2-Pole DC Protection – Protects positive and negative lines in DC circuits.
Overload Protection – Automatically trips when current exceeds safe limits.
Short-Circuit Protection – Quickly disconnects power during faults.
High Voltage Rating (Up to 500V DC) – Suitable for solar and DC power systems.
6kA Breaking Capacity – Safely interrupts high fault current.
Compact Modular Design – Saves space and simplifies panel installation.
Wide Current Range – Available from 1A to 63A for different system loads.
₨ 1,500 ₨ 1,850
The CNC 2P DC MCB Circuit Breaker YCB8‑63PV is a reliable protection device designed for DC electrical circuits, especially in solar and battery systems. It provides dual-pole protection, disconnecting both positive and negative lines during overload or short-circuit conditions to ensure maximum safety. With a 500V DC voltage rating and up to 63A current capacity, it safely handles heavy DC loads. Its compact DIN rail design allows easy installation in distribution boards and combiner boxes, making it ideal for photovoltaic, industrial, and DC power applications.
| Specification | Details |
| Standards | IEC/EN 60947-2 |
| Number of Poles | 2 Pole |
| Rated Current In (A) | 20A, 32A, 40A, 63A |
| Rated Working Voltage (V DC) | 500V |
| Rated Insulation Voltage Ui (V DC) | 1200 |
| Rated Impulse Voltage Ump (kV) | 4 |
| Ultimate Breaking Capacity Iku (KA, T=4ms) | PV: 6 |
| Operation Breaking Capacity Is (KA) | Is = 100% |
| Tripping Type | Type B, Type C, Type K, Thermomagnetic |
| Curve Type | B, C, K |
| Mechanical Life | 20,000 times |
| Electrical Life | PV: 1500, PV n: 300 |
| Polarity | Heteroploidy |
| 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 Nm |
WiFi Smart Control — Remotely turn ON/OFF the circuit from your smartphone using the Smart Life / Tuya app.
Energy Monitoring (kWh) — Tracks real-time energy usage, including voltage, current, power, and total kWh.
Scheduling & Timer Functions — Set schedules, countdowns, and loop timers for automated circuit control.
Over/Under Voltage Protection — Protects connected equipment by tripping when voltage goes too high or too low.
Over-Current & Over-Power Protection — Trips the breaker if current or power exceeds safe limits.
Real-Time Metering — Displays voltage (V), current (A), and active power (W) in the app.
Voice Assistant Compatible — Works with Amazon Alexa & Google Assistant for hands-free control.
Relay Last Status Memory — Remembers the last ON/OFF state after a power outage.
Durable Design — Built with flame-retardant materials and supports DIN-rail installation.
Wide Operating Range — Works with AC 90–300 V and supports 2.4 GHz Wi-Fi (not 5 GHz
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 – Breaks both positive and negative lines in DC power systems for safer protection.
High DC Voltage Rating – Rated for up to 600 V DC (commonly used in solar PV and battery systems).
High Current Capacity – Available in up to 125 A rating for larger DC loads.
Overload & Short-Circuit Protection – Trips the circuit to prevent damage from excessive current or faults.
Modular DIN Rail Mounting – Easy installation on standard 35 mm DIN rails in DC combiner boxes and panels.
Compact & Durable Design – Built with strong materials for long service life in residential, commercial, and solar DC applications.
C-Type Trip Characteristic – Typical for general DC protection with reliable tripping behavior.
Suitable for Solar PV & Battery Systems – Ideal for protecting DC circuits between solar strings, inverters, and battery banks.
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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