Miniature Circuit Breakers (MCBs) are the unsung heroes of electrical safety—protecting homes, offices, and factories from overloads and short circuits. Among them, the 63 amp single pole MCB is a workhorse, commonly used in high-current circuits like air conditioners, water heaters, or workshop tools. But for buyers, one question dominates: “How much does a 63 amp single pole MCB cost, and why do prices vary so much?”
This guide answers that question, breaking down what affects 63A MCB prices, how they compare to other types (like 63A DP or TPN MCBs), and how to choose the right one for your budget and needs. We’ll also touch on why CNC, a trusted name in circuit protection, is a smart choice for reliable, cost-effective MCBs—without overshadowing the practical insights you need.
What is a 63 Amp Single Pole MCB?
A 63 amp single pole MCB is a compact circuit breaker designed to protect a single electrical phase (live wire) in a circuit. It trips (shuts off) when the current exceeds 63 amps, preventing overheating and fires. Key specs include:
- Current rating: 63A (suitable for high-power devices like 15kW water heaters or 7.5kW industrial motors).
- Poles: 1 (only controls the live wire; neutral remains connected).
- Trip characteristics: B, C, or D curves (C-curve is common for general use, tripping at 5–10x rated current).
Single pole MCBs are ideal for single-phase circuits (most residential and small commercial setups).
Factors Influencing 63 Amp MCB Prices
Prices for 63 amp MCBs range from $10 to $50+—here’s why:
1. Number of Poles (Single, DP, TPN)
- Single pole (1P): Controls 1 live wire. Price: $10–$25 (simplest design, common for residential use).
- Double pole (DP): Controls 1 live + 1 neutral wire. Price: $15–$35 (used where neutral needs switching, e.g., sensitive electronics).
- TPN (Triple Pole + Neutral): Controls 3 live wires + 1 neutral. Price: $25–$50+ (for three-phase systems, like factories or large HVAC units).
Example: A 63A single pole MCB for a home AC costs ~$15, while a 63A TPN MCB for a factory compressor might cost $40.
2. Brand and Quality
Well-known brands (e.g., Schneider, Siemens) charge a 20–40% premium for proven reliability. Budget brands may be cheaper but often use lower-grade materials (e.g., thinner copper contacts) that wear faster. For example:
- A Schneider 63A single pole MCB: $20.
- A generic 63A single pole MCB: $12 (but may trip inconsistently or fail under load).
3. Certification and Standards
MCBs meeting global standards (e.g., IEC 60898, CE, ISI) cost 10–20% more but ensure safety and compliance. A 63A single pole MCB with IEC certification ($18) is safer for a hospital than a non-certified $12 model.
4. Material and Design
Premium MCBs use:
- High-purity copper contacts: Better conductivity, less heat (e.g., CNC’s 63A MCBs).
- Flame-retardant thermoplastic: Withstands 850°C+ (vs. 750°C for budget models).
- Arc extinction chambers: Quicker arc suppression, longer lifespan.
These features add $5–$10 to the price but reduce replacement costs long-term.
63 Amp Single Pole MCB vs. Other Types: When to Choose What
The right MCB type depends on your circuit’s needs:
| Type | Use Case | Typical Price Range |
|---|---|---|
| 63A Single Pole | Single-phase circuits (homes, shops) | $10–$25 |
| 63A DP (Double Pole) | Sensitive electronics, neutral switching | $15–$35 |
| 63A TPN (Triple Pole + Neutral) | Three-phase systems (factories, large HVAC) | $25–$50+ |
Example: A home with a 63A AC circuit needs a single pole MCB ($15). A small factory with a three-phase 63A motor needs a TPN MCB ($35).
How to Choose the Right 63 Amp MCB for Your Budget
To avoid overspending or underprotecting, follow these steps:
1. Match the Circuit Type
- Single-phase (residential): 63A single pole MCB ($10–$25).
- Single-phase with neutral switching: 63A DP MCB ($15–$35).
- Three-phase (industrial): 63A TPN MCB ($25–$50+).
2. Check the Trip Curve
- Type B: Trips at 3–5x current (for resistive loads, e.g., heaters).
- Type C (most common): Trips at 5–10x current (for inductive loads, e.g., motors).
- Type D: Trips at 10–20x current (for heavy industrial loads, e.g., transformers).
A 63A Type C single pole MCB ($18) is ideal for a home AC unit.
3. Prioritize Safety Over Cost
A $20 certified MCB (IEC 60898) may cost $5 more than a generic $15 model, but it’s worth it:
- Reduces fire risk (flame-retardant casing).
- Trips accurately (no false trips or failures).
- Lasts longer (high-purity copper contacts).
Why CNC 63 Amp MCBs Offer Value
CNC designs MCBs with safety and affordability in mind:
- Certified reliability: All CNC 63A MCBs meet IEC 60898 and CE standards, ensuring they trip accurately under load.
- Durable materials: High-purity copper contacts and 850°C flame-retardant casings extend lifespan by 20% vs. budget models.
- Competitive pricing: A CNC 63A single pole MCB costs $16–$22—priced between budget and premium brands, but with premium performance.
We focus on what matters: keeping your circuits safe without breaking the bank.
Conclusion
The price of a 63 amp single pole MCB ranges from $10 to $25, depending on brand, certification, and design. The right choice depends on your circuit type (single-phase vs. three-phase), load type (resistive vs. inductive), and safety needs.
Whether you’re protecting a home AC unit or an industrial motor, investing in a certified, durable MCB like CNC’s 63A single pole model ensures long-term safety and cost savings. After all, a reliable MCB isn’t just a component—it’s peace of mind.
Need help selecting the perfect 63 amp MCB for your circuit? CNC’s technical team offers free consultations—reach out to find your ideal breaker.
Post time: May-30-2025
