Consumer Unit or Fusebox? What’s in Your Home and Should You Upgrade?

When it comes to your home’s electrics, one of the most important components is the consumer unit – although you might know it by its older name: the fusebox.

At Bluerock Electrical, we’ve been installing and replacing consumer units for over 20 years. In that time, we’ve seen every kind of setup imaginable – from brand-new, regulation-compliant units to decades-old fuseboxes still working perfectly well.

But here’s the truth: just because you have an older fusebox doesn’t automatically mean it’s unsafe or illegal. The decision to upgrade should be based on your safety, your needs, and your budget – not myths or scare tactics.

What’s the difference between a fusebox and a consumer unit?

The main difference is in the technology:

• Fusebox – Contains fuses, which are small devices designed to “blow” or break the circuit if too much current flows through. Once a fuse blows, it must be replaced with a new one.

• Consumer Unit – Uses MCBs (Miniature Circuit Breakers) instead of fuses. When an MCB trips, you can simply reset it by flipping a switch – no replacement parts needed.

Modern consumer units also often include RCDs (Residual Current Devices) and SPDs (Surge Protection Devices) for added safety. These protect you from electric shocks and safeguard your home’s electronics from power surges.

Are fuses still safe?

Yes – fuses can still protect your home against fire caused by electrical overloads. Many older homes still have fuseboxes, and they continue to work effectively when properly maintained.

However, MCBs have a few advantages:

• Convenience – No need to replace a blown fuse; just reset the breaker.

• Speed – MCBs trip almost instantly, offering quick protection.

• Clarity – It’s easier to see which circuit has tripped, which helps in identifying issues.

At Bluerock, we always assess your existing system before making a recommendation. If your fusebox is still safe and functional, we’ll tell you so – we don’t believe in replacing something just for the sake of it.

When should you consider upgrading?

While fuses are safe, there are situations where upgrading to a modern consumer unit makes sense:

1. Adding new circuits

   • If you’re renovating, installing a new kitchen, adding outdoor lighting, or fitting an EV charger, you may need extra capacity that your current fusebox can’t provide.

2. Meeting current regulations

   • Modern electrical work must comply with the latest safety standards, which often require Type A RCDs and SPDs – something many older fuseboxes can’t accommodate.

3. Peace of mind

   • Upgrading ensures your electrics are as safe, efficient, and easy to use as possible, reducing the risk of downtime or faults.

4. Frequent tripping or faults

   • If you experience regular blown fuses or tripped circuits, it might indicate wear and tear or underlying electrical issues that a replacement unit could help address.

Why choose Bluerock Electrical?

We know electrical work can feel daunting. That’s why we:

• Work around your schedule – keeping power off for the shortest possible time.

• Offer clear, honest advice – we’ll only recommend a replacement if it’s truly the best option for you.

• Provide full certification – so you have proof that your home meets all current safety requirements.

• Back our work with an insurance-backed warranty – giving you long-term peace of mind.

Your consumer unit is the heart of your home’s electrical system

It controls and protects every circuit in your property – from the lights and sockets to your heating system and kitchen appliances. If you’re unsure whether yours is up to scratch, it’s worth having a professional check it out.

At Bluerock Electrical, we’ll give you a straightforward, no-pressure assessment and help you decide whether to keep your current fusebox or upgrade to a modern consumer unit.

Get in touch today for expert advice and a free, no-obligation inspection.

📞 Call us:  07968 132 056
📧 Email us: info@bluerockelectrical.com