Type B Residual Current Circuit Breaker IDB-4 4P-40A-300 mA

The Circutor IDB-4 4P-40A-300 mA Type B Residual Current Circuit Breaker (code P17222) is designed to protect electrical installations and individuals against fault currents in systems that require robust protection against electrical failures. This 4-pole model, with a rated capacity of 40 A and a sensitivity of 300 mA, offers reliable protection for critical installations such as computer systems, variable speed drives, photovoltaic installations, and electric vehicle charging points.

Advanced protection with instant tripping: This residual current circuit breaker provides protection against sinusoidal alternating currents and pulsating direct residual currents, as well as alternating currents up to 1 kHz and pure direct currents, making it an advanced solution for modern installations with complex electronic loads. Its instant tripping curve ensures a quick response to any residual current, providing a high level of safety to protect both people and equipment.

Versatile applications: The IDB-4 is ideal for applications where electrical supply continuity is critical, such as in uninterruptible power systems (UPS), variable speed drives, and electric vehicle charging systems. It is also suitable for photovoltaic installations, where residual currents can vary depending on operating conditions. Its sensitivity of 300 mA makes it perfect for protecting machinery and equipment, preventing damage from fault overcurrents.

Easy DIN rail installation: This residual current circuit breaker is designed to be mounted on a DIN rail, facilitating its integration into electrical panels. With compact dimensions of 72 x 80 x 68 mm and a weight of 0.3 kg, it easily fits into any installation, optimising the available space in the electrical panel.

Durability and reliability: The Circutor IDB-4 has a long service life with up to 4000 mechanical operations and 2000 electrical cycles, ensuring reliable performance over time. Additionally, it is built with a protection degree of IP20 at the terminals and IP41 at the front, ensuring its durability in industrial and commercial environments.

Technical specifications:

• Rated current: 40 A.
• Sensitivity: 300 mA.
• Rated voltage: 230 V ~ / 400 V ~.
• Frequency: 50/60 Hz.
• Mechanical life: 4000 operations.
• Electrical life: 2000 cycles.
• Protection degree: IP20 (terminals), IP41 (front).
• Dimensions: 72 x 80 x 68 mm.
• Weight: 0.3 kg.

Total protection and standards: This Type B residual current circuit breaker complies with international standards IEC 61008, IEC 62423, and IEC 61008-2-1, ensuring it is designed and tested to offer maximum electrical safety. It is classified in the installation category CAT III, making it suitable for a wide variety of industrial and commercial environments. Additionally, it provides protection against electric shocks through double insulation (Class II), ensuring safe operation even under the most demanding conditions.

System advantages:

• Advanced Type B protection for alternating and direct currents, ideal for critical applications.
• Instant tripping, ensuring a rapid response to electrical faults.
• Easy DIN rail installation, optimising space in electrical panels.
• Proven durability, with a long mechanical and electrical life.

The Circutor IDB-4 4P-40A-300 mA residual current circuit breaker is an ideal solution for protecting critical electrical systems against residual currents. Its ability to handle various types of currents and its compact design make it a reliable and efficient choice for diverse industrial and commercial applications.