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Noctua NA-VC1 - 24V to 12V

Noctua NA-VC1 - 24V to 12V

The Noctua NA-VC1 is a premium grade 24V DC to 12V DC step-down voltage converter that allows runn...

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Na-Vc1, 24V To 12V Step-Down Voltage Converter (Buck Converter) For Running 12V Pc Fans In 24V Applications (3D Printers 9010018201390

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OnBuy.comNa-Vc1, 24V To 12V Step-Down Voltage Converter (Buck Converter) For Running 12V Pc Fans In 24V Applications (3D Printers 9010018201390
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Product Information

Full details

The Noctua NA-VC1 is a premium 24V DC to 12V DC voltage converter designed for users needing to run standard 12V fans in 24V systems like 3D printers, industrial equipment, or automotive setups. Its primary benefit is enabling the use of a wide range of high-quality 12V fans where only 24V is available, offering quiet and efficient cooling. A key consideration is its 9W maximum output, which may limit the number of fans that can be powered simultaneously without additional accessories.

All features

Model Part NumberNA-VC1
BrandNoctua

Extended Product Information

FAQs

Can I use the NA-VC1 with 3-pin fans?

Yes, the NA-VC1 is compatible with both 4-pin PWM and 3-pin fans. For 3-pin fans, only voltage-based speed control will be available, and RPM monitoring may not function.

What is the maximum number of fans I can connect?

The NA-VC1 supports a total output power of 9W. You can connect multiple fans as long as their combined power consumption does not exceed this limit. For example, a typical 120mm fan might draw 1.5W, allowing you to connect up to six such fans. Always check the power rating of your specific fans. For more than two fans, consider using optional NA-SYC1 splitter cables or the NA-FH1 fan hub.

How does the voltage-based speed control work?

When the input voltage is less than 24V (e.g., if your 24V source fluctuates or is intentionally lowered), the NA-VC1 scales the output voltage proportionally. For instance, if the input is 12V, the output will be approximately 7.5V, resulting in a slower fan speed for compatible fans.

Is the NA-VC1 safe to use in sensitive equipment?

Yes, the NA-VC1 features advanced protection circuits including short-circuit, reverse polarity, overcurrent, and overheating protection. It also holds CE, UKCA, and UL certifications, indicating compliance with stringent safety and EMC standards.

Can I connect the NA-VC1 to a 12V power supply to run 5V fans?

No, the NA-VC1 is designed specifically to step down 24V DC to 12V DC. It cannot be used to step down voltage further or to convert from 12V to 5V.

What is the operating temperature range?

The NA-VC1 can operate within a temperature range of -20°C to 60°C.

Do I need any software to use the NA-VC1?

No, the NA-VC1 is a hardware device and does not require any software. Its functionality is based on direct electrical conversion and signal passthrough.

Troubleshooting

Fan does not spin or spins at very low speed.

Verify the input voltage is 24V DC. Check that the fan is correctly connected to the output and that the combined power draw does not exceed the 9W limit. Ensure the fan itself is functional by testing it directly with a 12V source.

Device shuts down unexpectedly.

The NA-VC1 has protection against short-circuits, overcurrent, and overheating. Disconnect the power, check all connections for shorts or incorrect wiring, and ensure the connected fans are within the 9W total power limit. Allow the device to cool for at least one minute before reconnecting power.

PWM speed control is not working for a 4-pin fan.

Confirm that the fan is indeed a 4-pin PWM fan and that it is connected to the NA-VC1's output correctly, ensuring the PWM signal pin is aligned. Check that the PWM signal is being sent from your motherboard or controller. Verify the NA-VC1 itself is receiving a valid PWM signal.

RPM monitoring is inaccurate or not reporting.

Ensure the fan is a 4-pin fan and that the RPM signal wire is correctly connected through the NA-VC1. Check the fan's specifications for its RPM range. Some very low fan speeds may be difficult to read accurately.

Pros and Cons

Pros

  • Enables the use of superior 12V fans in 24V systems.
  • Extremely small and lightweight for easy installation.
  • Supports both PWM and voltage-based speed control for 4-pin fans.
  • Robust protection features enhance reliability and safety.
  • High-quality build and certifications from a reputable brand.
  • Passes through RPM signals for fan monitoring.

Cons

  • Limited to a total output of 9W, potentially restricting the number of fans.
  • Requires optional accessories (splitters, hubs) for multi-fan setups.
  • May not be suitable for very high-power 12V fans without careful consideration of the 9W limit.

Setup, Compatibility & Care

Setup: The NA-VC1 is designed for simple plug-and-play integration. Connect the 24V power source to the input side of the converter and connect your 12V fan(s) to the output side. For 4-pin PWM fans, ensure the PWM signal pins are correctly aligned. If using multiple fans, connect them via optional Noctua NA-SYC1 splitter cables or the NA-FH1 fan hub to the output of the NA-VC1. For PWM control of multiple fans, consider pairing with the NA-FC1 fan controller.

Compatibility: The NA-VC1 is compatible with 24V DC input power sources. It supports both 4-pin PWM and 3-pin fans. The total output power is rated at 9W; ensure the combined power draw of your connected 12V fans does not exceed this limit.

Care: Due to its solid-state design and integrated protections, the NA-VC1 requires minimal care. Keep the device clean and free from dust, particularly ensuring ventilation is not obstructed. Avoid exposing it to liquids or excessive moisture. In case of overheating or overcurrent, the device will automatically shut down. To reset, disconnect it from the power source for approximately one minute until it cools down to a safe operating temperature (below 60°C).

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