DC MCB Circuit Breaker 2p 10A– 63A 600V/1000V for PV Systems

• Breaking Capacity: High Voltage Circuit Breakers
• Operation: Manual Type
• Speed: Normal Type Circuit Breaker
• Model NO.: MDB1Z-63
• Arc-extinguishing Medium: Oil-immersed Type
• Installation: Fixed
• Structure: ACB
• Poles Number: 2
• Type: Circuit Breaker
• Function: Circuit-Breaker Failure Protection, Overcurrent Protection
• Certification: ISO9001-2000, CE, CB, CCC
• Frame Degree Rated Current: 63A
• Pole: 1p, 2p, 3p, 4p
• Rated Operating Voltage (VDC): 12V, 24V, 48V, 300V, 600V, 900V, 1200V
• Rated Current in (a): 10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
• Rated Insulation Voltage Ui (VDC): 1250VDC
• Transport Package: Carton
• Trademark: MOREDAY
• Origin: China
• HS Code: 8536200000
• Production Capacity: 500000PCS/Month

Product Description

Product Description

The MDB1Z-63 New Black Series L7 DC MCB offers reliable overcurrent and short-circuit protection in a compact, stylish design. Ideal for residential and commercial DC applications, this breaker combines performance with aesthetics.

Its space-saving size makes it perfect for tight installations, while its durable construction ensures long-term stability and safety. Whether you're upgrading a solar PV system or building a new DC distribution setup, the MDB1Z-63 delivers dependable protection with a modern look.

Compact design for easy installation

Rated for DC systems up to 63A

Fast response to overcurrent and short-circuit faults

Sleek black finish enhances panel appearance

Suitable for solar PV, EV, and industrial DC systems

MDB1Z Series Circuit Breaker		MDB1Z-63PV
Frame Degree Rated Current		63A
Pole		1P, 2P, 3P, 4P
Rated Operating Voltage (VDC)		12V, 24V, 48V, 300V, 600V, 900V, 1200V
Rated Current In (A)		10A, 16A, 20A, 25A, 32A, 40A, 50A, 63A
Rated Insulation Voltage Ui (VDC)		1250VDC
Rated Impact Voltage Uimp (kV)		6
Ultimate Breaking Capacity Icu (kA)		6
Run Breaking Capacity Ics (%Icu)		100
Curve Type		C
Trip Type		Thermal- magnetic
Mechanical	Actual average value	20000 times
	Standard value	8500 times
Electric	Actual average value	2500 times
	Standard value	1500 times
Wiring Capacity (mm²)		In≤32A,1.5~6 mm², In ≥40A,10~16mm²
Ambient Temperature		-20ºC~+70ºC
Altitude		≤2000 m
Relative Humidity		≤9 .5%
Pollution Level		2, 3
Installation Environment		No obvious shock and vibration
Installation Category		Class II, Class III
Installation		Standard din rail

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Company Profile

Mindian Electric Co., Ltd. is a high-tech enterprise integrating R&D, manufacturing, and sales, specializing in smart power distribution and renewable energy solutions. Our products serve residential, commercial, and industrial sectors, and cover:

&



Other electrical protection and connection devices

With advanced manufacturing equipment and automated testing systems, our products are certified by CE, CB, TÜV, SAA, and exported to more than 60 countries. We've supported a cumulative installed capacity of over 5GW.

Backed by strong R&D and engineering capabilities, Mindian Electric offers both standard products and customized OEM/ODM services. We are committed to delivering safe, reliable, and efficient power solutions to drive the global transition toward clean energy and smart power systems.

FAQ

1. What is the rated voltage and current of the MDB1Z-63 DC MCB?
The MDB1Z-63 is available in 600V and 1000V DC versions, with current ratings from 10A to 63A.

2. Can this breaker be used in solar PV systems?
Yes, it is specifically designed for DC applications such as solar photovoltaic systems.

3. Is the MDB1Z-63 suitable for residential and commercial use?
Absolutely. Its compact size and high performance make it ideal for both home and industrial electrical systems.

4. What curve type does this MCB use?
It uses the L7 curve, designed for precise DC circuit protection with fast tripping characteristics.

5. Does it support 2-pole or 4-pole configurations?
The MDB1Z-63 is available in 2P versions. For 4P options, please contact us for availability.

6. What certifications does this breaker have?
It complies with IEC60947-2 standards and is certified with CE, CB, and TUV.

7. Can I use this MCB with battery energy storage systems?
Yes, it is suitable for DC protection in battery systems, inverters, and off-grid setups.

8. What is the arc extinguishing performance?
The breaker features efficient arc suppression and fast interruption to enhance safety.

9. Can I request a custom version or OEM label?
Yes, OEM and ODM services are available with customer branding upon request.

10. What is the typical delivery time?
Samples ship in 1–2 days. Small orders ship in 3–5 days, and bulk orders in 7–10 days depending on quantity.