Types of Consumer Units Explained

Types of Consumer Units Explained: Which One Is Best for Basingstoke Homes?


Your consumer unit (often called a fuse board) is one of the most important parts of your electrical system. It controls every circuit in your home and protects you from electrical faults, shocks and potential fire risks. With modern regulations and safety standards changing over time, many homes in Basingstoke, Chineham, Hatch Warren, Kempshott and Old Basing now need upgraded or fully replaced consumer units.

If you’re unsure which type of consumer unit is right for your home, this guide explains the most common options — and which ones offer the best safety and performance for modern living.




1. Main Switch Consumer Unit

This is the most basic type of consumer unit still in use today.

How it works:

All circuits are controlled by a single main switch. If a fault occurs, the entire electrical supply may need to be switched off.

Pros:

  • Affordable
  • Simple design

Cons:

  • Limited protection
  • Not ideal for modern homes
  • Not commonly recommended for full upgrades

Best for:
Very small properties or outbuildings — not typically suitable for full Basingstoke homes.




2. Dual RCD Consumer Unit

This is one of the most popular options installed across UK homes.

How it works:

Circuits are split between two RCDs (Residual Current Devices).
If a fault occurs on one side, only half the circuits lose power.

Pros:

  • Good level of protection
  • Cost-effective
  • Meets modern regulations

Cons:

  • If one RCD trips, multiple circuits may go down
  • Not ideal for properties with high electrical demand

Best for:
Most standard homes in Basingstoke looking for an affordable upgrade.




3. High Integrity Consumer Unit

A more advanced version offering greater flexibility and improved safety.

How it works:

Combines RCD-protected circuits with RCBOs (individual fault protection).
This helps isolate faults to one specific circuit.

Pros:

  • Excellent protection
  • Reduces nuisance tripping
  • Ideal for homes with many appliances
  • Compatible with EV chargers, home offices and smart systems

Cons:

  • Higher cost than dual RCD units

Best for:
Modern Basingstoke homes with higher electrical usage or additional upgrades planned.




4. Full RCBO Consumer Unit

This is considered the gold standard for safety and performance.

How it works:

Every circuit has its own RCBO, meaning faults only affect the specific circuit with the issue.

Pros:

  • Maximum safety
  • Zero nuisance tripping
  • Supports complex modern electrical setups
  • Ideal for future-proofing

Cons:

  • More expensive than other unit types

Best for:
Large or modernised properties, smart homes, EV charger users, and anyone wanting the highest level of protection.




5. Consumer Units with Surge Protection Devices (SPDs)

Newer regulations encourage SPDs to protect against voltage spikes caused by:

  • Lightning strikes
  • Local network disturbances
  • Faulty appliances

SPDs are often installed alongside RCBO or dual RCD units.

Benefits:

  • Protects expensive electronics
  • Reduces risk of system damage
  • Ideal for home offices and tech-heavy homes

Best for:
Any modern Basingstoke home, especially where computers, servers or sensitive equipment are used.




Which Consumer Unit Should You Choose?

It depends on your home’s size, age and electrical demand:

  • Small homes: Dual RCD
  • Standard modern homes: High Integrity unit
  • Properties with EV chargers, offices or smart tech: Full RCBO with SPD
  • Older homes needing safety upgrades: Full RCBO for maximum protection

A qualified Basingstoke electrician can assess your home and recommend the safest, most cost-effective option.

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