Key Features
- Intrinsically safe design for hazardous areas
- High-output audible alarm signal
- Suitable for Zone 0, 1, and 2 applications
- Low current consumption
- Durable construction for harsh environments
Overview
The E2S IS-MA1 Intrinsically Safe Sounder is designed to provide reliable audible warning in hazardous areas where explosive atmospheres may be present. The sounder’s intrinsically safe design ensures it can operate safely in environments such as oil and gas facilities, chemical plants and other industrial sites.
The unit delivers a clear and effective alarm signal while maintaining low power consumption. It is suitable for integration into conventional fire alarm systems and is built to perform consistently in demanding conditions.
Turntable
Approvals
Tech Specs
| Nominal output | 100 dB(A) @ 1 m +/- 3 dB – Tone 2 [91 dB(A) @ 10 ft/3 m] |
| No. of tones | 49 (UKOOA/PFEER compliant) |
| No. of stages | 3 |
| Volume control | Max. 100 dB(A) Min. 90 dB(A) – Tone 2 |
| Effective range | 40 m / 131 ft @ 1KHz |
| Voltage | 16-28 VDC via Zener barrier or galvanic isolator |
| Current | 25 mA typical when powered from 24 V supply via 28 V 300 Ohm Zener barrier |
| Ingress protection | IP65 |
| Rating | Continuous |
| Enclosure material | UL94V0 & 5VA FR ABS |
| Enclosure colour | RAL3000 Red |
| Fixings | Stainless Steel |
| Cable entries | 2 x M20 clearance gland knockouts. Custom configurations also available. |
| MTBF | 273.1 years / 2,392,344 hours – MIL 217 |
| Terminals | 0.5 to 2.5 mm² |
| 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) |
| Weight | 0.36 Kg / 0.79 Ibs |