3RV2021-4DA10 | MPCB 18 – 25 A, Standard Release, O/L & S/C – Siemens

The Siemens 3RV2021-4DA10 is a Motor Protection Circuit Breaker (MPCB) designed for reliable protection of motors and other electrical equipment. It features a standard release mechanism with overload (O/L) and short-circuit (S/C) protection, ensuring safe and efficient operation in various industrial applications.

Key Features:

• Current Rating: 18 – 25 A
• Release Type: Standard Release
• Protection Functions: Overload (O/L) and Short-Circuit (S/C)
• Brand: Siemens
• Application: Motor protection in industrial and commercial settings
• Compliance: Meets international standards for safety and performance

Technical Specifications:

• Rated Operational Voltage (Ue): Up to 690 V AC
• Rated Insulation Voltage (Ui): 690 V AC
• Rated Impulse Withstand Voltage (Uimp): 6 kV
• Utilization Category: AC-3
• Mounting Type: DIN Rail Mounting
• Operating Temperature Range: -25°C to +60°C

Benefits:

• Provides reliable motor protection against overloads and short circuits.
• Compact design for easy installation and space-saving.
• Durable construction ensures long service life.
• Compatible with Siemens SIRIUS modular system for flexible configurations.

Applications:

The 3RV2021-4DA10 is ideal for use in motor control centers, conveyor systems, pumps, fans, and other industrial machinery requiring robust motor protection. It is suitable for both new installations and retrofitting existing systems.