Federal Signal G-SND Instructions page 2

Specific Conditions of Use
• The Modular Audible Device enclosure incorporates a sinter and the volume is greater than 100 cm
of the Modular Audible Device in a carbon disulphide gas atmosphere is not permitted.
• The Modular Audible Device has external non-metallic surfaces that may provide an electrostatic charging hazard.
See the manufacturer's instructions for further information.
• The Modular Audible Device has metallic components in the non-metallic walls of the enclosure that can store
electrical charge and therefore may provide a potential electrostatic discharge. The metallic brass inserts have a
capacitance of 24 pF. See the manufacturer's instructions for further information.
cULus Zone Certifications
This equipment is for use in Class I, Zone 1 and Zone 21 hazardous (classified) locations. It has been investigated with
reference to risks to life and property and for conformity to the installation and use in provisions of Articles 505 and 506
of NFPA 70 (NEC).
These models use protections:
• Class I, Zone 1, AEx db IIC T4 Gb or AEx db eb IIC T4 Gb
• Zone 21, AEx tb IIIC T135°C Db IP66 (Tamb= -55°C to+70°C)
• Ex db IIC T4 Gb or Ex db eb IIC T4 Gb
• Ex tb IIIC T135°C Db IP66 (Tamb= -55°C to+70°C)
UL Fire Alarm Certifications
See page 13.
Unpacking the Sounder
After unpacking the sounder, examine it for damage that may have occurred in transit. If it has been damaged, do not
attempt to install or operate it. File a claim immediately with the carrier, stating the extent of the damage. Carefully
check all envelopes, shipping labels, and tags before removing or discarding them. If any parts are missing, please call
Federal Signal Customer Support at +1 708-534-4756 or +1 877-289-3246.
Creating Combination Fixtures in the Field
The Federal Signal Global Series Ex de products can be connected together in the field using interchangeable E-box end
caps and a proprietary coupling system. See Figure 1.
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Figure 1 Sounder and sounder combination fixture
; therefore, use
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