Residual current relay with automatic circuit breaker Legrand 411057 (C, 10A, 4P, 30mA, 230V)

Description

Legrand 411057 – a residual current circuit breaker with overcurrent protection (RCBO), designed for protection against short-circuit and residual current faults.

This 4-pole RCBO with a C characteristic and 30mA sensitivity is suitable for use in low-voltage electrical networks. Its rated short-circuit capacity according to IEC 60947-2 is 10 kA, ensuring reliable system protection in situations with high fault currents.

Specification

• Number of poles: 4
• Number of protected poles: 2
• Rated voltage: 230 V AC
• Rated current: 10 A
• Rated residual current: 0.03 A (30 mA)
• Residual current type: AC
• Tripping characteristic: C (designed for general-purpose protection against overloads and short-circuits)
• Rated short-circuit capacity (according to IEC 60947-2): 10 kA (ensures reliable protection in case of high short-circuit currents)
• Frequency: 50 Hz
• Module width: 4 modules
• Mounting depth: 44 mm
• Connectable conductor cross-section (single wire): 1-35 mm²
• Connectable conductor cross-section (multi-wire): 1-25 mm²
• Degree of protection: IP20 (protection against solid particles larger than 12.5 mm)

Manufacturer

🔗 Manufacturer's link

Documents / Certificates

🔗 Datasheet

Frequently Asked Questions (FAQ)

What is a Residual Current Circuit Breaker with Overcurrent Protection (RCBO)?

An RCBO is a device that combines the functions of a residual current device (RCD) and an automatic circuit breaker into one unit, protecting electrical circuits from overloads, short-circuits, and earth fault currents.

What distinguishes a Type C RCBO?

A Type C RCBO is designed for general-purpose protection. It trips when the current exceeds the rated current by 5–10 times, making it suitable for most residential and commercial premises with certain inductive loads.

What does 30mA residual current sensitivity mean?

30mA residual current sensitivity means that the device will automatically disconnect the electrical circuit if the earth leakage current reaches 30 milliamperes. This is a standard sensitivity designed to protect people from electric shock.