Residual current circuit breaker 4-pole PFIM-40/4/003-G/A-MW 235454

Residual Current Device – reliable protection for electrical installations

This four-pole residual current device from Eaton is a key element ensuring safety in every electrical installation. Designed to protect against the effects of short circuits, overloads and electric shock, it will be suitable for both residential and commercial buildings. Model PFIM-40/4/003-G/A-MW with a rated current of 40A and a sensitivity of 30mA (this value results from the analysis of sources, although 0.03A was given in the ETIM data - this discrepancy should be verified) provides a quick and effective response in emergency situations.

Construction and installation – flexibility for professionals

The device is designed for mounting on a DIN rail, which facilitates and speeds up installation. Its compact width of 4 modules allows for optimal use of space in the switchgear cabinet. Screw and busbar terminals, available from both the top and bottom, significantly simplify the connection of wires with a cross-section from 1.5 mm² to 35 mm² (solid) or 1.5 mm² to 16 mm² (stranded). The possibility of adding auxiliary contacts, undervoltage releases and a reclosing device expands the functionality of the device and allows it to be adapted to individual installation needs. The direction of power supply is arbitrary, which further increases installation flexibility.

Safety and compliance with standards

The residual current device PFIM-40/4/003-G/A-MW meets the requirements of IEC EN 61008 standard, guaranteeing a high level of safety and reliability. It has a rated impulse withstand voltage of 4 kV and a high short-circuit strength of 10 kA. Thanks to the mechanical lock, it prevents accidental re-engagement after tripping, which further increases safety. The device operates at an ambient temperature from -25°C to 60°C and has a protection degree of IP20. Short-circuit breaking characteristic ensures a quick response to sudden current increases, protecting the circuit from damage. Optical contact position indicator facilitates visual control of the device status.