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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV1321-4BC10 |
| Alternative Part Number | 3RV13214BC10 |
| Manufacturer | Siemens |
| Type | Molded Case Circuit Breaker |
| Operating Mechanism | Knob |
| Rated Operating Voltage | 690 V ac |
| Rated Short-Circuit Breaking Capacity | 100 kA |
| Rated Current | 20 A |
| Trip Type | Magnetic |
| Connection Type | Screw |
| Mounting | Snap-On Mount onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions | 45 x 96 x 97 mm |
| Number of Poles | 3 |
| Frequency of Operation | Maximum 1/h with AC-3 |
| Service Power at AC-3, 400 V | 7.5 kW |
| Ambient Operating Temperature | -20 … +60 °C |
| Installation Altitude | Maximum 2,000 m above sea level |
| Resistance to Shock | 25g / 11 ms |
| Protection Class | IP20 |
| Compliance | Finger-safe design |
| Commodity Code | 853620 |
The Siemens 3RV1321-4BC10 is a robust molded case circuit breaker designed for industrial applications requiring reliable protection and control. This circuit breaker is part of the SIRIUS product family, known for its high-quality standards and engineering excellence. With a compact size of S0, it is suitable for space-saving installations and can be easily integrated into a variety of control systems.
This three-pole device is engineered to handle operating voltages up to 690 V ac and has a high breaking capacity of 100 kA, ensuring dependable protection against overcurrents and short circuits. The rated operational current of 20 A, combined with a service power of 7.5 kW at 400 V, makes it suitable for a wide range of applications.
The circuit breaker features a magnetic trip mechanism, which provides quick and accurate response to fault conditions, enhancing the safety and longevity of electrical systems. The screw-type terminals ensure a secure and durable connection, while the snap-on mount design allows for quick and easy installation onto a standard 35 mm DIN rail.
With an operating temperature range of -20 to +60 degrees Celsius and a shock resistance of 25g / 11 ms, the Siemens 3RV1321-4BC10 is built to withstand harsh industrial environments. Its finger-safe design and IP20 protection rating on the front panel provide additional safety during operation and maintenance.
This circuit breaker does not include overload protection, phase disturbance recognition, or an undervoltage release mechanism, allowing for a more streamlined and focused performance in applications where these features are managed separately.
Overall, the Siemens 3RV1321-4BC10 circuit breaker is a reliable and efficient solution for protecting electrical circuits in industrial settings, offering both performance and durability.
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Frequently Asked Questions
What type of circuit breaker is this?
This is a molded case circuit breaker designed for starter protection with a standard breaking capacity.
Can this circuit breaker be used with different types of voltage?
Yes, it is suitable for use with AC/DC operating voltage up to a rated value of 690 V.
What is the rated operational current for this circuit breaker?
The rated operational current at AC-3 at 400 V is 20 A.
What are the dimensions of this circuit breaker?
The dimensions are 45 mm in width, 96 mm in depth, and 97 mm in height.
How is this circuit breaker mounted?
It can be mounted using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
What is the short-circuit breaking capacity of this device?
The breaking capacity limit short-circuit current (lcu) at 400 V is rated at 50 kA.
Is the circuit breaker finger-safe?
Yes, it is designed to be finger-safe, providing protection against electrical shock.
What is the ambient temperature range for operating this circuit breaker?
The circuit breaker can operate within an ambient temperature range of -20 °C to +60 °C.
Does this circuit breaker have an auxiliary switch?
Yes, the circuit breaker does have the option for an auxiliary switch.
What is the mechanical operating life of the main contacts?
The main contacts have a typical mechanical operating life of 100,000 cycles.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
