E2S MA121 Electronic Sounders

E2S MA121 Electronic Sounders


E2S MA121 Electronic Sounders for Industrial Signalling Applications

The ‘M’ series of products have been designed to withstand the harshest of environments. Constructed from lightweight, impact and fire resistant ABS, the range features stainless steel, ratchet adjustable mounting brackets and has been third party tested to IP67.


  • Operational Characteristics: 
– Electronic sounder.
– Sound Frequency: 45 tones, including ISO tones to Australian Standards (see tone table in attached pdf).
– Sound Output: Max 126dB @ 1m.
– Automatic synchronization on multi-sounder systems (requires sounders to be connected to the same supply).
– Volume control (121dB max. – 112dB min on tone 2).
– Three stage alarm (reverse polarity stage switching on DC units).
– Protection Degree: IP67.
– Temp Rating: -25 to +55 degrees Celsius.
– Rating: Continuous.
– Cable Entry: 2 x M20.
– Construction: Flame retardant ABS.


Order Code Description
ESS5212  MA121 sounder, 10-30VDC, 950mA @ 24VDC.
ESS5213  MA121 sounder, 24VAC +/- 10%, 1.00A.
ESS5216  MA121 sounder, 35-60VDC, 600mA @ 48VDC.
ESS5221  MA121 sounder, 115VAC +/- 10%, 240mA.
ESS5231  MA121 sounder, 230VAC +/- 10%, 120mA.


(please see attached PDF’s for further information)