This is a 3metre low-voltage extension cable for Domus bathroom heater units.

Send us your heater model and tell us what you are extending before youorder. We hold two fields about this cable.

What we can tell you: it is a 3metre extension cable, describedas low voltage, for a Domus bathroom heater.

What no source records and what decides whether it is the right part: thevoltage (the title says low voltage and no figure is given), theconnector type at each end, the conductor size, the currentrating, which units it fits, and the warranty term. There isno datasheet.

Our record also lists this cable as having a built-in LED. It does not it is a cable.

A photograph of the existing plug and the model number from the ceiling unit settles all of itin one message.

What an extension cable is doing in a bathroom heater installation

• These units separate the heater from its wall switch, and the run between them is aplug-in low-voltage lead rather than hard wiring which is what makes the switch replaceablewithout an electrician touching the ceiling unit.
• An extension is needed when the supplied lead does not reach a switch onthe far side of a door, a unit set back in a long bathroom, or a retrofit where the switch position isfixed by an existing wall box.
• The supplied lead length varies by model, so whether 3metres is enoughdepends on the unit as well as the distance. Measure the run and tell us.

Do not extend beyond what the manufacturer allows

• A low-voltage control run has a maximum length, beyond which voltage drop makes thecontrol unreliable a switch that works intermittently, or a function that will not respond.
• No source we hold states that maximum, or whether two extensions may be chained.Ask us before assuming this is exactly the kind of thing that produces a faultnobody can diagnose afterwards.
• Tell us the actual distance and we will confirm with Domus whether one 3metreextension covers it.

Getting the right one

• A photograph of the plug on the existing lead the connector type is what hasto match, and it is not recorded anywhere.
• The model number from the ceiling unit usually on a label inside the fascia orin the manual.
• The distance you need to cover, measured along the route the cable will take ratherthan in a straight line.
• We will confirm the part with Domus before it ships rather than send something thatlooks close.

This is licensed electrical work

Even a low-voltage lead in a bathroom heater installation means opening the fascia of a240V appliance in a wet area.

• Isolate at the switchboard, not at the wall switch.
• It is a short job for an electrician, but the units behind these fascias carry theheater load as well as the fan and lights.

What we are deliberately not publishing

Voltage. Connector type. Conductor size. Current rating. Maximum total run length. Whichunits it fits. Warranty term.

None appears in the manufacturer’s data or our own record. On a cable feeding a 2,250Wappliance’s control circuit, guessing at any of them would be worse than leaving them out.

Where it works

• Extending the control lead on a Domus bathroom heater once we have confirmed themodel and the connector.
• Retrofits where the switch position is fixed by an existing wall box.
• Not confirmed for any specific unit send us a photograph.
• Not to be chained without checking the maximum run with us.
• Not a DIY job licensed electrician, isolated at the board.

Specifying it

3metre low-voltage extension cable for Domus bathroom heater units.

No datasheet exists for this part. Its voltage, connector type, conductor size,current rating, maximum total run length, compatible units and warranty term areall unrecorded, and we are not publishing figures we cannot stand behind. Our record’s built-in LED entry is the wrong field for a cable.

Send us a photograph of the existing plug, the model number from the ceiling unit, and thedistance you need to cover, and we will confirm the correct part with Domus before you order.Installation by a licensed electrician.

Supplied and supported by Lights For You.

Questions

Will it fit my heater?

Send us a photograph of the plug on the existing lead and the model number from the ceiling unit, and we will confirm with Domus. The connector type is what has to match and it is not recorded anywhere there is no datasheet for this part and the product record holds two fields.

What voltage is it?

Not recorded. The title says low voltage and no figure is given anywhere, which is not enough to work from on a cable feeding a heater’s control circuit. Ask us and we will confirm.

Can I use two of them to cover a longer run?

Ask us first. A low-voltage control run has a maximum length beyond which voltage drop makes the control unreliable a switch that works intermittently, or a function that will not respond. No source we hold states that maximum or whether extensions may be chained, and this is exactly the kind of thing that produces a fault nobody can diagnose afterwards.

How do I know if 3 metres is enough?

Measure the run along the route the cable will actually take rather than in a straight line, and tell us the figure along with your heater model. The supplied lead length varies by model, so whether 3 metres of extension is enough depends on the unit as well as the distance.

Why would I need an extension at all?

Because the supplied lead does not reach. These units separate the heater from its wall switch with a plug-in low-voltage lead rather than hard wiring, which is what makes the switch replaceable without an electrician touching the ceiling unit. An extension is needed where the switch is on the far side of a door, the unit is set back in a long bathroom, or the switch position is fixed by an existing wall box.

Can I fit it myself?

No. Even a low-voltage lead means opening the fascia of a 240V appliance in a wet area, and the units behind these fascias carry the heater load as well as the fan and lights. Isolate at the switchboard rather than at the wall switch, and treat it as licensed electrical work.

Does it have an LED in it?

No it is a cable. Our product record lists a “built-in LED” for this item, and that is simply the wrong field rather than a wrong value.