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12V Voltage Stabilizer – DC-DC 8–40V Input, 20A 240W

Article no.: 02-02-21

GTIN:4262375690064

Up to 96% efficiency
Dustproof & waterproof
Compact design
100% full-load tested
Extensive protection features
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€44,99 EUR

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€44,99 EUR
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5+ units

€44,99 EUR
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€44,99 EUR
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30+ units

€44,99 EUR
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€42,74
€44,99 EUR
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30+ units

€41,39
€44,99 EUR

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  • Product Description

  • 3D model

  • Technical specifications

  • Downloads

  • Buck-boost regulation|The circuit can step up or step down the input voltage and keeps the output stable even with a fluctuating supply.
  • Efficient switching technology|With an efficiency of 96%, the converter operates with low losses and supports reliable operation with minimal heat generation.
  • Robust design|Potting electronics for permanent installation in vehicles, boats, camping and industrial applications
  • Protection & Quality|Protection against short circuit, overload, overtemperature and undervoltage. In addition, the series is subjected to a 100% full-load burn-in test.
Warnings and incompatibility
Not suitable for charging USB devices or batteries
Do not connect multiple devices in series or in parallel.
Factor in increased startup load for motors and pumps
Do not operate devices at their performance limit permanently.
Model: SPW-8-40V1220 (02-02-21)
Ripple: 250mV
Max. rated power: 240 W
Max. rated current: 20 A
Typical efficiency: 96% @ 12V in
Input voltage range: 8 V / 40 V
Operating temperature: -40°C - 50°C
Water resistance: IP68
Overload protection: Ja
Overheating protection: Nein
Overvoltage protection: Ja
Short-circuit protection: Ja
Rated voltage: 12/24 V
Idle current: 54 mA
Galvacinally isolated: Nein
Dimensions: 74 x 74 x 32 mm
Weight: 290 g
Cooling: Luft
Manufactured to: ISO 9001:2015
CE compliance:
EMV 2014/30/EU
RoHS 2011/65/EU

Product Description

  • Buck-boost regulation|The circuit can step up or step down the input voltage and keeps the output stable even with a fluctuating supply.
  • Efficient switching technology|With an efficiency of 96%, the converter operates with low losses and supports reliable operation with minimal heat generation.
  • Robust design|Potting electronics for permanent installation in vehicles, boats, camping and industrial applications
  • Protection & Quality|Protection against short circuit, overload, overtemperature and undervoltage. In addition, the series is subjected to a 100% full-load burn-in test.
Warnings and incompatibility
Not suitable for charging USB devices or batteries
Do not connect multiple devices in series or in parallel.
Factor in increased startup load for motors and pumps
Do not operate devices at their performance limit permanently.

3D Model

Technical Data

Model: SPW-8-40V1220 (02-02-21)
Ripple: 250mV
Max. rated power: 240 W
Max. rated current: 20 A
Typical efficiency: 96% @ 12V in
Input voltage range: 8 V / 40 V
Operating temperature: -40°C - 50°C
Water resistance: IP68
Overload protection: Ja
Overheating protection: Nein
Overvoltage protection: Ja
Short-circuit protection: Ja
Rated voltage: 12/24 V
Idle current: 54 mA
Galvacinally isolated: Nein
Dimensions: 74 x 74 x 32 mm
Weight: 290 g
Cooling: Luft
Manufactured to: ISO 9001:2015
CE compliance:
EMV 2014/30/EU
RoHS 2011/65/EU

Downloads

Note on customer reviews

Customer reviews may have been submitted via our online shop as well as through external sales platforms. For this purpose, we use Judge.me Reviews.

Frequently asked questions

Can I connect a DC/DC converter directly to a solar panel?

Our DC/DC converters do not have MPPT control. With a direct connection,
the optimal operating point of the solar module is therefore not tracked automatically.

Important: The DC/DC converter must not be connected between the solar module and the MPPT controller.

For stable and efficient operation, we recommend a suitable solar or MPPT controller or power supply via a battery with an upstream solar controller.

Why must the entire input voltage range be considered?

The input voltage must not at any time exceed the permissible range of the converter. Therefore, take into account not only the nominal voltage, but also voltage peaks, charging voltages, and potential open-circuit voltages.

For solar modules, the maximum open-circuit voltage at low temperatures is particularly critical.

Which DC/DC voltage converter do I need?

For the selection, we require:

  • the full input voltage range,
  • the desired output voltage,
  • the maximum current or power requirement,
  • information on whether galvanic isolation is required,
  • a brief description of the application.

Please send this information along with the desired quantity to info@bauer-united.com. We will be happy to assist you with your selection.

How must a voltage converter be fused?

The positive lead should be fused as close as possible to the power source or the vehicle's electrical system tap. The fuse and cable cross-section must be appropriate for the maximum input power, cable length, and installation.

If you are uncertain, please send us the item number along with details regarding input and output voltage, power, and cable length.

What should I do if a product does not work?

First, disconnect the product from the power supply and do not use it again until the issue has been
resolved. Please then send us:

  • order number and source of purchase,
  • item number,
  • a detailed description of the fault,
  • information on the input and output voltage,
  • if possible, photos and measurement results.

After inspection, we will inform you about the next steps, such as an exchange or
refund.

What should I do in the event of overheating, smoke development, or damage?

First, disconnect the product from the power supply and do not continue using it until the issue has been
resolved. Please then send us:

  • order number and source of purchase,
  • item number,
  • a precise description of the defect,
  • details regarding input and output voltage,
  • if possible, photos and measurement results.

After inspection, we will inform you about the next steps, for example, replacement or
refund.

Can I cancel an order?

Please contact us as soon as possible, providing your order number. As long as the order has not yet been shipped or fully processed, we will check whether a direct cancellation is possible.

If the goods are already in transit, please coordinate the return with us in advance.

What should I do if an item is incorrect, missing, or damaged?

Please send us your order number along with photos of the received product, the packaging, and the shipping label. We will review the case and, depending on the situation, organize a replacement shipment, an exchange, or a refund.

Do you offer quotes and volume discounts for business customers?

Yes. For business customers, we create individual quotes and offer tiered pricing based on quantity. Please send us:

  • Item number and quantity,
  • Billing and shipping address,
  • Desired delivery date,
  • VAT identification number,
  • If applicable, a requested delivery schedule.

Sample orders and staggered serial deliveries are also possible upon request.

Do you also deliver to other EU countries?

Deliveries to numerous EU countries are possible, even if the desired country cannot be selected directly in the online shop.

Please send us the delivery address, billing address, items, and quantity. Business customers should also provide their VAT identification number. You will then receive a quote including shipping costs and delivery time.

Can an EU business customer order be processed without German VAT?

A VAT-exempt intra-Community delivery may be possible if the legal requirements are met and a valid VAT identification number is provided.

Please submit your VAT ID along with your full company and delivery address prior to invoicing.

What payment methods are available?

The available payment methods are displayed in the online shop. For individual quotes, larger orders, and international deliveries, payment is often made in advance based on a pro forma invoice.

The specific payment terms are stated in the respective offer.

Will I receive an invoice and tracking information?

The invoice is usually provided digitally. After dispatch, you will receive a tracking number for package tracking, if available.

If you require a purchase order reference, cost center, or specific billing information, please provide this to us before the invoice is issued, if possible.