
Outdoor Junction Box — Waterproof Breaker Enclosure (IP65), WCB Series
IP65 outdoor junction box with ABS base and UV-stable PC clear window; molded gasket & captive screws.
Pre-installed 35 mm DIN rail fits 1P/2P/3P/4P MCB or DC breakers; compact wall/surface mount.
Knockouts for cable glands (e.g., M20/M25); keep rating with matched glands/plugs.
IK10 impact & 650 °C glow-wire (model dependent); −25 °C to +100 °C enclosure range.
Ideal for rooftops, façades, PV strings, small loads, and machinery skids.
Outdoor Junction Box — WCB Series (IP65)
WILLELE’s WCB Series is an outdoor junction box engineered for harsh environments.
A rugged ABS base pairs with a UV-stable polycarbonate clear window for quick status checks, while a molded gasket
and stainless hardware provide reliable IP65 sealing against dust and rain. A factory-fitted
35 mm DIN rail and clean knockouts for cable glands make wall/surface installation fast and tidy on façades,
rooftops, machinery skids, and control points.
- IP65 weather protection with gasketed lid and captive screws; UV-stable clear window.
- Pre-installed 35 mm DIN rail for compact devices (e.g., MCB/DC breakers, switches, terminals).
- ABS/PC construction; IK10 impact class (typical), glow-wire up to 650 °C (model dependent).
- Pre-marked knockouts for cable glands (e.g., M20/M25); maintain rating with matched glands/plugs.
Specifications
| Model Code | WCB-276 × 154 × 145 (reference from series drawing) |
|---|---|
| Outside Dimension (W × H × D) | ≈ 276 × 154 × 145 mm |
| Ingress Protection | IP65 (dust-tight & water-jet resistant when properly sealed) |
| Impact / Glow-wire | IK10 (typical) / Glow-wire 650 °C (typical) |
| Operating Temperature | −25 °C to +100 °C (enclosure only; device limits may differ) |
| Materials | Base: ABS · Window/Lid: UV-stabilized polycarbonate (PC) · Gasket: elastomer |
| Mounting | Wall/surface mount; internal 35 mm DIN rail included; internal bosses for accessories |
| Cable Entry | Knockouts on top/bottom/sides for cable glands (e.g., M20/M25). Use blanking plugs for unused entries. |
| Window / Access | Clear smoked PC inspection window; latch with gasket compression; padlockable hasp optional |
| Compliance | CE, RoHS. Designed for enclosure protection levels per IEC 60529; glow-wire per IEC 60695 (series dependent). |
Notes: exact performance depends on the selected size and configuration. Always confirm the datasheet for the specific model you purchase.
Dimension diagram

Typical Applications
- Outdoor junction points for PV strings, battery auxiliaries, and small control loads.
- Lighting splices and device terminations on façades, rooftops, and machinery skids.
- Retrofits where a compact, weatherproof outdoor junction box is required.
Installation Guidance
- Mount vertically and use all fixing points; keep cable bends inside the enclosure.
- Open only the required knockouts; fit correctly sized glands and tighten to seal.
- Evenly tighten lid screws to compress the gasket; avoid over-torque that can warp plastic.
- Label circuits and verify device clearances before energizing.




