STOTZ residual current circuit breaker F302-25/0,03 2P 25A 30mA

A Residual Current Circuit Breaker with Overcurrent Protection (RCBO) is an electrical safety device that combines the functions of a Residual Current Device (RCD) and a Miniature Circuit Breaker (MCB) in one unit. An RCBO offers dual protection against both residual current (leakage) and overcurrent (overload or short circuits), making it a versatile and crucial safety device in modern electrical installations.

Features:

• Earth leakage protection (RCD function):
  • Detects and trips when a leakage current exceeds a specific threshold (usually 30mA for personal protection).
• Overcurrent protection (MCB function):
  • Trips the circuit when the current exceeds a safe level, protecting against both overload (too many devices drawing power) and short circuits.
• Rated current:
  • The RCBO has a current rating (e.g., 16A, 20A, etc.), indicating the maximum current the circuit can safely carry under normal conditions.
• Combined safety:
  • Protects against two types of faults—leakage current and overcurrent—offering comprehensive protection in one device.

Applications:

• Residential:
  • Protects individual circuits, such as lighting or power outlets, ensuring that both ground faults and overcurrent issues are managed.
• Commercial and industrial:
  • Used in systems that require individual circuit protection, offering enhanced safety for critical equipment or personnel.

Advantages of RCBO:

• Compact:
  • Combines two protective devices (RCD and MCB) into one, saving space in distribution boards.
• Comprehensive protection:
  • Provides full safety coverage for both electric shocks and electrical fires.
• Selective protection:
  • Allows specific circuits to be protected without affecting the entire installation, unlike a central RCD, which could trip and cut power to multiple circuits.

Current circuit breaker technical details:

• Component type:
  • Residual current circuit breaker (RCBO)
• Number of poles:
  •  2P
• Neutral position:
  • Left
• Rated current:
  • 25A
• Earth-leakage sensitivity:
  •  30mA
• Earth-leakage protection time delay:
  • Instantaneous
• Residual current protection class:
  • Type A
• Frequency:
  • 50...60Hz
• Operational voltage:
  •  220VAC
• Rated conditional short-circuit current:
  • 10kA
• Surge current:
  • 250A
• Contact position indicator:
  • Yes