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3RV2021-4AA20

Marvo Stock ID: MV-781E

£96.05 (ex. VAT)

Siemens

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Specifications

Specification Description
Part Number 3RV2021-4AA20
Alternative Part Number 3RV20214AA20
Manufacturer Siemens
Type Circuit Breaker
Rated Current 16 A
Rated Voltage 690 V ac
Mounting Type DIN Rail Mount
Short Circuit Breaking Capacity 2 kA
Number of Poles 3 Poles
Terminal Type Spring-loaded terminals
Electrical Endurance 100,000 switching cycles typical
Mechanical Service Life 100,000 switching cycles typical
Ambient Operating Temperature Range -20...+60 °C
Installation Altitude Up to 2,000 m above sea level
Relative Humidity 10...95 % during operation
Protection Type Increased safety, finger-safe
Certificate of Suitability ATEX
Compliance CE, UL, CSA
Product Approvals For use in hazardous locations
Tripping Characteristics Adjustable pick-up value current of the current-dependent overload release 10...16 A

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3RV2021-4AA20 Product Description

The Siemens 3RV2021-4AA20 is a robust circuit breaker designed for industrial applications requiring reliable protection against overloads and short circuits. This three-pole device is engineered to handle a maximum operating voltage of 690 V ac, making it suitable for a wide range of electrical systems. With a 16 A current rating, it ensures safe operation of motors and other electrical equipment by interrupting power in the event of a fault.

Featuring a DIN Rail mount design, the 3RV2021-4AA20 allows for quick and easy installation within control cabinets, streamlining the setup process in various industrial environments. The circuit breaker is equipped with a magnetic short-circuit trip mechanism, ensuring rapid response to fault conditions and minimising potential damage to connected equipment.

The compact dimensions of this circuit breaker, with a width of only 45 mm, make it an efficient choice for space-constrained applications. It also boasts a mechanical service life of 100,000 switching cycles, indicating a long-lasting and durable performance.

Designed with safety in mind, the 3RV2021-4AA20 has an IP20 protection rating, providing a degree of protection against solid objects and ensuring the safety of personnel during operation and maintenance. Its compliance with international standards, including ATEX certification for increased safety, underscores its suitability for use in demanding industrial settings.

Overall, the Siemens 3RV2021-4AA20 circuit breaker is a reliable and efficient solution for protecting electrical circuits in a variety of industrial applications, offering both performance and peace of mind.

Frequently Asked Questions

What type of device is this circuit breaker suitable for?

The Siemens circuit breaker is suitable for protecting electrical circuits from overloads and short circuits in industrial, commercial, and residential applications. It's designed for DIN rail mounting and can be used in a variety of devices that require circuit protection up to 16 A and 690 V ac.

Can this circuit breaker be used in hazardous locations?

Yes, this circuit breaker has been designed with safety in mind and has approvals for use in certain hazardous locations. It's important to check the specific certifications and standards it meets for your particular application.

What is the interrupting capacity of this circuit breaker?

This circuit breaker has an interrupting capacity of 2 kA, which indicates its ability to safely disrupt a short-circuit current without damage.

How many poles does this circuit breaker have?

This circuit breaker is a 3-pole device, which means it can be used to protect three-phase circuits.

What is the operating temperature range for this circuit breaker?

The operating temperature range for this circuit breaker is from -20°C to +60°C, ensuring reliable performance across a wide range of environmental conditions.

What type of terminals does this circuit breaker have?

This circuit breaker is equipped with spring-loaded terminals for the main current circuit, providing a secure and maintenance-free connection.

Is there a need for additional spacing when installing this circuit breaker?

When installing this circuit breaker, it's recommended to maintain a spacing of 50 mm upwards and downwards, and 30 mm at the side for live parts at 690 V to ensure safe operation and adequate ventilation.

What is the mechanical service life of this circuit breaker?

The mechanical service life of this circuit breaker is typically 100,000 switching cycles for both the main and auxiliary contacts, indicating its durability and longevity.

Does this circuit breaker offer short-circuit protection?

Yes, this circuit breaker includes a magnetic short-circuit trip feature, providing reliable protection against short-circuit conditions.

What is the tripping characteristic of this circuit breaker?

The tripping characteristic of this circuit breaker is designed to respond to current-dependent overloads, with an adjustable pick-up value current ranging from 10 to 16 A.