CB-63DC Moulded Case Circuit Breaker

CB-63DC-MCCB-2P

CB-63DC-MCCB-2P Front

CB-63DC-MCCB-1P

CB-63DC-MCCB-2P Front

CB-63DC-MCCB-2P

CB-63DC-MCCB-2P Front

CB-63DC-MCCB-1P

CB-63DC-MCCB-2P Front

CB-63DC Moulded Case Circuit Breaker

The CHINT CB-63DC Moulded Case Circuit Breaker (MCCB) provides reliable overload and short-circuit protection for DC power distribution systems up to 500 V and 63 A. Engineered with thermomagnetic trip technology, it ensures stable performance and fast fault disconnection. Compact and durable, the CB-63DC offers 6 kA breaking capacity, 20,000-cycle mechanical life, and easy DIN-rail installation. Fully compliant with IEC/EN 60947-2 and certified by CE, TUV, and REACH, it’s ideal for DC systems in solar, telecom, and industrial control applications.

Product Information

Standard: IEC/EN 60947-2
Certifications: CB, CE, TÜV, REACH
Rated Current (In): 1 A – 63 A
Rated Operating Voltage (Ue): DC 250 V (1P) / DC 500 V (2P)
Rated Insulation Voltage (Ui): 500 V
Rated Impulse Withstand Voltage (Uimp): 6 kV
Breaking Capacity (Icu): 6 kA
Rated Service Short-Circuit Capacity (Ics): 6 kA
Trip Unit Type: Thermomagnetic (Curve C, Ii = 8.5 × In ± 20%)
Poles: 1P / 2P
Mechanical Life: 20,000 operations
Electrical Life: 6,000 operations
Power Consumption (per pole):
- ≤10 A: 3 W
- 10–16 A: 3.5 W
- 16–25 A: 4.5 W
- 25–32 A: 6 W
- 32–40 A: 7.5 W
- 40–50 A: 9 W
- 50–63 A: 13 W
Operating Temperature: −35 °C to +70 °C
Altitude: ≤ 2000 m
Terminal Capacity: 1–16 mm²
Tightening Torque: 2.0 N·m
Wire Insertion Depth: 12 mm
Mounting: DIN rail (TH35-7.5)
Protection Degree: IP20 (direct install) / IP40 (in distribution box)
Accessories Available: AX-X1, AL-X1, SHT-X1, OVT-X1, UVT-X1, OUVT-X1
Application Areas: DC circuits, photovoltaic arrays, battery systems, and control panels

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CB-63DC-MCCB-Catalog.pdf

219.17KB

2025-12-16

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2411-CB-63DC-MCCB-Manual.pdf

3.12MB

2025-08-12

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2412-CB-63DC-MCB-REACH Declaration.pdf

357.42KB

2025-08-12

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2010-CB-63DC-MCB-CB Certificate.pdf

618.88KB

2025-08-12

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2009-CB-63DC-MCB-CE Certificate.pdf

63.95KB

2025-08-12

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2009-CB-63DC-MCB-TUV Certificate.pdf

100.32KB

2025-08-12

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CB-63DC-MCCB-Drawing-1P-2D.dwg

202.54KB

2025-08-12

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CB-63DC-MCCB-Drawing-1P-3D.stp

5.7MB

2025-08-12

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CB-63DC-MCCB-Drawing-2P-2D.dwg

202.54KB

2025-08-12

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CB-63DC-MCCB-Drawing-2P-3D.stp

12.32MB

2025-08-12

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FAQs

What is the main function of the CB-63DC MCCB?

It provides overload, short-circuit, and isolation protection for DC power systems up to 500 V, ensuring safety and operational reliability.

What trip characteristic does it use?

The CB-63DC uses a thermomagnetic trip unit with Curve C (8.5 × In ± 20%), offering fast, precise response for general DC circuit protection.

What are the available configurations?

It comes in 1P and 2P configurations with rated voltages of 250 V DC and 500 V DC respectively.

How durable is it?

The CB-63DC delivers a mechanical life of 20,000 operations and electrical life of 6,000 operations, ensuring long-term reliability.

In which environments can it operate?

It operates in temperatures from −35 °C to +70 °C and altitudes up to 2000 m, with an IP20/IP40 protection rating for safe installation.