Where is the outlet hole of the waterproof distribution box

The outlet hole of a waterproof distribution box is typically located on the top and bottom of the enclosure, often as pre-molded knockout holes for flexible cable routing.

Location and Purpose

Waterproof distribution boxes are designed with knockout holes on both the top and bottom surfaces to allow cables to enter and exit while maintaining the box's waterproof integrity . These holes can be removed or customized depending on the wiring requirements, and they are often paired with cable glands or sealing grommets to prevent water ingress . The placement ensures that water does not pool around the entry points, preserving the IP65–IP68 protection rating .

Installation Considerations

• Top Knockouts: Useful for cables coming from overhead conduits or for vertical installations.
• Bottom Knockouts: Commonly used for cables entering from below, such as floor-mounted or underground wiring.
• Sealing: After inserting cables, use waterproof glands or gaskets to maintain the enclosure's seal and prevent moisture from entering .
• Customization: Some boxes allow smooth surfaces instead of knockouts if a specific outlet configuration is required .

Additional Tips

• Ensure the box is mounted at a height that avoids direct water exposure, typically above ground level.
• Use the correct size of cable gland to match the cable diameter for optimal sealing.
• Verify that the outlet hole does not compromise the structural integrity of the box or its IP rating. By following these guidelines, the outlet holes on a waterproof distribution box can be used effectively for safe and reliable cable routing in outdoor or industrial environments .