Overcurrent circuit breaker with residual current device 1+N-pole PKNM-16/1N/B/003-A-MW 236205

Multifunctional electrical installation protection

Overcurrent circuit breaker with a residual current module PKNM-16/1N/B/003-A-MW is a reliable device that combines functions of protection against overload and short circuit, as well as provides personal protection against electric shock. It is a key element of every safe electrical installation, both in residential and commercial buildings. The device is designed to protect circuits with a voltage of 230V.

Design and application

This circuit breaker combines the features of a type B overcurrent circuit breaker and a type A residual current device (30mA). This ensures comprehensive protection of the installation and users. Characteristic B means that the circuit breaker reacts quickly to short circuits, but is more tolerant to short-term overloads, which is particularly important when connecting devices with electric motors or other loads with high starting current. Combining it with a residual current function guarantees a quick disconnection of the circuit in the event of a leakage current to earth, minimizing the risk of electric shock.

The circuit breaker occupies 2 modules on a TH-35 rail, allowing for efficient use of space in the distribution board. It is designed for mounting in single-phase circuits with a neutral conductor (1P+N). The rated residual current of 0.03A ensures high effectiveness of protection against electric shock.

Key features and benefits

• Comprehensive protection: Combining overcurrent and residual current functions in one device simplifies installation and increases safety.
• Characteristic B: Provides a quick response to short circuits and tolerance to short-term overloads, ideal for devices with motors.
• High breaking capacity: The rated short-circuit breaking capacity Icn is 10kA, which guarantees effective disconnection of the circuit in the event of a serious failure.
• Personal safety: Sensitivity A (30mA) ensures a quick response to leakage currents to earth, protecting users from electric shock.
• Easy installation: Compact dimensions (2 modules) and standard mounting on a TH-35 rail facilitate installation and replacement of the device.
• Wide range of applications: Suitable for protecting lighting circuits, socket circuits and other loads in residential and commercial buildings.
• Durable construction: Made of high-quality materials ensuring long-lasting and reliable operation at temperatures from -25°C to 40°C.
• Compliance with standards: Meets the requirements of EN 61009-1 and EN 61009 standards, guaranteeing safety and reliability of operation.

Additionally, the circuit breaker has a protection degree of IP20, which means protection against touching with a finger and solid objects larger than 12.5 mm. The cross-section of the connected single-wire or multi-wire conductor is from 1 to 25 mm², which provides flexibility when selecting power supply cables.