heavy end — small motors, control panels, pump stations — this is the connector that gets wired up on site and then left alone for years.
Four-pole equipment lives outdoors or in washdown areas — pump stations, outdoor HVAC units, marine power distribution. And these are exactly the places where moisture finds a way in. The LP24 4-Pin Screw Lock Circular Connector handles IP68 at 2 meters for 24 hours. Cable entry takes 4mm² (12 AWG) wire with a 14mm outer diameter.
The housing is metal on the coupling thread — that's the part that takes the beating when someone cranks it too hard in the field — and plastic everywhere else to keep it light.

|
Pin Count |
4-Pin |
Protection Rating |
IP68 (when mated) |
|
Rated Current |
25A |
Housing Material |
Zinc Alloy + Engineering Plastic |
|
Rated Voltage |
400V |
Contact Material |
Gold-plated Copper Alloy |
|
Withstand Voltage |
2000V AC |
Cable Range |
4mm² (12 AWG) |
|
Contact Resistance |
< 5.0 mΩ |
Cable O.D. |
Φ14mm |
|
Insulation Resistance |
≥ 500 MΩ |
Assembly Type |
Screw Lock |
|
Temperature Range |
-40℃ to +85℃ |
Four-pole power runs in wet environments. Small three-phase motors with PE. Dual-circuit DC equipment. Marine power distribution. Outdoor HVAC compressors. Agricultural irrigation pumps. Construction site distribution boxes. Anywhere you need four lines running into equipment that gets wet — and that's where the LP24 4-Pin Screw Lock Circular Connector ends up.
Every batch gets a dielectric test and a waterproof check. Screw terminals get torque-checked, not just eyeballed. It costs us time. It saves you callbacks.
The LP24 series carries TUV, CE, and RoHS. We run ISO9001:2015, so material sourcing is consistent and production records are traceable. And the quality system actually gets audited — not just claimed.

Q: What's the 4th pin for?
A: Whatever you need it for. Three-phase plus PE is common. So is dual DC circuits. Or two power lines and two control lines.
Q: Why screw terminals instead of solder?
A: Field wiring. Not every job site has a soldering iron. Screw terminals let you terminate 4mm² cable with a screwdriver, and the clamp holds tight under vibration.
Q: What cable size does it take?
A: 4mm² (12 AWG) with a 14mm outer diameter. Power-class cable, sized for the current.
Q: Can it stay submerged?
A: Yes. IP68 covers continuous immersion. We test at 2 meters for 24 hours.

For specs, custom pin counts, or samples of the LP24 4-Pin Screw Lock Circular Connector, email nick@cableinco.com. Tell us your current and cable size — we'll confirm the build.