TOMZN 2P 125A DC MCB 1000V Solar DC Circuit Breaker

TOMZN 2P 125A 1000V DC MCB – High-Performance Solar DC Circuit Breaker

The TOMZN 2P 125A DC Miniature Circuit Breaker (MCB) is a heavy-duty protection device designed specifically for high-voltage DC applications, such as solar photovoltaic (PV) systems, battery energy storage systems (ESS), and DC distribution panels. Engineered to operate efficiently up to 1000V DC, it offers robust protection against overloads and short circuits, safeguarding your critical solar infrastructure.

Featuring a 2-pole design, the TOMZN DC MCB provides simultaneous switching and isolation of both the positive and negative lines, ensuring maximum safety and compliance with international DC protection standards. Its rated current of 125A makes it ideal for high-capacity solar strings, large battery banks, and commercial-scale solar installations.

Built for reliability and ease of use, the breaker is housed in a durable, flame-retardant thermoplastic enclosure, resistant to heat, UV radiation, and harsh environmental conditions. Its compact size and DIN rail mounting make installation simple and space-efficient in solar combiner boxes, DC disconnects, and inverter input panels.

The thermal-magnetic trip mechanism ensures fast and accurate protection under both prolonged overload and instantaneous short-circuit conditions, minimizing damage risks and downtime.

Key Features:

Why Choose TOMZN 2P 125A 1000V DC MCB?

TOMZN is a trusted name in solar protection and electrical safety solutions. The 2P 125A 1000V DC MCB combines robust protection, high-performance design, and superior durability to meet the needs of modern solar and DC power systems. Whether used in residential, commercial, or industrial installations, TOMZN circuit breakers ensure your solar investments are protected with maximum reliability and efficiency.

Benefits:

• High Voltage and Current Handling: Supports demanding 1000V DC solar and storage applications

• Enhanced Safety: 2-pole isolation ensures complete disconnection of both DC lines

• Reliable Protection: Fast thermal-magnetic response against overloads and short circuits

• Durable Construction: Built to withstand outdoor and indoor harsh conditions

• Quick Installation: DIN rail mounting for easy setup and maintenance

• Long Service Life: High mechanical and electrical endurance for extended system reliability

Applications:

• Solar PV systems (string-level and main DC protection)

• Battery energy storage systems (ESS)

• Hybrid solar installations (grid-tied/off-grid)

• DC distribution and control panels

• Industrial DC circuits