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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV1421-1HA10 |
| Alternative Part Number | 3RV14211HA10 |
| Manufacturer | Siemens |
| Product Type | Molded Case Circuit Breaker |
| Operating Mechanism | Knob |
| Rated Operating Voltage | 690 V ac |
| Rated Short-Circuit Breaking Capacity | 100 kA |
| Rated Operating Current | 8 A |
| Connection Type | Screw |
| Mounting Type | Screw Mount; Snap-On Mount |
| Dimensions | 45 x 96 x 97 mm |
| Number of Poles | 3 |
| Trip Class | CLASS 10 |
| Adjustable Response Current | 5.5 – 8 A (for overload protection) |
| Ambient Operating Temperature | -20 … +60 °C |
| Installation Altitude | Up to 2,000 m above sea level |
| Protection Class | IP20 |
| Insulation Voltage | Rated value 690 V |
| Impulse Voltage Resistance | Rated value 6 kV |
| Power Loss | Total typical 7 W |
| Mechanical Operating Cycles | 100,000 (for main contacts) |
| Frequency of Operation | Maximum 15 operations per hour with AC-3 |
| Commodity Code | 85362010 |
| Design | Thermomagnetic with screw-type terminals for main current circuit, suitable for any mounting position |
The Siemens 3RV1421-1HA10 is a robust molded case circuit breaker designed for industrial applications requiring reliable protection and control. This circuit breaker is engineered to safeguard against overloads and short circuits, ensuring the safety and longevity of electrical equipment. With a knob for easy operation, it is rated for use at 690 V ac and can handle a substantial interrupting capacity of 100 kA, making it suitable for a wide range of demanding environments.
The device offers a current rating of 8 A and features screw terminals for secure wire connections, as well as options for screw or snap-on mounting, providing flexibility in installation. Its compact dimensions of 45 x 96 x 97 mm allow for efficient use of space inside electrical enclosures. The circuit breaker is part of the SIRIUS product family, known for its reliability and performance in industrial settings.
With its precise trip class of CLASS 10, the Siemens 3RV1421-1HA10 circuit breaker is particularly suited for transformer protection, ensuring that transformers are safeguarded from potential damage caused by electrical faults. Its design accommodates a variety of conductor cross-sections, making it versatile for different wiring configurations.
This circuit breaker is a critical component for maintaining operational efficiency and protection in industrial electrical systems, making it an essential selection for professionals seeking a dependable circuit protection solution.
Commonly Asked Questions
Is my order covered by a warranty?
Marvo provides a full 12-month warranty on all products, whatever the condition. For your peace of mind, all parts are ‘Marvo Approved’ which means that they have been tested and checked to ensure that they are in working condition. If you are unhappy with the part(s) you received and would like to request a return, you can do so by completing our quick and easy online form. Once we have received your Returns Request, a member of the team will be in touch to discuss this further with you. You can read more about our warranty policy here.
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Read more...Is Marvo a credible parts supplier?
Marvo is a highly credible supplier of industrial automation parts and components with dedicated hubs around the world offering industry-leading products and services. Marvo is committed to providing a quick, easy and reliable place to source your automation and control components. All purchases come as standard with a comprehensive 12-month return to base warranty meaning that, in just a few clicks, you can source critical parts more seamlessly than ever before. Click here to read an article on how Marvo is redefining convenience for automation and manufacturing professionals.
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Frequently Asked Questions
What type of circuit breaker is this?
This is a molded case circuit breaker designed for transformer protection with a Class 10 trip characteristic, suitable for use in a variety of industrial applications.
Can this circuit breaker be used for motor protection?
While the primary design is for transformer protection, it may be suitable for motor protection applications within its specified current range and trip characteristics. However, it's important to consult the specific requirements of your motor to ensure compatibility.
What is the maximum operating voltage for this circuit breaker?
The maximum operating voltage for this circuit breaker is 690 V ac.
What is the short-circuit breaking capacity of this device?
The short-circuit breaking capacity of this device is rated at 100 kA at 400 V ac.
What are the dimensions of this circuit breaker?
The dimensions of the circuit breaker are 45 x 96 x 97 mm.
What type of connections does this circuit breaker support?
This circuit breaker supports screw-type terminal connections for both the main current circuit and auxiliary and control current circuits.
Is the mounting type of this circuit breaker flexible?
Yes, it offers both screw and snap-on mounting options, allowing for versatile installation onto a standard 35 mm DIN rail.
What is the frequency of operation for this circuit breaker?
The maximum frequency of operation for this circuit breaker at AC-3 is 15 operations per hour.
What is the ambient temperature range for operating this circuit breaker?
The ambient temperature range for operating this circuit breaker is from -20°C to +60°C.
Does this circuit breaker have a trip indicator?
No, this model does not come with a trip indicator.
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.
