DC overcurrent circuit breaker 10kA PL7-C3/2-DC 264897

DC Overcurrent Circuit Breakers PL7-DC – Reliable Protection in DC Installations

The PL7-DC series of circuit breakers from Eaton are compact and efficient devices designed to protect direct current (DC) circuits. They provide effective protection against overloads and short circuits, ensuring the safety of installations and equipment. This particular model, PL7-C3/2-DC, is a two-pole circuit breaker with a C characteristic, ideal for applications requiring protection against short-term overcurrents.

Characteristics and Application

The PL7-C3/2-DC circuit breaker with a C characteristic is characterized by a delayed tripping time in the event of an overload. This makes it particularly useful in circuits with loads generating high inrush currents during start-up, such as motors or transformers. A rated current of 3A makes it suitable for protecting circuits with lower loads. The two-pole design allows for the simultaneous disconnection of two conductors, increasing safety in the event of a failure.

These circuit breakers are widely used in:

• Photovoltaic (PV) installations – protection of strings and DC circuits.
• Uninterruptible Power Supply (UPS) systems.
• LED lighting – especially in installations powered by direct current.
• Automotive and industrial applications using DC voltage.
• Control and automation circuit protection.

Key Features and Benefits

• High short-circuit interrupting capacity: 10 kA at 220V and 400V DC ensures effective circuit disconnection in the event of a short circuit, minimizing the risk of damage.
• C characteristic: Delayed tripping time allows for trouble-free starting of devices generating inrush currents, avoiding unnecessary tripping.
• Wide range of wire cross-sections: The ability to connect wires with a cross-section from 1 to 25 mm² provides installation flexibility and adaptation to different needs.
• Compact dimensions: A width of only 2 modules allows for efficient use of space in the distribution board.
• IP20 degree of protection: Provides protection against accidental contact and contamination under normal operating conditions.
• Compliance with standards: The circuit breaker meets the requirements of IEC 60947-2, guaranteeing safety and reliability.
• Expandability: Compatibility with additional accessories allows you to customize the circuit breaker's functionality to specific application needs.
• Rated insulation voltage Ui: 440V provides additional safety when working with the device.

This circuit breaker features a rated current of 3A and a rated voltage of 220V. It has a C tripping characteristic and a short-circuit interrupting capacity of 10kA at 230V and 400V DC. It accepts solid and stranded wire cross-sections from 1 to 25 mm².

This model of overcurrent circuit breaker is a solid solution for professionals and end-users looking for reliable DC installation protection. Its compact size, high performance, and compliance with standards make it an ideal choice for a wide range of applications.