When it comes to installing a CCTV system, most of the attention goes to the cameras and recorders. But here’s the truth: without the right CCTV cable, power supply, and mounting box, even the best security camera can let you down.
Whether you're a DIY-savvy homeowner or a professional electrician, understanding the essential hardware behind a solid CCTV setup is key. In this guide, we’ll break down everything you need to know about powering your CCTV system, protecting your wiring, and securely mounting your cameras for optimal performance.
Let’s get you set up for smarter, safer surveillance.

🔌 Choosing the Right CCTV Power Cable
Your CCTV cameras won’t do much without a stable and safe power connection. Depending on your system type, you’ll need to decide between:
1. Coax + Power (Analogue)
- Used with traditional DVR systems
- Requires two separate cables or one combined Siamese cable
- Great for systems like Hikvision Turbo HD
2. Cat5e/Cat6 Ethernet Cable (IP Systems)
- Carries both data and power using PoE (Power over Ethernet)
- Cleaner, single cable install
- Ideal for modern NVR setups with IP cameras
Quick Cable Buying Tips:
- Choose solid copper for longer distances (over 30m)
- Use pre-terminated leads for quick installs
- Don’t forget weatherproofing for outdoor runs
✅ Check out WME’s full range of CCTV cables and accessories for high-quality, durable options.
🔧 Why Junction Boxes Matter for CCTV
A junction box isn’t just a neat way to hide wires – it’s a crucial protection layer for your security system. Here’s why:
- Keeps connectors dry and safe from rain or insects
- Allows for easier maintenance or future upgrades
- Helps ensure a clean, professional look on exterior walls
At WME, you’ll find boxes that match most Hikvision cameras in black or white – just search by the model.
WME Product Pick:
-
Hikvision Aluminium Alloy Junction Box (Black) – ideal for external CCTV terminations
Explore our Camera Mounting Brackets section for weatherproof boxes, grommets and glands.
📸 Best Practices for Mounting Your CCTV Camera
Now that your power and protection are sorted, let’s talk about the actual camera mounting process.
Where Should You Mount Your CCTV Cameras?
- Main entry points (front/back doors)
- Driveways and garages
- Garden fences or side paths
- Business loading bays or exits
Mounting Tips:
- Install cameras 2.5–3m above ground for best visibility and tamper-resistance
- Avoid direct sunlight or IR reflection from walls
- Use the correct mounting box for turret, bullet or dome cameras
- Be sure to read through our guide on UK CCTV Rules & Regulations prior to mounting your camera.
- Ensure you follow Outdoor Wiring Safety Guidelines.
Product Spotlight:
- Hikvision DS-1280ZJ-DM21 Junction Box for Turret Cameras – perfect for tidy installs of Hikvision dome models.

🤔 FAQs: CCTV Cables, Power & Mounting
Q: What’s better: PoE or separate power?
A: PoE is generally cleaner and easier to install, especially for new builds or rewires.
Q: Can I power my cameras from a plug socket?
A: Yes, with 12V DC adapters – but use a regulated power supply to avoid drops.
Q: How do I hide CCTV wires?
A: Use trunking, conduit or junction boxes. Our Wiring Accessories range has everything you need.
Q: Do all cameras need a mounting box?
A: Not always – but they’re highly recommended for outdoor installs and IP-rated protection.
From picking the right CCTV cable to installing the perfect mounting box, every part of your CCTV system plays a role in keeping your home or business protected. Don’t skimp on the small stuff – power reliability and proper cable protection can make or break your setup.
Ready to upgrade your install game?
🛍️ Browse CCTV accessories, cables and junction boxes now at WME – trusted by electricians, loved by homeowners.
Need expert advice? Just reach out. We’re here to help you power up with confidence.