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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV1421-1BA10 |
| Alternative Part Number | 3RV14211BA10 |
| Manufacturer | Siemens |
| Actuator Type | Knob |
| Rated Voltage | 690 V |
| Rated Current | 2 A |
| Dimensions | 45 x 91 x 97 mm |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard rail |
| Operating Temperature Range | -20 ... +60 °C (operating), -50 ... +80 °C (storage) |
| Mechanical Operating Cycles | 100,000 (typical for main contacts) |
| Frequency of Operation | Maximum 1/h with AC-3 |
| Trip Class | CLASS 10 |
| Adjustable Response Current | 1.4 … 2 A |
| Terminal Type | Screw-type terminals for main and auxiliary circuits |
| Conductor Connection Type | Solid, finely stranded, with conductor end processing |
| Conductor Cross-Section Range | 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²) for main contacts |
| AWG Conductor Range | 2x (14 ... 10) for main contacts |
| Protection Class | IP20 front side |
| Installation Altitude | Up to 2,000 m above sea level |
| Resistance to Shock | 25g / 11 ms |
| Power Loss | 6 W total typical |
| Breaking Capacity | Standard |
| Environmental Confirmation | Various certifications and approvals |
The Siemens 3RV1421-1BA10 is a robust circuit breaker designed with a knob actuator, offering reliable protection for electrical circuits. Engineered to handle a voltage of up to 690 V and a current rating of 2 A, this circuit breaker is an essential component for safeguarding electrical systems from overload and short-circuit conditions. Its compact dimensions of 45 x 91 x 97 mm make it suitable for space-constrained applications, while the screw connection facilitates straightforward installation.
This circuit breaker is part of the SIRIUS product family, known for its high-quality industrial control products. It features a three-pole design for main current circuit control and includes phase disturbance recognition, enhancing the safety of the system it is integrated into. The device is classified under trip class 10, ensuring quick response to overcurrents, thereby providing transformer protection and minimizing the risk of damage to connected equipment.
The 3RV1421-1BA10 is designed with user safety in mind, boasting a finger-safe protection class of IP20 on the front, reducing the risk of accidental contact. Its mechanical operating cycles are rated for a typical 100,000 operations, indicating a durable and long-lasting performance in various industrial settings.
With its combination of reliability, safety features, and ease of use, the Siemens 3RV1421-1BA10 circuit breaker is a valuable asset for maintaining the integrity and efficiency of electrical systems in a wide range of industrial applications.
Commonly Asked Questions
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Frequently Asked Questions
What is the voltage rating for this circuit breaker?
The circuit breaker is rated for a voltage of up to 690 V.
Can this circuit breaker be used for transformer protection?
Yes, this circuit breaker is suitable for transformer protection applications.
What is the current rating for this device?
The device has an operating current rating of 2 A at AC-3 at 400 V.
What is the trip class of this circuit breaker?
The circuit breaker has a trip class of CLASS 10.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 45 x 91 x 97 mm.
Is there an auxiliary switch available for this circuit breaker?
Yes, an auxiliary switch is available as a product extension for this circuit breaker.
What is the mechanical operating cycle of the main contacts?
The main contacts have a typical mechanical operating cycle of 100,000 operations.
What type of connections does this circuit breaker support?
The circuit breaker supports screw-type terminals for the main current circuit.
What is the impulse voltage resistance of this circuit breaker?
The impulse voltage resistance rated value is 6,000 V.
Can this circuit breaker be mounted on a DIN rail?
Yes, it can be mounted by screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
What is the protection class of the front side of this circuit breaker?
The front side of the circuit breaker is rated at IP20 for protection.
What is the ambient operating temperature range for this circuit breaker?
The ambient operating temperature range is from -20 °C to +60 °C.
What is the resistance against shock for this circuit breaker?
The circuit breaker has a resistance against shock of 25g / 11 ms.
What is the maximum installation altitude for this circuit breaker?
The maximum installation altitude for the circuit breaker is 2,000 meters above sea level.
Part conditions explained
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