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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2021-4AA10 |
| Alternative Part Number | 3RV20214AA10 |
| Manufacturer | Siemens |
| Type | Circuit Breaker |
| Poles | 3 Pole |
| Rated Current | 16 A |
| Rated Voltage | 690 V ac |
| Dimensions | 45 x 96.9 x 97 mm |
| Electrical Connection | Screw-type terminals for main current circuit |
| Terminal Design | Top and bottom arrangement for electrical connectors |
| Conductor Cross-section | Solid or stranded: 2x (1 ... 2.5 mm²), 2x (2.5 ... 10 mm²); Finely stranded with core end processing: 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), 1x 10 mm² |
| Tightening Torque | 2 ... 2.5 N·m |
| Screwdriver Shaft Diameter | 5 to 6 mm |
| Screwdriver Tip Size | Pozidriv size 2 |
| Connection Screw Design | M4 |
| Operating Frequency | 50 ... 60 Hz |
| Operating Power at AC-3 | 230 V: 4 kW; 400 V: 7.5 kW; 500 V: 7.5 kW; 690 V: 11 kW |
| Operating Temperature | -20 ... +60 °C |
| Mechanical Service Life | 100,000 switching cycles for main contacts |
| Electrical Endurance | 100,000 switching cycles |
| Protection Class | IP20 on the front according to IEC 60529 |
| Touch Protection | Finger-safe, for vertical contact from the front |
| Ambient Conditions | Maximum installation altitude: 2,000 m above sea level |
| Relative Humidity | 10 ... 95% during operation |
| Safety Related Data | B10 value with high demand rate: 5,000; Failure rate: 50 FIT |
| Approvals | General Product Approval for use in hazardous locations |
The Siemens 3RV2021-4AA10 is a robust circuit breaker designed for motor protection, ensuring efficient and reliable operation in a variety of industrial settings. This three-pole breaker is part of the SIRIUS product family, known for its high-quality protection devices. With a Class 10 A-release range of 10 to 16 A and a N-release of 208 A, it is equipped to handle standard switching capacities with precision.
Crafted for durability, the 3RV2021-4AA10 boasts an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV, providing a secure barrier against electrical disturbances. The device is compatible with contactor sizes S00 and S0, offering flexibility for system integration. The circuit breaker also features a screw terminal connection for a secure and stable installation.
With a total typical power loss of 7 W, this circuit breaker is designed to be energy-efficient, minimising operational costs while maximising performance. It is suitable for use in networks with grounded star points, with a safe isolation voltage of up to 400 V between the main and auxiliary circuits.
The 3RV2021-4AA10 is housed in a compact frame, measuring 45 x 96.9 x 97 mm, making it an ideal choice for space-constrained environments. Its design allows for any mounting position, providing additional flexibility during installation. The circuit breaker is also equipped with an auxiliary switch option, enhancing its functionality for various applications.
This Siemens circuit breaker is a reliable solution for motor protection, offering both performance and resilience in industrial applications. Its compatibility with a range of contactor sizes and its robust design make it a versatile choice for safeguarding electrical circuits.
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Frequently Asked Questions
What type of circuit breaker is this?
This is a 3-pole circuit breaker designed for protecting electrical circuits from overloads and short circuits.
Can this circuit breaker be used in hazardous locations?
Yes, it has approvals for use in hazardous locations, ensuring it can safely operate in such environments.
What is the rated operating voltage of this circuit breaker?
The rated operating voltage of the circuit breaker is 690 V ac.
What is the current rating for this device?
The current rating for this circuit breaker is 16 A.
What are the dimensions of this circuit breaker?
The dimensions are 45 x 96.9 x 97 mm.
Is there a specific ambient temperature range for operating this circuit breaker?
The circuit breaker can operate within an ambient temperature range of -20 to +60 °C.
What is the mechanical service life of this circuit breaker?
The mechanical service life of the main contacts is typically 100,000 switching cycles.
Does this circuit breaker offer short circuit protection?
Yes, it includes a magnetic short-circuit trip feature for protection against short circuits.
Can this circuit breaker be mounted on a DIN rail?
Yes, it is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.
What type of terminals does this circuit breaker have for the main current circuit?
It has screw-type terminals for the main current circuit.
Is there a need for spacing when installing multiple units side by side?
No additional spacing is required for side-by-side mounting, but certain clearances are recommended for grounded and live parts at different voltages.
What is the protection class of the front face of this circuit breaker?
The front face of the circuit breaker has an IP20 protection class rating.
Does this circuit breaker have a trip indicator?
No, this model does not include a trip indicator.
What is the frequency of operation at AC-3 according to IEC 60947-6-2?
The frequency of operation at AC-3 according to IEC 60947-6-2 is a maximum of 15 operations per hour.
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