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The Ei146e mains powered optical smoke alarm from EI Electronics is the upgrade to the Ei146RC detector. The new model features a sleek new design, sealed insect mesh, and automatic dust compensation for improved resistance to false alarms. Full backward compatibility with all devices used with the previous versions, including the Ei1529RC remote control switch and Ei168RC wireless base, means adding it to an existing EI140/160/3000 system or replacing an old alarm is quick, easy, and reliable.
The table below shows all the units that can interlink with the EI140e series.
Smoke and Heat Alarms
Model Number
|
Type of Unit
|
Type of Interlink
|
Ei3014 / Ei3014RF | Mains Powered Heat Alarm - Sealed Lithium | Hardwire Interlink |
Ei3016 / Ei3016RF | Mains Powered Optical Smoke Alarm - Sealed Lithium | Hardwire Interlink |
Ei3024 / Ei3024RF | Mains Powered Optical & Heat Alarm - Sealed Lithium | Hardwire Interlink |
Ei3028 / Ei3028RF | Mains Powered Heat & Carbon Monoxide Alarm - Sealed Lithium | Hardwire Interlink |
Ei2110e / Ei2110eRF | Mains Powered Multi Sensor Smoke & Heat Alarm - Sealed Lithium | Hardwire Interlink |
Ei161e / Ei161eRF | Mains Powered Ionisation Smoke Alarm - Sealed Lithium | Hardwire Interlink |
Ei164e / Ei164eRF | Mains Powered Heat Alarm - Sealed Lithium | Hardwire Interlink |
Ei166e / Ei166eRF | Mains Powered Optical Smoke Alarm - Sealed Lithium | Hardwire Interlink |
Ei141 / Ei168RC141RC | Mains Powered Ionisation Alarm - 9V Alkaline | Hardwire Interlink |
Ei144 / Ei168RC144RC | Mains Powered Heat Alarm - 9V Alkaline | Hardwire Interlink |
Ei146 / Ei168RC146RC | Mains Powered Optical Smoke Alarm - 9V Alkaline | Hardwire Interlink |
Carbon Monoxide Alarms
Model Number
|
Type of unit
|
Type of interlink
|
Ei3018 / Ei3018RF | Mains Powered Carbon Monoxide Alarm - Sealed Lithium | Hardwire Interlink |
Ei3028 / Ei3028RF | Mains Powered Heat & Carbon Monoxide Alarm - Sealed Lithium | Hardwire Interlink |
Ei261 | Mains Powered Carbon Monoxide Alarm - Sealed Lithium | Hardwire Interlink |
Ancillary Products
Model Number
|
Type of unit
|
Type of interlink
|
MCP401RC | Mains Powered Manual Call Point | Hardwire Interlink |
Ei1529RC | Mains Powered Locate, Silence & Test Control Switch | Hardwire Interlink |
Ei159 | Mains Powered Smoke Alarm Locator Switch | Hardware Interlink |
Ei128R | Mains Powered 5A Relay Module | Hardwire Interlink |
Ei128RBU | Mains Powered 5A Relay Module with Lithium Backup Battery | Hardwire Interlink |
Y03 | Mains Powered Multi Frequency Sounder | Hardwire Interlink (via relay) |
SAB300C | Mains Powered Flashing Xenon Strobe (Clear) | Hardwire Interlink (via relay) |
SAB300R | Mains Powered Flashing Xenon Strobe (Red) | Hardwire Interlink (via relay) |
Wiring Explained
Mains powered Ei Electronics smoke and heat alarms require a 230V AC power supply and up to 12 alarms can be hardwire interlinked in one system.
To obtain a mains power supply, each alarm can be connected to the nearest lighting circuit using 2 core and earth cable with a separate, dedicated interlink cable connecting all alarms. However, if possible it is recommended that the alarms are all powered from a dedicated circuit from the distribution board using 3 core and earth cable for safety during maintenance, as the interlink cable will carry power from live alarms on other power circuits. Please see the diagram below:-
Product Code | EI146E |
---|---|
Alternative Product Codes | Ei146, Ei146RC, Ei146EK, Ei146e |
Brand | EI Electronics |
Back-Up Battery | 9V Alkaline (replaceable) |
Dimensions (HxDia) | 47 x 148mm |
Operating Temperature | -10°C to 40°C |
Power Consumption | 0.75 Watts |
Relative Humidity | 15% to 95% |
Sound Output | 85dB (A) at 3 metres |
Warranty | 5 Years |
Weight | 0.35kg |
Product Datasheets |
For the mains supply of the first unit a 2-core earth cable would be sufficient. For the connection between the alarms a 3-core earth cable would be required
Yes, we recommend the Ei261EN. You should also install a Ei159 locator to allow you to find out if the alarm was triggered by CO gas or by fire.
To wire the units correctly you would use 2 core and earth cable to the first unit and 3 core and earth to the interconnected units. The alarms do not have to be earthed but a brass screw connector is provided so that the earth can be safety terminated.
Yes, the new Ei3000 series is fully backward compatible and will work directly with the the Ei140 series base. Both the power supply and the interlink with any remaining Ei140 alarms will continue to work with your new Ei3000 alarm.
The RC just refers to "Remote Control" as the unit can be fitted to a radio-frequency base for interconnection. The model hasn't changed but the manufacturers changed the product code slightly in reference to this.
Model | Stock | Price |
---|---|---|
Product Code: EI146E |
Stock Level:
More than 20 in stock Expected dispatch: 11th Nov
|
Price:
£40.55 inc VAT £33.79 ex VAT |
Approved Partner
The following delivery options are available on this product.
46 customers have given this product an overall rating of 4.7 out of 5
Rating: 5 / 5 Stars
Reviewed by: V H
Good service and easy to install
Published on: 15th January 2024
Rating: 5 / 5 Stars
Reviewed by: J C
Easy to fit
Published on: 21st November 2023
Rating: 5 / 5 Stars
Reviewed by: J M
Replacement is a Upgrade of the existing Mains Powered Optical Smoke Alarm Direct replacement. Very easy to install. Turn of rocker switch at fusebox. Slide old unit off. Slide new unit on. (New base plate was supplied. Should it have been required.
Published on: 17th September 2023
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