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Shelly 1L no neutral relay with bypass
Smart Relays
Shelly

WiFi Relay - Shelly 1L + Bypass (NO Neutral required)

Product code 0332
Sh 150,000.00
In stock in Dar es Salaam

In stock

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  • Genuine stock. Sourced from authorised distributors, warranty intact.
  • Delivered across Tanzania with additional delivery charges.
  • Multiple payment options.
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No neutral Works on old wiring
4.1 A Lighting loads only
20 W Minimum load without neutral
Bypass Supplied in the box
No hub Works with the internet down

About this product

The Shelly 1L is the one that does not need a neutral. That is the whole point of it.

Why the Shelly 1L needs no neutral, and why that matters

Most in-wall modules need a live and a neutral in the switch box. In older Dar wiring the switch box often has only the live and the switched line going up to the fitting.

That single fact rules out every other module on this page. The Shelly 1L works from those two wires alone, so in a house that was never wired with neutrals at the switches, it is the difference between doing this at all and not doing it.

What you give up: the load rating

4.1A, about a fifth of a normal relay.

That is comfortable for lighting and wrong for a heater, a pump or a geyser. Do not size this against the 16A modules elsewhere in this category; if the load is heavy, you need a neutral and a proper relay, and there is no way around it.

The bypass, and why it is in the box

Working without a neutral, the module draws its own power through the load. It needs a minimum of about 20W to do that, and modern LED bulbs often draw far less.

That is what the bypass is for. It sits at the light fitting, not in the switch box, and makes up the difference. Without it, low wattage LEDs flicker or glow faintly when they should be off, which is the single most common complaint about no-neutral modules and the reason this one ships with the bypass included.

Fitting and switches

38 x 43 x 14mm, and an electrician fits it — with the bypass at the fitting rather than in the switch box, which is worth saying to them explicitly before they start.

It takes one or two wall switches on its inputs and works with either momentary or toggle switches, so an existing plate carries on unchanged.

What it does not do

No metering and no dimming. It switches only.

If your switch box does have a neutral, you are not limited to this module and the Shelly 1 gives you 16A and a dry contact output for the same money. Check with your electrician before ordering, because it is a five minute look and it changes which product you want. No hub and no account: it keeps a local web interface so schedules survive an internet outage. Shelly cover the no neutral wiring at shelly.com.

Description supplied by the manufacturer.

Specifications

ModelShelly 1L
TypeIn-wall relay module, no neutral required
FittingElectrician. Bypass fitted at the light.
RadioWi-Fi 802.11 b/g/n, 2.4 GHz
HubNot needed
Maximum load4.1 A, 5 A peak
Minimum load without neutral20 W resistive
BypassIncluded, and needed on low wattage LED loads
Supply110 to 240 V, 50/60 Hz
Power meteringNo
DimmingNo
InputsTwo, for one or two wall switches
RangeUp to 30 m indoors, 50 m outdoors
Operating temperature-20 to 40 C
Dimensions38 x 43 x 14 mm
Product code0332
CategorySmart Relays
AvailabilityIn stock in Dar es Salaam

What’s in the box

  • Shelly 1L module
  • Bypass

Questions

How do I know whether I have a neutral in the switch box?

Have your electrician open the switch. If there is only a live and a switched line going up to the light, you have no neutral there and this is the module you need. If there is a neutral, the ordinary Shelly 1 or 1PM will carry far more load for less money.

What is the bypass for and do I have to use it?

Without a neutral the module draws its own power through the lamp. Under about 20 W there is not enough for it, and the symptoms are a bulb that flickers, glows faintly when off, or will not switch cleanly. The bypass sits at the light fitting and makes up the difference. On LED lighting you will almost always need it.

What can I put on it?

Lighting. 4.1 A is roughly 900 W, and that is a ceiling for the circuit, not a target. A heater, a geyser or a pump belongs on a full relay with a neutral.

Does my existing wall switch still work?

Yes, and it takes two of them if you have a two way circuit. Momentary and toggle switches are both supported.

Anything else? Ask us on WhatsApp and we will tell you straight.

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