Overcurrent circuit breaker Icn=10000A / Icu=15kA 3P D 20A NDN320

Overcurrent circuit breaker – reliable protection for electrical installations

This three-pole overcurrent circuit breaker from Hager is a key element of every safe electrical installation. It provides effective protection against overloads and short circuits, protecting both devices and users. Characteristic D makes it particularly recommended for circuits with high starting currents, e.g. powering motors or transformers. The rated short-circuit breaking capacity of 15 kA (at 400 V) guarantees high reliability in emergency situations.

Solid construction and wide application

The circuit breaker has been designed with durability and ease of installation in mind. A width of 3 modules allows for efficient use of space in the distribution board. The possibility of flush mounting increases the aesthetics of the installation, and the high resistance to environmental conditions (operating temperature from -25°C to 70°C) ensures trouble-free operation even in difficult conditions. Suitable for use with wires with a cross-section from 1 mm² to 35 mm², which provides great flexibility when choosing the right cables.

Key features and benefits

• High short-circuit breaking capacity: Icn=10 kA / Icu=15 kA – ensures a quick and effective response in the event of a failure, minimizing the risk of damage and fire.
• Characteristic D: ideal for circuits with devices with high starting current, such as motors or transformers – allows for trouble-free starting of devices without unnecessary tripping of the circuit breaker.
• Flush mounting: aesthetic appearance of the installation and discreet placement of the circuit breaker in the wall or other structural element.
• Wide voltage range: operation at a rated voltage of 400 V and a frequency of 50-60 Hz – versatility of use in various types of electrical installations.
• Durability and reliability: made of high-quality materials, meeting strict safety standards – a guarantee of long-term and trouble-free operation.
• Expandability: compatible with additional Hager accessories – the ability to adapt functionality to individual installation needs.
• Protection class IP20: protection against touching with a finger and solid objects larger than 12.5 mm - basic safety of use in standard conditions.