Siemens 3RV2011-1AA25 Motor Circuit Breaker, 3-Pole, 1.1-1.6A, 0.45kW

The Siemens 3RV2011-1AA25 is a professional-grade 3-pole motor circuit breaker engineered to provide robust protection for industrial electric motors. This device is specifically designed to safeguard equipment against short circuits and thermal overloads, ensuring consistent performance and preventing damage to electrical systems. With its precise current setting range and compact design, it integrates seamlessly into control cabinets and motor starter configurations.

Advantages

This motor circuit breaker offers high reliability and operational safety for demanding industrial environments. Its thermal release mechanism is adjustable, allowing for accurate calibration to the specific requirements of the connected motor. The robust construction ensures long-term durability, while the integrated design simplifies installation and maintenance processes within electrical panels. By providing both short-circuit and overload protection in a single unit, it effectively reduces the need for additional protective components.

Suitable for

• Industrial motor control applications
• Protection of small electric motors with a power rating of 0.45kW
• Integration into motor starter combinations
• Electrical distribution panels requiring compact protection devices

When it may not be suitable

This device is not intended for use with motors exceeding the specified power rating of 0.45kW or current ranges outside of 1.1-1.6A. It is also not suitable for environments that require specialized ingress protection ratings beyond standard industrial cabinet conditions.

Key specifications

• Number of poles: 3
• Current setting range: 1.1-1.6A
• Power rating: 0.45kW
• Protection type: Thermal overload and short-circuit

How to use

Installation should be performed by qualified personnel in accordance with local electrical regulations. The device is typically mounted on a standard DIN rail within an electrical enclosure. Once mounted, connect the power supply to the input terminals and the motor leads to the output terminals. Use the adjustment dial on the front of the unit to set the thermal release to the rated current of the motor. After installation, verify the connections and perform a functional test to ensure the breaker trips correctly under simulated conditions.

What to consider before purchase

• Verify that the motor's rated current falls within the 1.1-1.6A range
• Ensure the power rating of 0.45kW matches your application requirements
• Check available space in your control cabinet for mounting
• Confirm compatibility with existing DIN rail systems

Usage recommendations

Always ensure the power is disconnected before performing any installation or maintenance work. Regularly inspect the device for signs of wear or damage and verify that the settings remain calibrated to the motor's specifications.