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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RV2431-4UA10 |
| Alternative Part Number | 3RV24314UA10 |
| Manufacturer | Siemens |
| Product Type | Circuit Breaker |
| Design | For Transformer Protection |
| Size | S2 |
| Product Extension | Auxiliary Switch Available |
| Power Loss | Total Typical: 15 W |
| Insulation Voltage | Rated Value: 690 V |
| Surge Voltage Resistance | Rated Value: 6 kV |
| Protection Class | IP20 |
| Installation Altitude | Maximum: 2000 m above sea level |
| Temperature Compensation | -20 ... +60 °C |
| Relative Humidity | 10 ... 95% during operation |
| Main Circuit Poles | 3 |
| Adjustable Current Response Value | 32 ... 40 A |
| Operating Voltage | Rated Value: 690 V |
| Operating Frequency | Rated Value: 50 ... 60 Hz |
| Operational Current | Rated Value: 40 A |
| Operating Power at AC-3 | 230 V: 11 kW, 400 V: 18.5 kW, 500 V: 22 kW, 690 V: 37 kW |
| Operating Frequency at AC-3 | Maximum: 15 1/h |
| Auxiliary Contacts | NC Contacts: 0, NO Contacts: 0 |
| Phase Failure Detection | Yes, with CLASS 10 |
| Overload Release Design | Thermal |
| Short-Circuit Current Breaking | Ics at 240 V: 100 kA, at 400 V: 30 kA, at 500 V: 5 kA, at 690 V: 2 kA |
| Maximum Short-Circuit Breaking | Icu at 240 V: 100 kA, at 400 V: 65 kA, at 500 V: 10 kA, at 690 V: 4 kA |
| Instantaneous Short-Circuit Trip | Response Value Current: 820 A |
| UL/CSA Full-Load Current | For 3-phase AC motor at 480 V and 600 V: 40 A |
| Mechanical Performance | Single-phase AC motor at 110/120 V: 3 hp, at 230 V: 7.5 hp; 3-phase AC motor at 460/480 V: 30 hp, at 575/600 V: 40 hp |
| Short-Circuit Protection | Yes, with magnetic design |
| Mounting Position | Any |
| Fastening Method | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 60715 |
| Dimensions | Height: 140 mm, Width: 55 mm, Depth: 149 mm |
The Siemens 3RV2431-4UA10 is a robust circuit breaker designed for transformer protection, ensuring the safe and efficient operation of electrical systems. This component, part of the SIRIUS product line, is engineered to provide reliable protection and control within industrial applications. With a size S2 frame, it is suitable for a variety of setups and can be easily integrated with company-specific S2 size contactors.
This circuit breaker features an adjustable current response value for the current-dependent overload release, ranging from 32 to 40 A, and an N-release setting of 820 A. It is equipped with screw terminals for secure and straightforward connections, and it boasts a standard switching capacity that meets the demands of most industrial environments.
The 3RV2431-4UA10 is designed with safety in mind, offering an insulation voltage rated at 690 V and a surge voltage resistance of 6 kV. It is also capable of withstanding mechanical shocks, as evidenced by its compliance with IEC 60068-2-27 standards. The mechanical service life of the main contacts is typically around 50,000 switching cycles, indicating a durable and long-lasting design.
For operational conditions, this circuit breaker can be installed at altitudes up to 2,000 meters above sea level and offers temperature compensation from -20 to +60 °C, making it versatile for various climatic conditions. The product also features a CLASS 10 trip class and thermal design for the overload release, ensuring prompt response to any overload conditions.
The 3RV2431-4UA10 is a testament to Siemens' commitment to quality and reliability in circuit protection technology, providing a dependable solution for safeguarding electrical transformers and the systems they serve.
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Frequently Asked Questions
What is the purpose of this circuit breaker?
This circuit breaker is designed for transformer protection, ensuring safe operation by preventing damage due to overload or short circuits.
Can this circuit breaker be used with a contactor?
Yes, it is designed to be compatible with size S2 contactors, allowing for a seamless integration in electrical circuits.
What is the adjustable current range for the overload release?
The adjustable current range for the overload release of the 3RV2431-4UA10 is between 32 to 40 amperes.
What are the installation requirements for this circuit breaker?
The circuit breaker can be mounted in any position and can be fastened using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 60715.
What is the maximum operating voltage for this device?
The maximum operating voltage for this circuit breaker is rated at 690 volts.
What type of terminal connections does this circuit breaker have?
It features screw-type terminals for the main current circuit, providing a secure and reliable connection.
What is the mechanical service life of the main contacts?
The main contacts of the circuit breaker have a typical mechanical service life of 50,000 switching cycles.
Does this circuit breaker provide short circuit protection?
Yes, it includes a magnetic short-circuit trip function to protect against short circuits.
What is the temperature range for operating this circuit breaker?
The circuit breaker is designed to operate within a temperature range of -20 to +60 degrees Celsius.
Is there a need for additional spacing around the circuit breaker when installed?
Yes, to ensure proper functioning and safety, there should be a clearance of 50 mm downwards and upwards, and 10 mm at the side for grounded parts at 400 volts.
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