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3RV2021-4NA25 | MPCB 23 – 28A, 1 NO + 1 NC, Standard Release, O/L & S/C – Siemens
The Siemens 3RV2021-4NA25 is a Motor Protection Circuit Breaker (MPCB) designed to provide reliable protection for motors and other electrical equipment. This MPCB is part of the Siemens SIRIUS 3RV series, known for its robust construction and high performance in industrial applications.
Key Features:
- Current Rating: 23 – 28A
- Contact Configuration: 1 Normally Open (NO) + 1 Normally Closed (NC)
- Release Type: Standard Release
- Protection Functions: Overload (O/L) and Short Circuit (S/C) protection
- Mounting: DIN Rail Mounting
- Enclosure: Compact design for space-saving installation
- Compliance: Meets international standards for safety and performance
Applications:
The 3RV2021-4NA25 MPCB is ideal for use in a wide range of industrial applications, including motor protection, machine control, and power distribution systems. It ensures the safe operation of motors by providing reliable overload and short-circuit protection, thereby preventing damage and downtime.
Technical Specifications:
| Parameter | Value |
|---|---|
| Rated Operational Voltage (Ue) | 690V AC |
| Rated Insulation Voltage (Ui) | 800V AC |
| Rated Impulse Withstand Voltage (Uimp) | 8kV |
| Rated Frequency | 50/60Hz |
| Breaking Capacity (Icu) | 100kA at 415V AC |
| Operating Temperature Range | -25°C to +60°C |
| Storage Temperature Range | -40°C to +85°C |
Benefits:
- Enhanced motor protection with precise overload and short-circuit detection
- Compact design for efficient use of panel space
- Easy installation and maintenance
- High breaking capacity ensures reliable operation in demanding environments
- Compatible with a wide range of Siemens accessories for enhanced functionality
Product Data Sheet
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