Description
The Red Professional RHA240SL combines thermistor heat detection with a 220–240 V AC supply and 3 V lithium backup battery. It activates at 55°C to 59°C and supports hardwired interconnection with compatible alarms.
Key features
- Lithium backup battery with a stated ten-year life.
- Hardwired interconnection with up to 40 compatible devices.
- Test/hush control with a ten-minute hush period.
- Power, warning and low-battery indicators.
- Optional RFMOD provides RF communication with compatible devices.
Technical specifications
| Brand |
Red Smoke Alarms |
| Model |
RHA240SL |
| Power supply |
220–240 V AC |
| Backup battery |
3 V lithium; stated life 10 years |
| Detection technology |
Thermistor |
| Activation temperature |
55°C to 59°C |
| Hardwired network capacity |
Up to 40 compatible devices |
| Hardwired distance stated in datasheet |
150 m |
| Wireless option |
Optional RFMOD; module and network limits apply |
| Dimensions |
123 mm diameter × 66 mm |
| Alarm volume |
At least 85 dB at 3 m |
| Mounting |
Indoor; wall or ceiling |
| Operating temperature |
-10°C to 40°C |
| Operating humidity |
5% to 95% RH |
| Certification stated in datasheet |
CSIRO |
| Standard stated in datasheet |
AS 1603.3:2018 |
Installation and compatibility
Mains wiring requires installation by a qualified electrician. Follow the manufacturer’s installation and testing instructions.
This is a heat alarm, not a smoke detector. Wireless operation requires the compatible RFMOD accessory; the supplied RFMOD datasheet specifies up to 20 wireless devices.
Wireless range depends on the building and obstructions. Pair only compatible devices and follow the installation instructions for every device in the network.
Contact Smoke Alarm Services to discuss this product and the right setup for your property.
Red RHA240SL Mains-Powered Heat Alarm with 10-Year Backup Battery
The Red Professional RHA240SL combines thermistor heat detection with a 220–240 V AC supply and 3 V lithium backup battery. It activates at 55°C to 59°C and supports hardwired interconnection with compatible alarms.
Description
The Red Professional RHA240SL combines thermistor heat detection with a 220–240 V AC supply and 3 V lithium backup battery. It activates at 55°C to 59°C and supports hardwired interconnection with compatible alarms.
Key features
Technical specifications
Installation and compatibility
Mains wiring requires installation by a qualified electrician. Follow the manufacturer’s installation and testing instructions.
This is a heat alarm, not a smoke detector. Wireless operation requires the compatible RFMOD accessory; the supplied RFMOD datasheet specifies up to 20 wireless devices.
Wireless range depends on the building and obstructions. Pair only compatible devices and follow the installation instructions for every device in the network.
Contact Smoke Alarm Services to discuss this product and the right setup for your property.
Additional information
Red Smoke Alarms
RHA240SL
220–240 V AC
3 V lithium; stated life 10 years
Thermistor
55°C to 59°C
Up to 40 compatible devices
150 m
Optional RFMOD; module and network limits apply
123 mm diameter × 66 mm
At least 85 dB at 3 m
Indoor; wall or ceiling
-10°C to 40°C
5% to 95% RH
CSIRO
AS 1603.3:2018
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