DC Circuit Breaker Alpha+ 500VDC 2P, 25A, C-curve 6kA - EPB63MDC2C25

DC Circuit Breaker Alpha+ 500VDC 2P, 25A, C-curve 6kA - EPB63MDC2C25

The Maxge Alpha+ 500 VDC 2P, 25 A DC Circuit Breaker is a circuit breaker specifically designed for the protection of direct current (DC) circuits in high voltage DC installations.

With a rated voltage of 500VDC, a rated current of 25A and a two-pole (2P) configuration, this circuit breaker provides effective protection against overloads and short circuits, balancing sensitivity and robustness to offer reliable, safe protection adapted to the requirements of medium and high-demanding electrical installations.

In addition, it has a breaking capacity of 6kA, allowing it to safely interrupt fault currents of up to 6,000 amps.
It therefore guarantees the integrity of the electrical panel and the protection of the connected equipment even under severe short-circuit conditions.

This circuit breaker belongs to the Alpha+ DC family, a range developed with technical criteria oriented to the particular characteristics of direct current, where the absence of zero crossings of the signal and the persistence of electric arcs require a specific design to guarantee an efficient fault interruption.

Main features of the Alpha+ DC MCB 500VDC 2P, 25A

Full bipolar protection

Being a 2-pole MCB (2P), The DC circuit can be disconnected at the same time from the two main conductors (positive and negative), increasing operational safety and facilitating maintenance.

This is particularly important in DC installations, as it ensures complete isolation of the system in the event of a fault and reduces electrical hazards.

More demanding loads

With a 25 ampere rated current, This circuit breaker is designed for lines with higher consumption than standard 16 A or 20 A circuits.

It is commonly found protecting circuits with moderate-high power consumption, auxiliary power supplies or specific loads within more complex systems.

Provided that the installation is correctly dimensioned (adequate cable cross-section and additional protections)., The circuit breaker ensures stable, safe operation without unnecessary outages.

Balance between protection and stability

The DC Alpha+ 500VDC 2P, 25A DC circuit breaker incorporates a firing curve C, which is designed to tolerate moderate current peaks without causing untimely tripping.

The C-curve provides an optimum balance between sensitivity and tolerance, maintaining effective protection against dangerous overcurrents and overloads without affecting the normal operation of the installation.

This avoids nuisance tripping, but does not reduce the protection against real short circuits.
In addition, the installation is more stable

It is therefore suitable for circuits with moderate start-up peaks, such as photovoltaic systems, battery banks, inverters, electronic equipment, and DC energy storage systems.

High short-circuit resistance

Your 6 kA breaking capacity means that it can safely interrupt major short circuits of up to 6,000 amperes without damage or loss of properties.

It is a value that ensures an adequate and safe level of protection within most industrial or commercial direct current (DC) applications.

It provides a good level of safety and protection for most common low voltage DC installations.

Safety in direct current (DC) installations

The interruption of direct current is more demanding than alternating current due to the absence of zero crossing.

For this reason, this circuit breaker is designed with arc extinguishing systems suitable for DC, guaranteeing a safe and durable cut.

As a result, the Alpha+ DC MCB offers a robust, reliable and ready-to-use solution for effective protection of DC electrical systems.

Easy installation and compact design

The DC Alpha+ 2P, 25A is designed to DIN rail mounting, This facilitates a quick and tidy installation in any electrical panel, and favours the expansion and organisation of the distribution.

Your terminals are prepared to accept cables with a cross-section suitable for this current rating (16mm² in flexible cable and 25mm² in rigid cable). This guarantees firm and secure connections, without overheating or false contacts.

In addition, it has a compact 36 mm wide design (18 mm per pole), and it features window for circuit marker y a visual status signalling (on/off), The circuit it protects can be easily identified.
Therefore, it provides a quick diagnosis and is very easy to maintain.

Alpha+ 500VDC 2P, 25A, C-curve, 6kA - EPB63MDC2C25 DC Circuit Breaker - Operation and Applications

This circuit breaker protects the circuit by means of two complementary systems:

• Thermal protection (overload): acts when the current exceeds safe values for a prolonged period of time, preventing excessive heating of the conductors and possible damage to equipment or risk of fire.
• Magnetic protection (short circuit): responds almost instantaneously to very high currents, cutting off the supply and protecting the installation against serious faults.

In this way, the circuit breaker protects against both progressive increases in current and sudden faults, ensuring a fast and effective response.

Main advantages of the Alpha+ DC Circuit Breaker 500VDC 2P, 25A

This circuit breaker has the following advantages:

• Safe DC operation: guarantees a correct extinguishing of persistent electric arcs in direct current.
• Optimised for direct current up to 500 V: provides greater safety and control in installations operating at high DC voltages.
• 2-pole for complete disconnection of the DC circuit: improves safety in maintenance and operation.
• Balanced C-curve: tolerates temporary power surges, without unnecessary tripping.
• High breaking capacity of 6 kA: allows circuits to be effectively protected against significant power failures.
• Versatile installation: is easily mounted on DIN rail, allowing modularity and order in the electrical panel.
• Double thermal and magnetic protection: integrates safe protection against overloads and short circuits.
• Reduces contact wear and prolongs service life: thanks to technical solutions for arc control and adapted geometries.

Technical Information for Alpha+ 500VDC 2P, 25A, C-curve, 6kA DC Circuit Breaker - EPB63MDC2C25

Data sheet Magnetotermico DC Alpha+ 500VDC 2P, 25A