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EHM5DC-400 | 400A 1500V 2-Pole DC MCCB Circuit Breaker
EHM5DC is a high-performance MCCB Circuit Breaker designed specifically for DC power systems and photovoltaic applications. With a wide rated current range from 250A to 400A and working voltage up to DC1500V, this molded case circuit breaker delivers reliable protection for medium to high voltage DC circuits.
It supports a breaking capacity of 15kA to 50kA depending on the voltage level, ensuring fault isolation in demanding energy environments.
The breaker is available in 2-pole and 3-pole configurations and supports optional accessories such as alarm auxiliary, shunt release, and auxiliary contact to enhance system monitoring and control.
Specifications
| Specification | Data |
|---|---|
| Rated Current (A): | 250A, 315A, 350A, 400A |
| Rated Working Voltage: | DC250V~DC1500V |
| Breaking Capacity: | 15~50kA with different voltage |
| Number of Poles: | 2P, 3P |
| Accessory: | Alarm auxiliary; Shunt release; Auxiliary contact |
Dimension Drawing
Applications
The EHM5DC MCCB Circuit Breaker is suitable for a wide range of medium- and high-voltage DC systems:
Photovoltaic Power Systems
Provides reliable protection for solar string and main DC lines.
Industrial DC Applications
Protects DC-powered motors and automation systems.
Energy Storage Systems
Safeguards battery banks and inverter inputs.
DC Charging Stations
Handles fault isolation in EV fast-charging infrastructure.
DC Distribution Panels
Ensures circuit integrity in high-current DC branches.
Microgrids and Hybrid Systems
Offers flexible integration with multi-source DC setups.
Why Choose Us as a MCCB Circuit Breaket Supplier?
Reliable Protection
Our molded case circuit breakers provide exceptional protection against overloads and short circuits.
Wide Range of Options
We offer various molded case breakers to meet different voltage and current needs.
Durable and Long-lasting
Built for endurance, our circuit breakers are designed to perform in demanding environments.
Compliant with Standards
Our breakers meet all relevant industry safety standards for reliable and safe operation.
Customizable Designs
We offer customized molded case circuit breakers to fit your unique system specifications and needs.
Competitive Pricing
High-quality circuit breakers at affordable prices, offering excellent value and long-term performance.
FAQs
What current ratings are available for the EHM5DC?
This model supports 250A, 315A, 350A, and 400A current ratings.
What is the maximum operating voltage?
It is rated for working voltages up to DC1500V.
What is the breaking capacity?
The breaker supports a breaking capacity between 15kA and 50kA, depending on the voltage.
What pole configurations are supported?
It is available in 2P and 3P versions.
Can this breaker be used in solar power systems?
Yes, it is specifically designed for photovoltaic and other DC energy applications.
Are accessories like alarm or shunt release included?
Optional accessories include alarm auxiliary, shunt release, and auxiliary contact.
Is the EHM5DC suitable for energy storage systems?
Absolutely. It offers stable protection for ESS and battery-based systems.
What kind of systems benefit most from this breaker?
It is commonly used in PV, energy storage, DC charging, and industrial power systems.
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