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CNC 4P DC MCB Circuit Breaker YCB8-63PV

CNC 4P DC MCB Breaker Features

  • 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

CNC 4P DC MCB Circuit Breaker YCB8-63PV

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.

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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

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