DC MCCB (=1500Vdc)

Type: Category A 1500V DC MCCB, with isolation function

Main Ratings: 12kV Uimp; 400/630A frame, 250-400A rated current; 40℃ rated ambient temperature

Performance: 15kA short-circuit breaking capacity, 10×In instantaneous trip; IP20 protection

Standard & Certification: Compliant with IEC/EN 60947-2, GB/T 14048.2; CE, CCC, CB certified

Application: For 1500V DC PV and energy storage power systems

Documents: Manual, datasheet, certificates and 3D drawings provided

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Product Description
Specification
Product Advantage

Product Description

1. General Description

This molded case circuit breaker is designed for DC distribution systems with rated voltage up to 1500V DC. It provides overload and short-circuit protection for DC circuits, and features certified isolation function for safe circuit maintenance. Suitable for photovoltaic energy storage and other high-voltage DC application scenarios.

Specification

2. Main Electrical Ratings

Item	Parameter
Rated operational voltage (Ue)	DC 1500V
Rated impulse withstand voltage (Uimp)	12kV
Rated insulation voltage (Ui)	1500V
Frame current specifications	400A, 630A
Rated operational current (In)	250A, 315A, 350A, 400A
Ultimate short-circuit breaking capacity (Icu)	15kA @ DC1500V
Trip characteristic	Instantaneous short-circuit trip: 10×In (Category A)
Reference ambient temperature for rated current	40°C
Isolation function	Equipped (meets disconnector requirements)
Protection type	Thermal-magnetic overload & short-circuit protection

3. Mechanical & Environmental Specifications

• Ingress protection grade: IP20

• Trip unit type: Thermal-magnetic fixed trip (TRP)

• Utilization category: Cat A

4. Compliance Standards

Fully compliant with domestic and international standards:

• IEC/EN 60947-2 Low-voltage switchgear and controlgear – Part 2: Circuit-breakers

• GB/T 14048.2 Low-voltage switchgear and controlgear – Part 2: Circuit-breakers

5. Certifications

Product passed third-party testing and obtained global standard certifications:

• CE

• CCC

• CB

6. Attachable Technical Documents

Complete supporting technical files available for engineering application:

1. General Product Catalogue (PDF)

2. CE Certification Document (PDF)

3. TUV Test Certificate (PDF)

4. 3D Model STP Drawing File

5. Operation & Maintenance Manual (PDF)

6. Detailed Electrical Datasheet (PDF)

7. Application Scope

Applicable to 1500V DC photovoltaic power stations, energy storage systems, DC power distribution cabinets, and other high-voltage DC power supply systems for circuit protection and load switching.

Product Advantage

1

High Voltage Resistance: Rated 1500V DC, 12kV impulse withstand voltage
2

Strong Breaking Performance: 15kA short-circuit breaking capacity for stable protection
3

Built-in Isolation: Ensures safe on-site maintenance operation
4

Flexible Current Options: 250A-400A multi current specifications
5

Authorized Certification: Compliant with global standards, CE/CCC/CB approved
6

Sufficient Technical Materials: Full documents and 3D drawings available