Based on this product's specifications, here are some alternatives and similar models
Legrand 411786 TX3 Residual Current Circuit Breaker 63A 4-Pole 300mA Type A
Summary description:
The Legrand 411786 TX3 is a 4-pole residual current circuit breaker designed for electrical safety. It features a 63A rated current, 300mA sensitivity, and is classified as Type A for AC and pulsating DC residual currents. This modular device is suitable for protecting circuits against earth fault currents in residential and commercial installations, ensuring reliable operation at 400VAC.