3RV2121-4AA10 | MPCB 10 – 16 A, Relay Function, O/L & S/C – Siemens

The 3RV2121-4AA10 is a Motor Protection Circuit Breaker (MPCB) manufactured by Siemens, designed to provide reliable protection for motors and other electrical equipment. This device combines the functions of a circuit breaker and a motor protector, ensuring safe operation and preventing damage due to overloads and short circuits.

Key Features:

• Current Range: 10 – 16 A
• Relay Function: Integrated relay functionality for enhanced control and protection.
• Overload (O/L) Protection: Protects against excessive current that could damage the motor or connected equipment.
• Short Circuit (S/C) Protection: Safeguards against short circuit conditions, ensuring quick disconnection to prevent damage.
• Compact Design: Space-saving and easy to install in control panels and motor control centers.
• High Performance: Reliable operation under demanding industrial conditions.
• Compatibility: Suitable for use with a wide range of motors and electrical systems.

Applications:

The 3RV2121-4AA10 is ideal for use in various industrial and commercial applications, including:

• Motor protection in manufacturing and processing plants.
• Protection of pumps, fans, and compressors.
• Integration into motor control centers (MCCs) and control panels.
• Use in HVAC systems and other machinery requiring reliable motor protection.

Technical Specifications:

Benefits:

• Ensures safe and reliable motor operation.
• Reduces downtime by preventing motor damage.
• Easy to install and maintain.
• Durable and designed for long-term use in harsh environments.