Residual current circuit breaker 10kA, In=40A, IΔn=0.03A, Type A, 4-pole, PFIM series PFIM-40/4/003-A-MW 235439

Safety and reliability in your electrical installation

This four-pole residual current circuit breaker from Eaton's PFIM series is a key element ensuring the protection of people and devices in electrical installations. Designed to operate at 400V, it offers a rated current of 40A and a residual current sensitivity of 0.03A type A, guaranteeing a quick response in the event of a failure. Mounting is on a DIN rail, and compact dimensions (width 4 modules, depth 70.5 mm) facilitate installation even in limited space.

Functionality and technical parameters

The circuit breaker is characterized by a high short-circuit strength of 10kA, which ensures its reliable operation even in difficult conditions. The rated impulse withstand voltage is 4kV, and the IP20 protection degree protects against contact with foreign solid objects with a diameter greater than 12.5 mm. Thanks to the possibility of connecting wires with a cross-section from 1.5 to 35 mm² (solid) and from 1.5 to 16 mm² (stranded), the device is compatible with various types of cabling. The mechanical lock prevents accidental opening of the circuit breaker during operation, increasing safety.

• Protection against short circuit and overload: The circuit breaker effectively protects the circuit against the effects of short circuits and overloads, minimizing the risk of damage and fire.
• High sensitivity: Sensitivity to residual current of 0.03A type A ensures a quick response to leakage current to earth, protecting users from electric shock.
• Universal mounting: DIN rail mounting allows for easy integration with existing electrical panels.
• Wide range of applications: Ideal for protecting lighting circuits, socket outlets and other electrical devices in residential and commercial buildings.
• Durable construction: Made of high-quality materials resistant to mechanical damage and weather conditions (ambient temperature: -25°C to +60°C).
• Expandability: Compatible with additional Eaton accessories, allowing you to customize functionality to individual needs.
• Compliance with standards: Meets safety requirements, ensuring compliance with applicable regulations.

Additionally, it is worth mentioning the low power losses of 13.1W at a frequency of 50Hz and the housing color close to RAL 7035 – which facilitates integration with the existing aesthetics of the electrical installation. The circuit breaker does not have a short-time release or selective protection function – this is a standard solution for this type of device intended for general use.