The IS-mA1 is a compact, 100dB(A) alarm sounder. Approvals include ATEX, IECEx and GOST-R for Zone 0 applications and FM approval for Class I Division 1 and Class I Zone 0 applications.
The IS-mA1 is suitable for all intrinsically safe signalling applications including fire, security and process control. The IS-mA1M version is also available for Group I mining environments.
|Nominal output:||100dB(A) @ 1m +/- 3dB – Tone 2*[91dB(A) @ 10ft/3m]|
|No. of tones:||49 (UKOOA/PFEER compliant)|
|No. of stages:||3|
|Volume control:||Max. 100dB(A); Min. 90dB(A) – Tone 2|
|Effective range:||40m/131ft @ 1KHz|
|Voltage:||16-28vdc via Zener barrier or galvanic isolator|
|Current:||25mA typical when powered from
24v supply via 28v 300 Ohm
|Housing material:||UL94V0 & 5VA FR ABS|
|Housing colour:||RAL3000 Red|
|Cable entries:||2 x M20 clearance gland knockouts.
Custom configurations also available.
|Terminals:||0.5 to 2.5mm²|
|Operating temp:||-40° to +60°C [-40 to +140°F]|
|Storage temp:||-40° to +70°C [-40 to +158°F]|
|Relative humidity:||90% at 20°C [68°F]|