If you’re planning to upgrade your distribution panel or looking for the best protection for your three-phase circuits, the Eaton PLSI‑C10/3‑GI MCB might already be on your radar. In this post, we’ll answer some of the most frequently asked questions (FAQs) about this popular 10A 3-pole C-curve MCB to help you make an informed decision.
❓ What is the Eaton PLSI‑C10/3‑GI MCB?
The Eaton PLSI‑C10/3‑GI is a Miniature Circuit Breaker (MCB) rated at 10A, with a C-curve tripping characteristic. It features a three-pole (TP) configuration, making it suitable for three-phase electrical systems commonly found in Indian homes, small businesses, and light-industrial setups.
⚙️ Key Technical Specifications
- Rated Current (In): 10A
- Trip Curve: C-Curve (5–10× In)
- Rated Voltage: 240/415 V AC
- Breaking Capacity: 10kA
- Poles: 3 (Triple Pole)
- Standards: IS/IEC 60898-1, ISI & CE Certified
- Mounting: DIN-Rail
🧠 Frequently Asked Questions
1. ✅ What is the use of a C-Curve MCB?
C-curve MCBs are designed to trip when the current reaches 5 to 10 times the rated current (In). They are ideal for inductive loads like motors, compressors, HVAC units, and pumps, which have higher inrush currents during startup.
2. ✅ Can I use this MCB in residential panels?
Absolutely! The Eaton PLSI‑C10/3‑GI is ideal for residential three-phase distribution boards, especially where individual neutral isolation and energy-limiting protection are required.
3. ✅ Is this MCB ISI certified?
Yes, it is ISI and CE certified and fully complies with IS/IEC 60898-1 standards, making it reliable and approved for use across India.
4. ✅ What makes it suitable for Indian conditions?
The MCB is engineered with fire-retardant housing, true isolation, and operates efficiently in a wide temperature range (–5 °C to +50 °C) with high humidity resistance (up to 95% RH). It’s truly a “Made for India” product.
5. ✅ Can this MCB be used in HVAC systems?
Yes. The C-curve tripping makes it perfect for inductive HVAC loads, ensuring protection during compressor startup without unnecessary tripping.
6. ✅ What are the wiring terminal specs?
It supports:
- Up to 25 mm² solid conductors
- Up to 16 mm² flexible wires
- Uses M5 combi-screws tightened to 2 Nm
7. ✅ Is there a visual trip/contact indicator?
Yes! A true contact position indicator helps clearly distinguish ON (red) and OFF (green) states, ensuring maintenance safety and easy troubleshooting.
8. ✅ Can I use this in OEM panels or retrofits?
Definitely. With its 17.5 mm per pole modular width, the unit fits snugly into compact panels. It’s a favorite among panel builders for OEM and retrofit jobs.
9. ✅ How long will this MCB last?
It offers:
- Mechanical Life: 10,000 operations
- Electrical Life: 4,000 operations
That’s long-term reliability for years to come.
10. ✅ Where can I buy the Eaton PLSI‑C10/3‑GI in India?
You can get 100% genuine Eaton MCBs from Shansen Enterprises – an Authorized Channel Partner with a strong track record in quality electrical supply.
📲 Click here to get a quote on WhatsApp today!
💬 Final Thoughts
Whether you’re upgrading a residential DB, setting up an HVAC control panel, or wiring a workshop, the Eaton PLSI‑C10/3‑GI offers the perfect mix of safety, performance, and compliance. With its solid 10kA breaking capacity and “Made for India” reliability, this MCB is a top pick for professionals and homeowners alike.
