AC/DC Power Supply – 230V -> 12V
230V 12V AC/DC power supply — rectified DC output, unfiltered. Single-phase transformer + diode bridge on integrated heat sink.
⚠ No-load voltage ≈ 17–18 VDC, drops to 12 V at rated load. Range 100 VA to 1,000 VA, IP00 / IP23 / IP54. Made in France, 1-year warranty.
| Protection rating | IP00, IP21, IP23, IP54 |
|---|---|
| Input voltage(s) | 230 VAC |
| Output voltage(s) | 12 VDC |
| Type of outputs | Bornes à vis (IP00/IP23) · Câble H07RNF (IP54) |
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AC/DC Power Supply — Made in France
230V to 12V power supply: rectified transformer, robust and long-lasting
The 230V 12V power supply by ABL Transfo converts the 230 VAC mains supply to 12 VDC direct current. Built around a low-frequency transformer and a diode bridge mounted on a heat sink, it provides superior surge resistance and longevity compared to switching power supplies. Available in IP00, IP23 or IP54 depending on your environment.
100→1000
VA available
12 VDC
at rated load
1 year
manufacturer warranty
🇫🇷
made in France
How does this 230V 12V power supply work?
1
Transformation
The single-phase transformer steps down 230 VAC to low-voltage AC.
2
Rectification
The diode bridge, fixed on the heat sink bolted to the transformer, converts AC to pulsed DC.
3
Output under load
The output voltage depends on the current drawn — 12 VDC at rated power.
⚠ Key point: no-load voltage vs loaded voltage
- No load (unloaded): voltage ≈ 17–18 VDC — normal behaviour for an unfiltered rectified supply.
- At rated load: voltage drops to 12 VDC when the device draws the rated power of the supply.
- At partial load: if you connect 100 W to a 600 VA supply, the voltage will exceed 12 V. Choose a power rating that matches your actual consumption.
230V to 12V range — Part numbers
Select the power rating matching your load + 20% margin. For inductive loads (motors), allow at least 30% margin.
| Part no. | Power | Max current | Input | Output | Dimensions (mm) |
|---|---|---|---|---|---|
| AR1208 | 100 VA | 8 A | 230 VAC | 12 VDC | 130 × 80 × 75 |
| AR1216 | 200 VA | 16 A | 230 VAC | 12 VDC | — |
| AR1225 | 300 VA | 25 A | 230 VAC | 12 VDC | 165 × 93 × 95 |
| AR1233 | 400 VA | 33 A | 230 VAC | 12 VDC | 175 × 103 × 130 |
| AR1250 | 600 VA | 50 A | 230 VAC | 12 VDC | 175 × 103 × 130 |
| AR1262 | 750 VA | 62 A | 230 VAC | 12 VDC | — |
| AR1284 | 1,000 VA | 84 A | 230 VAC | 12 VDC | 400 × 300 × 200 |
Power ratings above 1,000 VA available on request. Contact us.
Three protection ratings — IP00, IP23, IP54
Open frame
Transformer + diode bridge on heat sink, no enclosure. Most compact and cost-effective. For installation inside an electrical cabinet.
Outputs: screw terminals.
→ Electrical cabinet, protected workshop
Semi-protected
Diode bridge fixed on the heat sink bolted to the transformer. Protected against water sprays up to 60°.
Outputs: screw terminals.
→ Technical room, conduit, substation
Weatherproof
Enclosure or resin-moulded housing (depending on power). Protected against dust and water spray from all directions.
Outputs: H07RNF cable.
→ Sheltered outdoor, industrial, marine
🔧 Technical specifications
| Input voltage | 230 VAC (single-phase mains) |
| Output voltage | 12 VDC at rated load (≈ 17–18 VDC no-load) |
| Available power ratings | 100 · 200 · 300 · 400 · 600 · 750 · 1,000 VA |
| Supply type | Unfiltered rectified single-phase |
| Construction | Transformer + diode bridge on heat sink |
| Thermal protection | Built-in |
| Protection ratings | IP00 / IP23 / IP54 |
| Output connections | Screw terminals (IP00 · IP23) · H07RNF cable (IP54) |
| Duty cycle | Continuous S1 |
| Warranty | 1 year |
| Compliance | CE · RoHS · Made in France |
Need a strictly constant 12 VDC?
Weatherproof 12V DC Power Supply — Always 12 VDC
Regulated switching power supply: constant 12 VDC output regardless of load. Ideal for LED lighting, signage and sensitive electronics.
View product →FAQ — 230V 12V AC/DC Power Supply
What is the difference between this 230V 12V supply and a switching power supply?
This 230V 12V power supply is low-frequency (transformer + diode bridge). It is more resistant to short overloads, generates less high-frequency interference and offers greater longevity. The trade-off is that the output voltage varies with load — it is not regulated.
Can it be used to charge a 12V battery?
Yes. The no-load voltage (17–18 VDC) is compatible with almost all 12V charge regulators and battery chargers (lead-acid, AGM). Under rated load the voltage settles at 12 VDC.
What power rating for a 300 W 12V motor?
300 W ÷ 12 V = 25 A. For inductive loads, add 20–30% margin and account for the inrush current at start-up. The 400 VA / 33 A model provides comfortable, long-lasting operation.
What output connection does the IP54 version have?
The IP54 version is supplied with H07RNF cable outputs, suited to damp environments and outdoor installations. The IP00 and IP23 versions have screw terminal outputs.
What is the delivery lead time?
Dispatch within 24 to 48 hours of payment. Full standard range held in stock.
Need more than 1,000 VA?
Our 230V 12V power supplies are available custom-built up to several kVA. Get a quote the same day.
2 reviews for AC/DC Power Supply – 230V -> 12V
AC/DC Power Supply – 230V -> 12V 
c’est pas cher compte tenue du prix du KWh
jean claude PELI
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