Siemens 3VA1463-4EE32-0AA0 3VA14 Series Molded Case Circuit Breaker 630A 3P 36kA
The Siemens 3VA1463-4EE32-0AA0 is a robust 3-pole molded case circuit breaker from the 3VA14 series, designed for demanding industrial applications. This unit boasts a high breaking capacity of 36kA, ensuring reliable protection against short circuits, and operates at a rated current of 630A. Its advanced thermal-
Product Specifications
| Feature | Specification |
| :---------------------- | :--------------------------------- |
| Product Type | Molded Case Circuit Breaker |
| Series | 3VA14 |
| Model Number | 3VA1463-4EE32-0AA0 |
| Rated Current (Ie) | 630 A |
| Number of Poles | 3 |
| Breaking Capacity (Icu) | 36 kA |
| Rated Voltage (Ue) | Up to 690 V AC |
| Release Type | Thermal-magnetic (ETU) |
| Trip Unit | Electronic Trip Unit (ETU) |
| Mounting Type | Fixed |
| Standards Compliance | IEC 60947-2, UL 489, CSA C22.2 No. 5 |
| Degree of Protection | IP20 (terminals), IP40 (enclosure) |
Core Features & Market Positioning
The Siemens 3VA1463-4EE32-0AA0 distinguishes itself through its exceptional thermal-magnetic release technology, offering highly accurate and adjustable overcurrent protection essential for industrial power distribution. This breaker is engineered for reliability in harsh environments, a critical factor in its market positioning for heavy-duty applications where equipment failure is not an option. Its robust construction ensures a long service life and consistent performance, differentiating it from less durable alternatives. The 3VA14 series is recognized for its comprehensive protection functions and user-friendly interface, making it a preferred choice for system integrators and maintenance professionals.
Key Application Scenarios
This 3-pole molded case circuit breaker is ideally suited for main power distribution in industrial facilities, including manufacturing plants, process industries, and data centers. It serves as a critical protective device for large motor loads, transformers, and cable feeders, preventing damage from overloads and short circuits. The 36kA breaking capacity is particularly valuable in systems with high fault current potential, such as those found in substations or near utility connections. Its fixed mounting design and versatile accessory options facilitate integration into custom electrical switchgear and control panels across various sectors.
Practical System Integration Guidance
Integrating the Siemens 3VA1463-4EE32-0AA0 into existing electrical systems is streamlined due to its standardized design and comprehensive accessory portfolio. Proper wiring involves connecting the main power conductors to the line and load terminals, ensuring correct phase rotation. The thermal-magnetic trip unit, while pre-set, offers adjustable settings for overload (Ir) and short-circuit instantaneous (Im) protection, allowing fine-tuning to specific system requirements. For optimal safety, always ensure the breaker is de-energized before making any connections and adhere to local electrical codes and Siemens installation guidelines.
Operation and Risk Mitigation
Operating the Siemens 3VA1463-4EE32-0AA0 involves straightforward manual or remote tripping mechanisms, alongside its automatic protection functions. Key to risk mitigation is understanding its trip characteristics; the thermal element provides overload protection by responding to sustained overcurrents, while the magnetic element offers instantaneous protection against severe short circuits. Regular visual inspections and periodic testing, in accordance with manufacturer recommendations and industry standards, are crucial to ensure reliable operation and prevent potential electrical hazards.
Scalability & Long-Term Value
The 3VA14 series, including the 3VA1463-4EE32-0AA0, is designed with scalability in mind, offering compatibility with Siemens' broader range of industrial automation and power distribution solutions. Its modular design allows for the addition of various accessories, such as auxiliary contacts, alarm switches, and communication modules, enabling integration with digital monitoring systems and the Industrial Internet of Things (IIoT). This forward-thinking approach ensures that the circuit breaker remains a valuable component within evolving electrical infrastructure, supporting upgrades and enhanced control capabilities over its extended operational lifespan.
Frequently Asked Questions (FAQs)
What is the rated current of the Siemens 3VA1463-4EE32-0AA0?
The Siemens 3VA1463-4EE32-0AA0 molded case circuit breaker has a rated current of 630 Amperes. This signifies the maximum continuous current it can safely handle under normal operating conditions without tripping. It is crucial to match this rating to the continuous load requirements of the protected circuit to ensure effective protection.
This high current rating makes it suitable for main feeder applications and protection of substantial electrical loads in industrial settings. The breaker's robust design ensures reliable performance even at its maximum current capacity, contributing to system stability.
Choosing the correct rated current is paramount for preventing nuisance tripping or, more critically, equipment damage and fire hazards due to undersized protection. Always consult system load calculations and relevant electrical codes.
What is the breaking capacity of this circuit breaker?
This specific model, the 3VA1463-4EE32-0AA0, features a breaking capacity of 36 kiloamperes (kA). This is a critical safety parameter indicating the maximum fault current the breaker can safely interrupt without sustaining damage. It's vital for systems where high short-circuit currents are anticipated.
A higher breaking capacity ensures that the circuit breaker can effectively and safely isolate a circuit during a severe short circuit event. This prevents catastrophic damage to the breaker itself and limits the impact of the fault on the overall electrical system.
When specifying circuit breakers, always consider the prospective fault current at the point of installation. This 36kA rating provides substantial protection for many industrial and commercial power distribution applications.
What type of trip unit does the 3VA1463-4EE32-0AA0 use?
The Siemens 3VA1463-4EE32-0AA0 is equipped with an electronic trip unit (ETU). This advanced technology offers precise and adjustable protection against overloads and short circuits, surpassing the capabilities of basic thermal-magnetic trip units. The ETU allows for customization of protection settings.
Electronic trip units provide enhanced functionality, including adjustable long-time delay (Ir) for overload protection and instantaneous trip settings (Im) for short circuits. Some ETUs also offer ground-fault protection and communication capabilities, enhancing system monitoring and control.
The ETU in this breaker enables engineers to fine-tune protection parameters to precisely match the characteristics of the protected equipment and cable. This optimization minimizes nuisance tripping while ensuring maximum protection against electrical faults.
