2P 500V 63A DC Miniature Circuit Breaker

The GREENWATT supplier’s 2P 500V 63A DC miniature circuit breaker MCB is a product made for protecting DC500V circuits. It has 2 poles, so it provides double-pole protection for your DC system. This is important because DC circuits need to disconnect both poles to ensure safety. Its rated current is 63A, which is suitable for most small to medium DC loads, such as small-scale solar energy systems or DC-powered industrial devices.

This ZAB1Z-63 2P 500V 63A DC miniature circuit breaker has several key features. First, it has overload protection. If the current in the circuit goes over 63A, the MCB will automatically trip. This stops the current and prevents the wires or equipment from overheating. Second, it has short-circuit protection. When a short circuit occurs (like a wire touching another wire), the MCB will quickly turn off the current. This avoids fires or damage to expensive equipment.

Product Positioning and Application Scenarios

The 2P 500V 63A DC miniature circuit breaker is primarily used for the protection of DC circuits below 500V. Common applications include:

Small and medium-sized photovoltaic systems

DC-side protection of energy storage battery packs

Communication power systems

Industrial DC control systems

DC distribution boxes

Dual systems differ from AC systems; when disconnecting, both positive and negative terminals must be disconnected simultaneously to prevent continuous arcing. Therefore, this 2P 500V 63A DC miniature circuit breaker adopts a bipolar synchronous breaking structure to meet the safety requirements of DC systems.

Core Function Description

1.Overload Protection

When the line current exceeds the rated value of 63A, the internal thermal trip mechanism will activate, causing the circuit breaker to trip automatically, preventing prolonged overcurrent from causing conductor overheating or equipment damage.

2.Short Circuit Protection

In the event of a short circuit, the magnetic trip system will respond quickly, instantly cutting off the circuit, reducing the risk of arcing and protecting downstream equipment.

3.Bipolar Synchronous Disconnection

Disconnecting only one pole in a DC system may still pose a safety hazard. The GreenWatt 2P 500V 63A DC miniature circuit breaker uses a bipolar structure to ensure that both positive and negative poles are disconnected simultaneously.

Technical Data

Structural and Material Advantages

Flame-retardant Housing Design

The housing is made of flame-retardant engineering plastic material, which is not easily deformed in high-temperature environments, reducing the risk of fire.

T2 Copper Conductive Components

The internal conductive components are made of T2 copper, which has stable conductivity, good temperature rise control, and does not easily overheat during long-term operation.

Compact Design

Small size, installed on a standard DIN rail, saving internal space in the distribution box, suitable for projects with limited space.

Installation and Usage Instructions

Installation Method: Standard DIN rail installation

Recommended Installation Environment: Indoor or in a waterproof distribution box

Recommended to use with DC dedicated terminal blocks

For outdoor use, a rainproof and dustproof housing is required.

FAQ

Q1: Can this circuit breaker be used in photovoltaic systems?

Yes, it is commonly used in small photovoltaic arrays or energy storage systems in DC 500V systems.

Q2: Is double-pole disconnection mandatory?

It is recommended to use a double-pole circuit breaker in DC systems to ensure that the positive and negative poles are disconnected simultaneously, improving safety.

Q3: Can it operate at full load for extended periods?

It is recommended to select a suitable model within the rated current range to avoid prolonged full-load operation and ensure service life.

Q4: Do you support bulk purchases?

Bulk orders are supported. Please contact GreenWatt for a quote and delivery information.