DC overcurrent circuit breaker 10kA PL7-C16/1-DC 264889

DC Circuit Breakers PL7-DC – reliable protection in DC installations

The PL7-DC series circuit breakers are compact devices designed to protect direct current (DC) circuits. They are characterized by high reliability and efficiency, ensuring the safety of installations and equipment. This particular model, PL7-C16/1-DC, is a single-pole circuit breaker with a rated current of 16A, designed to operate in systems with a voltage of up to 250V DC.

PL7-DC circuit breakers are used in a wide range of installations, such as:

• Photovoltaic (PV) systems – protection of strings and DC circuits.
• Electric vehicle chargers – protection against overload and short circuit.
• LED lighting installations – protection of power circuits.
• Uninterruptible power supply (UPS) systems – protection of components.
• Industrial applications requiring DC protection.

Characteristics and construction

The PL7-C16/1-DC circuit breaker has a C characteristic, which means it is a circuit breaker with medium-time delay tripping. This allows for temporary overloads, such as starting currents of motors or transformers, without unnecessary tripping of the circuit. At the same time, it provides effective protection against long-term overloads and short circuits. The rated short-circuit breaking capacity (Icu) is 10kA at 230V and 400V DC, which guarantees safety in the event of serious disturbances in the installation.

The circuit breaker's construction is designed for easy mounting on a TH35 rail. Compact dimensions (1 module width) allow for optimal use of space in the distribution board. The circuit breaker allows connection of wires with a cross-section from 1 to 25 mm², both solid and stranded. Additionally, it has double comb/lift terminals for easy connection of busbars or wires. The IP20 degree of protection provides protection against accidental contact.

Key features:

• Rated current: 16 A - matched to typical loads in DC installations.
• Characteristic C: provides protection against overloads and short circuits while maintaining tolerance to short-term current surges.
• Breaking capacity: 10 kA - high value guaranteeing installation safety.
• Mounting: on TH35 rail - standard mounting facilitating integration with existing distribution boards.
• Wire cross-section: 1…25 mm² - flexibility in choosing wires of appropriate thickness.
• Rated voltage: 250 V DC - dedicated to low-voltage DC installations.
• Operating temperature: -25…75 °C - possibility of use in a wide range of ambient temperatures.