The M25 Charging Pile Board-End Waterproof Plug is a circular, mid-large power interface engineered specifically for board-side termination inside AC/DC charging piles, charging cabinets, and battery swap stations. Built on the M25×1.5 coupling body, it carries the main DC charge bus or AC auxiliary feed from the pile enclosure wall directly onto the control board or power module, while maintaining IP67 sealed protection against rain spray, condensation, and washdown.
Unlike generic M25 cable joiners, this board-end version is supplied as a panel-mount receptacle with pin-header/solder-tab/screw-terminal tail that bolts to the charging pile sheet-metal or DIN bracket, plus a matching field-wireable or molded male plug for cable-side connection. Common pin configurations include 2-pin (DC+/-), 2+3, 2+5, and 2+1+5 for e-bike, scooter, and L2 charger applications.
| Parameter | Specification |
|---|---|
| Coupling Size | M25 × 1.5 (25 mm nut OD) |
| Configuration | Panel receptacle (board-end) + plug |
| Pins | 2 / 2+3 / 2+5 / 2+1+5 |
| Rated Current | 30 A (hybrid) - 50 A (2-pin DC) |
| Rated Voltage | 500 V DC / 600 V AC max |
| Withstand Voltage | 1500 V AC / 1 min |
| Contact Resistance | ≤ 10 mΩ |
| Insulation Resistance | ≥ 100 MΩ @ 500 V DC |
| Protection | IP67 std / IP68 opt (mated) |
| Cable OD | Φ6-16 mm (gland dependent) |
| Wire Gauge | 6-10 AWG (up to 6 mm²) power; 16-22 AWG signal |
| Operating Temperature | -40 °C … +105 °C |
| Shell / Flame Rating | PA66+GF, UL94-V0 |
| Mating Cycles | ≥ 3000 (push-lock premium) |
| Certifications | CE, RoHS, UL/TUV/CCC options |
vs generic M25 cable coupler: Adds panel O-ring + PCB tail for pile-door sealed board feed, not just inline splice
vs Anderson SB50 inside the pile: Fully enclosed, keyed, IP67 at panel, no exposed copper on door penetration
vs terminal block + PG gland: One part provides panel seal + board landing + cable strain relief; 50% fewer BOM lines
vs M20 board-end: +10-20 A headroom, fits 10 AWG DC bus without overheating