4-Pole DC Protection – Protects multiple DC lines for higher-voltage systems.
Overload Protection – Trips automatically when current exceeds safe limits.
Short-Circuit Protection – Quickly disconnects faulty DC circuits.
High Voltage Rating (Up to 1000V DC) – Suitable for large solar PV systems.
Current Range up to 63A – Supports different DC loads and system sizes.
High Breaking Capacity (6kA) – Safely interrupts high DC fault currents.
Thermal-Magnetic Trip Mechanism – Provides accurate and reliable protection.
Ideal for Solar PV Systems – Widely used in photovoltaic and DC distribution applications.
₨ 4,200 ₨ 4,500
The CNC 4P DC MCB Circuit Breaker YCB8-63PV is a reliable protection device designed for high-voltage DC systems, especially in solar photovoltaic installations. It provides four-pole protection, disconnecting multiple DC lines during overload or short-circuit conditions to ensure maximum safety. With a high voltage rating up to 1000V DC and current capacity up to 63A, it offers stable and efficient circuit protection. Its compact DIN rail design allows easy installation in solar combiner boxes and DC distribution panels, making it ideal for PV and other DC power applications.
| Specification | Details |
| Standards | IEC/EN 60947-2 |
| Number of Poles | 4 Pole |
| Rated Current In (A) | 20A, 32A, 40A, 63A |
| Rated Working Voltage Ue (V DC) | 1000V |
| Rated Insulation Voltage Ui (V DC) | 1200 |
| Rated Impulse Voltage Uimp (kV) | 4 |
| Ultimate Breaking Capacity Icu (KA, T=4ms) | Pv: 6, PVn: |
| Operation Breaking Capacity Ics (KA) | Ics = 100% Icu |
| Tripping Type | Type B, Type C, Type K, Thermomagnetic |
| Curve Type | B, C, K |
| Mechanical Life | 20,000 times |
| Electrical Life | PV: 1500, PVn: 300 |
| Polarity | Heteropolarity |
| Alarm Contact | Available (□) |
| Auxiliary Contact | Available (□) |
| Shunt Release | Available (□) |
| Inline Methods | Can be up and down into the line |
| Working Temperature (℃) | -35 ~ +70 (with storage -40 ~ +85) |
| Storage Temperature (℃) | -40 ~ +85 |
| Altitude (m) | Use with derating above 2000m |
| Protection Degree | IP20 |
| Installation Category | Category II, Category III |
| Pollution Degree | Level 3 |
| Moisture Resistance | Yes |
| Installation Environment | Places without significant vibration/impact |
| Installation Method | DIN35 standard rail |
| Wiring Capacity | 2.5-25mm² |
| Terminal Torque | 3.5 N·m |
High DC Voltage Rating: Designed for up to 1000 V DC, making it suitable for solar photovoltaic (PV) systems, battery storage and other high‑voltage DC applications.
4‑Pole Configuration: Offers four‑pole protection, providing comprehensive isolation and safety for complex DC circuits.
Overload & Short‑Circuit Protection: Protects DC circuits against overcurrent, short circuits and overloads, helping prevent equipment damage and fire hazards.
Versatile Current Ratings: Available in multiple ratings like 16 A, 20 A, 32 A, 63 A to match different PV system needs.
Flame‑Retardant Durable Build: Constructed with high‑quality flame‑retardant materials for durability and safer operation in harsh environments.
Compact & DIN‑Rail Mountable: Space‑efficient design that easily installs on standard 35 mm DIN rails in PV combiner boxes and DC panels.
Reliable for PV & DC Systems: Ideal for solar PV string protection, energy storage systems, telecom DC circuits, and industrial DC applications.
2-Pole DC Surge Protection – Designed to protect DC power systems (e.g., solar PV strings and DC distribution) from damaging voltage surges and transient spikes.
High Discharge Capacity (20 kA ~ 40 kA) – Can absorb and divert large surge currents caused by lightning or fast transient overvoltage events, helping safeguard connected equipment.
Rated for Up to 1000 V DC – Suitable for high-voltage DC systems typically used in photovoltaic (solar) installations and other DC circuitry.
Fast Response Time – Activates quickly (in microseconds) to reduce exposure to harmful transient events in the DC network.
Low Residual Voltage – Limits the voltage that passes through to sensitive devices during a surge, minimizing potential damage
Thermal Disconnect Safety – Built-in thermal disconnect devices improve reliability by isolating the unit if internal components overheat.
Visual Status Indicators – Color-coded indicators (e.g., green for normal, red for fault) provide quick feedback on protection status.
DIN-Rail Mountable – Easy installation in DC combiner boxes, PV distribution panels, and electrical cabinets using standard DIN-rail mounting.
2-Pole DC Circuit Breaker – Designed for direct current (DC) circuits.
High DC Voltage Rating: Supports up to 1000 V DC, ideal for solar and battery systems.
Overload & Short-Circuit Protection: Automatically trips to protect DC circuits from faults.
Multiple Current Ratings: Available in ratings from 6 A up to 63 A for different load needs.
DIN Rail Mounting: Easy installation in standard DC distribution boxes.
Compact Modular Design: Space-efficient and suitable for solar PV combiner boxes and enclosures.
Reliable DC Arc Protection: Built to handle DC arcs and provide safer breaking performance compared to AC breakers in DC systems.
10-in-1 Smart Protection & Monitoring – Monitors voltage, current, leakage current, total kWh (energy) and protects your circuit.
WiFi Connectivity & App Control – Connects to your home Wi-Fi (2.4 GHz) and lets you remote ON/OFF control, monitor and adjust settings from the Smart Life / TUYA app on iOS/Android.
Adjustable Protection Settings – Set thresholds for over-voltage, under-voltage, over-current, and leakage current via the app or manually.
Voltage & Current Monitoring – Real-time display and tracking of line voltage and current in the app.
Leakage Current Protection – Detects leakage and cuts power to enhance electrical safety.
Energy Consumption Tracking – Shows total kWh usage so you can monitor and manage power consumption.
Scheduled Control & Timer – Create schedules to automate ON/OFF times for your circuits via the app.
Automatic Reconnection with Delay – After a fault trip, it can reconnect automatically with an adjustable delay (1 s to 500 s).
Calibration Feature – Allows calibration for voltage, current, and kW readings for better accuracy.
Voice Assistant Compatible – Works with Google Assistant / Alexa for hands-free control (where supported).
DIN-Rail Mountable – Standard design for installation in electrical panels.
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