RCBO Circuit Breaker Price 2025

If you’re upgrading your home’s electrical panel or wiring a new project, you’ve likely considered RCBO circuit breakers—the dual-protection devices that guard against overloads, short circuits, and dangerous ground faults. But how much do they cost? And why do prices vary so widely between brands and models?

In this 2025 guide, we’ll break down RCBO pricing trends, the factors that drive costs, and how to find the best deal—including budget-friendly options from brands like CNC, known for reliable yet cost-effective electrical solutions.

What Is an RCBO, and Why Price Matters

An RCBO (Residual Current Circuit Breaker with Overcurrent Protection) combines two critical functions:

• MCB (Miniature Circuit Breaker): Stops overloads or short circuits.
• RCD (Residual Current Device): Detects leakage currents (e.g., from faulty appliances or water contact).

This all-in-one design makes RCBOs safer than standalone MCBs or RCDs—especially in high-risk areas like kitchens, bathrooms, or outdoor outlets. But their price depends on specs, brand, and application, so understanding these variables is key to avoiding overspending.

2025 RCBO Price Ranges: What to Expect

RCBO prices vary based on current rating (amps), number of poles (1P/2P), and brand. Below are typical 2025 costs (per unit) across budget, mid-range, and premium options:

Example: A 1P 16A RCBO for a bedroom light circuit might cost $15 (budget) vs. $45 (premium). A 2P 63A RCBO for a main panel? $50 (budget) vs. $110 (premium).

5 Key Factors That Impact RCBO Prices

Why the gap between budget and premium models? Here’s what drives costs:

1. Current Rating (Amps)

Higher-amp RCBOs (e.g., 63A) handle more power, requiring thicker copper components and sturdier casings. This makes them pricier than lower-amp models (e.g., 16A).

2. Number of Poles (1P vs. 2P)

• 1P RCBOs: Protect a single live wire (common for lighting or small appliances).
• 2P RCBOs: Cut both live and neutral wires (safer for kitchens, water heaters, or outdoor circuits).

2P models cost more due to extra components and enhanced safety.

3. Brand Reputation

Premium brands (Schneider, Siemens) invest in R&D, rigorous testing (CE, UL, IEC), and long warranties—so you pay a premium. Budget brands like CNC offer similar certifications but at 10–20% lower prices, with bulk orders saving 20–30%.

4. Certification & Safety Ratings

RCBOs with global certifications (e.g., IEC 61009) cost more than uncertified alternatives. Always prioritize certified models—they’re tested to prevent fires and electrocution.

5. Special Features

Some RCBOs include:

• Tripping curves (Type B/C/D): For sensitive vs. high-inrush loads.
• LED fault indicators: To pinpoint issues.
• Weatherproof enclosures: For outdoor use.

These extras add $5–$20 to the price.

How to Choose an RCBO Without Overspending

Follow these tips to balance cost and performance:

1. Match Amps to Your Load

• Light circuits (lights, phones): 6A–16A 1P RCBOs.
• Medium loads (fridges, TVs): 20A–32A 1P/2P RCBOs.
• Heavy loads (water heaters, ACs): 40A–63A 2P RCBOs.

Overbuying (e.g., a 63A RCBO for a 10A light circuit) wastes money.

2. Prioritize Certification

Avoid unbranded RCBOs—even if they’re cheap. Look for CE, UL, or IEC marks. Brands like CNC offer certified options at 10–20% lower than premium names, making them ideal for budget projects.

3. Decide Between 1P and 2P

For low-risk areas (bedrooms, closets), 1P RCBOs work. For kitchens, bathrooms, or outdoor outlets, 2P RCBOs are worth the extra cost—they cut both live and neutral wires, reducing electrocution risk.

4. Check Warranty & Support

Premium brands offer 5–10-year warranties, while budget brands (like CNC) typically include 2–3-year coverage. For most DIYers, a 2-year warranty is sufficient.

RCBO vs. MCB + RCD: Which Is More Cost-Effective?

Some electricians pair an MCB with an RCD instead of using an RCBO. Which saves money?

• RCBO: $20–$120 (single unit, dual protection).
• MCB + RCD: $10–$30 (MCB) + $15–$50 (RCD) = $25–$80 (total).

While MCB+RCD is slightly cheaper upfront, RCBOs save on installation time (one device vs. two) and panel space—making them a better long-term value for most homes.

Final Take: Get the Right RCBO at the Right Price

RCBO prices range from $12 (budget 1P 16A) to $120 (premium 2P 63A)—but the “best” price depends on your needs. For most homeowners, a 1P 20A–32A RCBO from a budget brand like CNC (certified, 10–20% cheaper than premium options) hits the sweet spot. For critical circuits (kitchens, water heaters), invest in a 2P 40A–63A RCBO from a trusted mid-range brand like Eaton.