Commel RCCB 40A 4P 30mA, 6kA residual current circuit breaker

Product overview

Commel residual current circuit breaker (RCCB) 40A, 4-pole, 30mA, 6kA is designed to increase electrical safety in homes and apartments. Installed in the distribution board, it helps protect people from electric shock and provides additional protection against fault currents.

Equipped with a front test button, the device’s operation can be checked regularly in a simple and safe way.

Key features

• Rated current: 40A
• Number of poles: 4P
• Rated residual operating current: 30mA
• Breaking capacity: 6kA
• Type: Commel residual current circuit breaker (RCCB)
• Suitable for use in residential and similar electrical installations

Installation and compatibility

• Can be connected using fork or pin type busbars, allowing easy series connection with other modular devices
• Mounting on standard 35 mm DIN rail, widely used in domestic distribution boards
• Compatible with conductor cross-sections up to 25 mm², providing flexibility for different cable sizes

Operating conditions

• Ambient temperature range: -25°C to +40°C
• Maximum relative humidity: up to 95% under suitable conditions

These parameters make the RCCB suitable for typical indoor installation environments, when installed and used according to applicable standards.

Practical details

• Labelling window on the front for clear circuit identification
• Coloured status indicator for quick visual check of the switching state
• Test button to verify correct operation – regular testing is recommended according to regulations and manufacturer guidance

Application

This Commel RCCB is intended for use in distribution boards of houses, apartments and similar buildings, as part of a properly designed and installed electrical system. It contributes to increased safety but does not replace correct wiring practices, overcurrent protection or professional installation.

For selection and installation, always follow relevant standards and consult a qualified electrician.