Addressable Audio Visual Devices
Morley WSO-PR-N00 Wall Sounder Red EN54-3 Non-Isolated
- Standby current
- 225μA
- Max current consumption
- 14.5mA (High Volume Tone 11 @15V)
- Operating temperature
- -25°C to +70°C
- Humidity
- Max. 95% relative humidity (non-condensing)
- Max sound output
- 97dB(A) ±3dB @1m (High Volume, Tone 8 @24V)
- Dimensions
- Height: 64mm Diameter:121mm
- Weight
- 238g
Overview
What it is and how it fits the system.
The Morley WSO-PR-N00 is an EN54-3 approved addressable, loop-powered wall-mounted sounder in red, supplied non-isolated. It delivers up to 97dB(A) ±3dB at 1m with a standby current of just 225μA and a maximum consumption of 14.5mA. Rated for operation from -25°C to +70°C, it measures 64mm high by 121mm diameter and weighs 238g.
Technical overview
The Morley WSO-PR-N00 is an addressable, loop-powered wall sounder, designed for fire alarm systems requiring audible alerts. It delivers a maximum sound output of 97dB(A) ±3dB at 1 metre with a standby current of 225μA and a maximum consumption of 14.5mA. Rated for operation from -25°C to +70°C, it measures 64mm in height by 121mm in diameter and weighs 238g.
The unit is supplied in red and is non-isolated, complying with EN54-3 standards for wall-mounted sounders. Unlike its isolated counterpart WSO-PR-I00, this variant does not include built-in isolation, offering a cost-effective solution where external isolation is used. It is suitable for use in environments with up to 95% relative humidity, non-condensing. The WSO-PR-N00 integrates into Morley addressable loops, providing reliable audible signalling in commercial and industrial fire detection applications.
Specifications
Full technical data for this part.
| Standby current | 225μA |
|---|---|
| Max current consumption | 14.5mA (High Volume Tone 11 @15V) |
| Operating temperature | -25°C to +70°C |
| Humidity | Max. 95% relative humidity (non-condensing) |
| Max sound output | 97dB(A) ±3dB @1m (High Volume, Tone 8 @24V) |
| Dimensions | Height: 64mm Diameter:121mm |
| Weight | 238g |
Specifications sourced from manufacturer documentation.
Specifications per manufacturer documentation, subject to change — E&OE. Spotted an inaccuracy? Let us know
Optional accessories
Optional additions — this product works without them.
Red c/w Isolation. Wall Sounder - Wall-mounted, addressable, loop-powered sounder, EN54-3 approved.
Alternative — same wall sounder with built-in isolation.