Solo SELV 12



The Solo SELV 12 range has been developed specifically for complete safety in the 'splash zone’ of a bathroom and shower room for those rooms, usually internal, that need to have the exhaust air ducted some distance to an external discharge point. A single inlet impeller has been designed for maximum performance and minimum noise levels. The grille ensures efficient air management and incorporates a filter that can be removed for cleaning without dismantling the fan.

Suitable for wall, panel and ceiling installations and windows up to 25mm thick. For high rise or coastal applications, install through the wall with a Vent Cowl (Stock Ref No. 56 14 03). With a powerful SELV motor and proven, high efficiency centrifugal impeller, Solo SELV 12 can be used with 100mm diameter smooth bore duct in straight runs equal to 50m, yet still meets the 54m3/h (15 l/s) required by the Building Regulations Document F for ventilation of bathrooms.Solo SELV 12 can also be used with System 25 flat ducting for shorter concealed runs that benefit from its ultra slim 25mm depth.

The safety isolating transformer, to BS EN 60742, is mounted in a purpose made enclosure. The enclosure can be wall mounted or sited in the loft. The enclosure will accept mini trunking.

Model Range

Safety Extra Low Voltage fan with airflow shutter and washable filter. Mains transformer with 12V SELV output.
Stock Ref No: 11108000B
SOLO SELV 12T (Timer)
SELV fan with airflow shutter and washable filter. Mains transformer with 12V SELV output with presettable overrun timer (5-25 minutes)
Stock Ref No: 11108030B
SOLO SELVH (Humidity)
Safety Extra Low Voltage fan with airflow shutter and washable filter. Controller. Mains transformer with 12V SELV output. Remote Ecotronic SELV 12 Humidity sensor with pullcord override included.
Stock Ref No: 11108040B
SOLO SELVDP (Two speed)
Two speed Safety Extra Low Voltage (SELV) fan with airflow shutter and washable filter. Mains transformer with 12V SELV output.
Stock Ref No: 11108020B
Model: 563516
Double Airbrick to Circular Duct Adaptor
Stock Ref No: 563516

Product Specification

Rear 20mm conduit entry for recessed wiring and side entry grommet for surface wiring.

Supply voltage to transformer/controller
Output to fan 12V SELV/1/50Hz.

To meet IEE Regulations, timer models should be isolated using a 3 pole isolator.
Stock Ref. No. 56 35 18

Best Practice
Sensors and auto mode controllers save energy by only switching the ventilation units on when needed and when the room is occupied.

Window fitting kit Stock Ref. No. 114 61 685A
White wall fitting kit Stock Ref. No. 25 41 02
Brown wall fitting kit Stock Ref. No. 25 41 00

Type Stock Ref. No. Amps @ 240V Extract m³/h Performance l/s Max Watts dB(A) 85m³/h Shutter
Solo SELV12 111 08 000B 0.26 85 24 39 42 Yes
Solo SELV12T 111 08 030B 0.26 85 24 41 42 Yes
Solo SELV12H 111 08 040B 0.26 85 24 43 42 Yes
Solo SELV12DP 111 08 020B Hi 0.26 85 24 Hi 39 42 Yes
Solo SELV12DP 111 08 020B Lo 0.12 45 13 Lo20 37 Yes



The shaded area indicates the variable speed boost range, adjustable at installation.




Manufacturers of some fluorescent/low energy lighting systems indicate that these can interfere with other electronic/timing circuits. For reliable operation of these circuits we recommend therefore that a tungsten filament light is used.


Fan Dims 155 140 36 98Ø 85 55 60
Transformer 175 90 55 30
Weight 1.35kg



Window Model
Window fixing hole Ø 113mm
Window fixing hole Ø 113mm




Typical Specifications

Supply and install a Solo SELV (Safety Extra Low Voltage) centrifugal fan, suitable for window, wall or ducted applications with integral backdraught shutter and fan running light as manufactured by

Vent-Axia Ltd
Fleming Way
West Sussex
RH10 9YX
Telephone: 01293 526062.

When installed the fan should comply with the 16th Edition of IEE Regulations (BS7671,2001) and on site guide for safety extra low voltage (SELV) operation. The transformer should be safety isolating to BS EN 60742. The fan should be rated IX57. The fan and controller should be BEAB Approved.

The fan performance should meet the Building Regulation (Document F) requirements of 15 litres a second for bathrooms and 6 l/s for toilets with a 15 minute timer overrun.

The motor should be of a shaded pole induction construction and fitted with ball bearings. The motor should be insulated to Class B and fitted with Standard Thermal Overload Protection (S.T.O.P.) and designed to operate on SELV 12/1/50Hz.

Filter is easily removed for cleaning
Semi Recessed installation

There are no softwares available for download for this particular product.