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GNExS1-R Radial Alarm Sounder / Horn

The flameproof GNExS1-R alarm sounder with a radial horn. Suitable for Zone 1 & Zone 2 applications - certified to ATEX and IECEx.

The radial horn on the compact GNExS1-R distributes the warning signal omni-directionally. Sound level ouputs are up to 115dB(A) at 1 metre with a choice of 64 alarm tones and 4 remotely selectable stages. The alarm tone frequencies for the first 2 stages are independently selectable. The GNEx range features enclosures manufactured from GRP (glass reinforced polyester), moulded in natural red, but also available in other colours. 
The omni-directional horn is high impact, fire retardant ABS. All models have two M20 cable entries, large termination areas containing in & out terminals and an ingress protection of IP66/67.

Specification

 
Maximum output: 115dB(A) @ 1 metre [106dB(A) @ 10ft/3m]
Nominal output: 110dB(A) @ 1m +/- 3dB - Tone 2 [101dB(A) @ 10ft/3m]
No. of tones: 45 (UKOOA / PFEER compliant)
No. of stages: 4
Volume control: Max. 110dB(A);
Min. 72dB(A) - Tone 44
Effective range: 100m/328ft @ 1KHz
Voltages DC: 24vdc (10-30vdc), 48vdc (38-60vdc)
Voltages AC: 230vac (100-260vac/dc)
Stage switching: Negative or positive
Ingress protection: IP66/67
Housing material: GRP
Colour: RAL3000 Red
(others available on request)
Flare: High impact UL94 V0 & 5VA FR ABS (Red)
Cable entries: Dual M20 ISO
Terminals: 0.5 to 2.5mm² cables.
Line monitoring : Min. 500 Ohm 2w,
or 3k3 Ohm 0.5w res.
or diode within Exd enclosure
(dc versions)
Relative humidity: 95% - Additional tropicalisation is recommended for applications where both high relative humidity and high ambient temperatures exist
Weight: DC: 3.35kg/7.37Ibs AC: 3.55kg/7.81Ibs

Current Consumption

Version: Voltage: Current:
24V dc 10-30vdc 140mA @ 24vdc
48V dc 38-60vdc 73mA @ 48vdc
115V ac/dc 100-260 86mA @ 115vac
50/60Hz vac/dc  
230V ac/dc 100-260 75mA @ 230vac
50/60Hz vac/dc  

Part Codes

Version: Part code:
Product type: GNExS1R
Voltage: DC024
AC230
10-30V dc
110-240V ac
Stopping
plug material: [m]
B
N
S
Brass
Nickel Plated
Stainless Steel
Bracket material: [s] 1
2
3
4
A2 304 Stainless Steel
A4 316 Stainless Steel
A2 304 St/St with Equip. Tag
A4 316 St/St with Equip. Tag (304)
Product version: [v] A1 Approval to ATEX & IECEx (default)
Enclosure colour: [x] R Red
Example: GNExS1RAC230[m][s][v][x]
GNExS1RAC230B1A1R
  GNExS1R 24vdc Brass stopping plug, 304 stainless steel mounting bracket,
approved to ATEX & IECEx in a red housing.

Coding

  • II 2G Ex d IIC T4 Ta. -60° to +50°C
  • II 2G Ex d IIC T3 Ta. -60° to +70°C
  • II 2G Ex d IIB T6 Ta. -60° to +50°C
  • II 2G Ex d IIB T5 Ta. -60° to +65°C
  • II 2G Ex d IIB T4 Ta. -60° to +70°C