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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3VA9157-0HA20 |
| Alternative Part Number | 3VA91570HA20 |
| Part Manufacturer | Siemens |
| Product Brand Name | SENTRON |
| Product Designation | Accessories |
| Product Version | Motorized Operating Mechanism (MO) |
| Rated Control Supply Voltage Us with DC | 110 V |
| Height | 70 mm |
| Width | 76.2 mm |
| Depth | 103 mm |
| Net Weight | 578 g |
| Connectable Conductor Cross-section / Solid / Minimum | 1.5 mm² |
| Connectable Conductor Cross-section / Solid / Maximum | 2.5 mm² |
| Connectable Conductor Cross-section / Finely Stranded / With Core End Processing / Minimum | 1.5 mm² |
| Connectable Conductor Cross-section / Finely Stranded / With Core End Processing / Maximum | 2.5 mm² |
| Operating Frequency / Maximum | 1/h 120 |
| Break Time / Typical | 0.8 s |
| Make Time / Typical | 0.8 s |
| Product Function / Bus Communication | No |
| Ambient Temperature / During Operation / Minimum | -25 °C |
| Ambient Temperature / During Operation / Maximum | 70 °C |
The Siemens 3VA9157-0HA20 is a versatile motor operator designed to enhance the functionality of circuit breakers, specifically the 3VA1 160 series. This accessory is part of the esteemed SENTRON product family, known for its reliability and innovation in electrical protection technology.
Crafted for both AC and DC control voltage systems, the 3VA9157-0HA20 motor operator is compatible with a range of supply voltages, from 110V up to 230V at 50 Hz and 60 Hz for AC, and a rated control supply voltage of 110V for DC applications. This flexibility ensures that the motor operator can be integrated into various electrical setups with ease.
The compact design, with dimensions of 70 mm in height, 76.2 mm in width, and 103 mm in depth, allows for efficient use of space within electrical installations. Despite its small size, it packs a substantial operational capability, with a net weight of 578 g and a rated operational power of 250 V·A.
The 3VA9157-0HA20 is engineered to perform in a wide range of environmental conditions, with an operational temperature range from -25 °C to 70 °C, ensuring consistent performance even in extreme conditions. The mechanical design also allows for a variety of conductor cross-sections to be connected, from a minimum of 1.5 mm² to a maximum of 2.5 mm², providing versatility in wiring options.
This motor operator is not just about robust performance; it also adheres to stringent EMC standards, ensuring that it does not interfere with other electronic equipment. With a typical break and make time of 0.8 seconds and an operating frequency of up to 120 operations per hour, the 3VA9157-0HA20 is built for both speed and endurance.
The Siemens 3VA9157-0HA20 motor operator is a testament to Siemens' commitment to quality, offering a reliable and efficient solution for automating circuit breaker operations in commercial and industrial electrical systems.
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Frequently Asked Questions
What type of accessory is this and what is its primary use?
This is a motorized operating mechanism accessory, primarily used for remote operation of circuit breakers, enabling automated control within electrical distribution systems.
Can this accessory be used with any circuit breaker?
No, it is specifically designed for compatibility with the 3VA1 160 series of circuit breakers.
What are the voltage specifications for this motorized operating mechanism?
The motorized operating mechanism operates at a control supply voltage of 110-230V AC or 110-250V DC.
What are the dimensions and weight of this accessory?
The accessory has a height of 70 mm, a width of 76.2 mm, a depth of 103 mm, and a net weight of 578 g.
Is there a bus communication function available with this accessory?
No, this motorized operating mechanism does not have a bus communication function.
What is the typical break time and operating frequency of this device?
The typical break time is 0.8 seconds, and the maximum operating frequency is 120 operations per hour.
What is the range of ambient operating temperatures for this accessory?
The accessory can operate within an ambient temperature range of -25°C to 70°C.
What is the connectable conductor cross-section for this accessory?
The connectable conductor cross-section ranges from 1.5 mm² to 2.5 mm², both for solid and finely stranded conductors with core end processing.
Are there any certifications or approvals associated with this accessory?
Yes, the accessory comes with general product approvals and EMC declarations of conformity, as well as type test certificates.
How can I find more detailed technical information about this accessory?
For more detailed technical information, you can refer to the manufacturer's service and support documentation, which provides comprehensive details on the accessory's specifications and usage.
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.
