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Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12

Quick Find Code: AT-25-220-12

Free Delivery!*
  • Safe 12V Power: For bathroom/wet room 12V extractor fans.
  • SELV Design: Ensures safety in moisture-prone areas.
  • Overload Protection: Thermal fuse prevents overheating.
  • Various Control Options: Standard, timer, humidity control.
  • Durable & Compact: Plastic casing, easy wall surface mounting.

Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12

Quick Find Code: AT-25-220-12

Free Delivery!*
  • Safe 12V Power: For bathroom/wet room 12V extractor fans.
  • SELV Design: Ensures safety in moisture-prone areas.
  • Overload Protection: Thermal fuse prevents overheating.
  • Various Control Options: Standard, timer, humidity control.
  • Durable & Compact: Plastic casing, easy wall surface mounting.

£103.43 (inc. VAT)

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Product

Fan
Speeds

IP
Rating

Extraction
Rate Ltr/Sec

Timer

Humidistat

Status

Price

Qty

Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12

Fan
Speeds

IP
Rating IP40

Extraction
Rate Ltr/Sec

Timer

Humidistat

Sold Out

£103.43

(inc. VAT)

Attribute Value

Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12

Fan
Speeds

IP
Rating IP40

Extraction
Rate Ltr/Sec

Timer

Humidistat

Sold Out

£103.43

(inc. VAT)

Attribute Value

Blauberg SELV Transformer - Surface Mounting - Timer - ATK-25-220-T

Fan
Speeds

IP
Rating IP40

Extraction
Rate Ltr/Sec

Timer Yes

Humidistat

Sold Out

£124.43

(inc. VAT)

Attribute Value

Blauberg SELV Transformer - Surface Mounting - Humidity - ATK-25-220-TH

Fan
Speeds

IP
Rating IP40

Extraction
Rate Ltr/Sec

Timer Yes

Humidistat

Sold Out

£142.28

(inc. VAT)

Attribute Value

Add To Cart

Product Overview

The ATK-25 220/12 from Blauberg is a low-voltage step-down transformer designed specifically for use with 12 V/50 Hz residential extractor fans (such as in bathrooms or wet-rooms). It converts a standard 220-250 V mains supply to a safe 12 V output, making it suitable for damp zones and installations where direct mains voltage may present extra risk.

This unit is built with safety and reliability in mind. It features SELV (Separated Extra-Low Voltage) output, overload protection by thermal fuse, and a plastic casing for durability and insulation. It is designed for indoor wall surface mounting in areas where moderate heat and humidity are present. 

In terms of specification and installation factors: the transformer is suitable for fans with a maximum motor power of up to about 16 W (25 VA) and a load current of up to about 2 A. It must be mounted with adequate air circulation around it (not above heating equipment) to prevent overheating. There are also variants with timer or humidity-sensor control depending on your ventilation setup

Downloads

Download at-25-220-12-data-sheet

Specification

Bathroom Zones1, 2
Battery BackupYes
Current Amps2 A
Frequency50 Hz
IP RatingIP40
MaterialPlastic
MountingWall, Surface
power consumption16 W
Voltage230 V
Wattage16 W
Weight0.8 kg

We always aim to dispatch your order for delivery on the next working day. Simply place your order before the same-day dispatch cut-off time. The countdown timer on the product page shows this cut-off time. While we work with trusted couriers, delivery times cannot be guaranteed.

Free UK Delivery on All Qualifying Orders Over £50. Orders under £50 will incur a £5.90 Delivery Fee.

This Excludes Delivery to the Scottish Highlands, Offshore Islands and Northern Ireland. These will be charged at an extra rate, which will be calculated at the checkout.

Heavier Items may also incur an extra fee.

Compare the range

Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12
AT-25-220-12
£103.43
Bathroom zones
1,2
Battery backup
Current amps
2 A
Ip rating
IP40
Material
Plastic
Mounting
Wall,Surface
Power consumption
16 W
Voltage
230 V
Wattage
16 W
Timer
-
Blauberg SELV 12v Bathroom Extractor Fan Low Voltage Transformer Surface Mount - ATK-25 220-12
AT-25-220-12
£103.43
1,2
2 A
IP40
Plastic
Wall,Surface
16 W
230 V
16 W
-
_b_l_blauberg_selv_transformer_for_12v_bathroom_wet_room_extractor_fan_timer_3.png
ATK-25-220-T
£124.43
1,2
2 A
IP40
Plastic
Wall,Surface
16 W
230 V
16 W
_b_l_blauberg_selv_transformer_for_12v_bathroom_wet_room_extractor_fan_timer_3.png
ATK-25-220-TH
£142.28
1,2
2 A
IP40
Plastic
Wall,Surface
16 W
230 V
16 W