Single-Pole DC Protection – Designed to protect single-pole DC circuits.
Overload Protection – Trips automatically when current exceeds safe limits.
Short-Circuit Protection – Quickly disconnects power during faults.
High Voltage Rating (500V DC) – Suitable for high-voltage DC systems like solar setups.
High Current Capacity (Up to 125A) – Supports heavy DC loads and battery systems.
6kA Breaking Capacity – Safely interrupts high fault currents.
DIN Rail Mounting – Easy installation in electrical panels.
₨ 1,250 ₨ 1,500
The CNC DC 1P MCB 500V 125A YCB1 is a high-performance circuit breaker designed for DC power systems such as solar and battery installations. It provides reliable overload and short-circuit protection, automatically disconnecting the circuit to prevent damage to equipment and wiring. With a 500V DC voltage rating and 125A current capacity, it is suitable for heavy-duty DC applications. Its compact DIN rail design allows easy installation in electrical panels, making it ideal for solar photovoltaic and DC distribution systems.
| Specification | Details |
| Standard | IEC/EN 60947-2 |
| Rated Current In (A) | 125 |
| Number of Poles | 1Pole |
| Rated Working Voltage Ue (V DC) | 500 |
| Rated Impulse Voltage Uimp (kV) | 6 |
| Operation Breaking Capacity Ics (kA) | Pv: 6, PVn: 10 |
| Ultimate Breaking Capacity Icu (kA) | li = 10ln (default) |
| Tripping Type | Thermomagnetic |
| Mechanical Life (times) | 20,000 |
| Electrical Life (times) | PV: 1000, PVn: 300 |
| Polarity | Heteropolarity |
| Inline Methods | Can be up and down the line |
| Storage Temperature (°C) | -35 ~ +70 |
| Working Temperature (°C) | -40 ~ +85 |
| Altitude (m) | Use with derating above 2000m |
| Protection Degree | IP20 |
| Pollution Degree | Level 3 |
| Installation Environment | Places without significant vibration/impact |
| Installation Category | Category III |
| Installation Method | DIN35 standard rail |
| Wiring Capacity | 2.5–50 mm² |
| Terminal Torque | 3.5 NM |
2-Pole AC Surge Protection Device – Protects single-phase electrical systems from voltage surges and transient over-voltages.
High Surge Current Capacity (20 kA ~ 40 kA) – Can absorb and divert high-energy spikes from lightning strikes or switching surges to safeguard devices.
Rated Voltage ~275 V AC (up to 385 V versions) – Designed for typical household and light commercial AC mains.
Low Let-Through Voltage (< 1.5 kV) – Limits the voltage that reaches connected equipment during a surge, reducing damage risk.
Compact DIN-Rail Mountable – Easy installation in electrical panels or distribution boards.
Flame-Retardant Durable Build – Made with robust materials for long-term reliability.
Auto-Reset After Surge – Resets itself after handling a surge event for continuous protection.
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.
Smart WiFi Control – Remotely turn the breaker ON/OFF from anywhere using the Smart Life / Tuya app on your phone.
Energy Monitoring (kWh) – Measures and reports real-time energy usage, including voltage, current, and power, so you can track consumption and manage bills.
Scheduling & Timer Functions – Create timers, schedules, and loop timers for automatic circuit control.
Built-In Protection – Offers over-voltage, under-voltage, and over-current protection settings to safeguard connected devices.
Wide Operating Range – Works with AC 90–300 V (50/60 Hz) supply and supports 63 A load capacity (adjustable).
Last State Memory – Remembers the previous ON/OFF status after a power outage.
Durable & Reliable – Designed for over 100,000 mechanical operations and –25 °C to +70 °C operating temperature.
Real-Time Voltage & Current Metering – Displays voltage, current, and power values in the app.
Voice Assistant Ready – Works with Google Assistant & Alexa via the Tuya/Smart Life platform (depending on app setup).
2P + 2P DC Manual Transfer Switch (MTS) – Lets you manually switch between two DC power sources in a photovoltaic (PV) setup, such as a solar array and a backup battery bank.
Dual Power Operation – Designed for DC dual power systems to ensure continuity of power without automatic switching.
Rated for High DC Voltage: Supports up to 1000 V DC, meeting common PV system requirements.
Integrated Circuit Breaker Protection: Combines manual transfer switching with overload and short‑circuit protection in one unit.
2P + 2P Pole Structure: Provides full protection and switching for two separate DC sources (each 2‑pole).
Rated Current Options: Available (commonly) at 63 A and potentially other ratings depending on model.
DIN‑Rail Mountable: Compact design fits standard 35 mm DIN rails in PV combiner boxes and DC distribution panels.
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