Eaton Crouse-hinds series - HNA & HNB Horn Relay Configuration; GPA & GPB Group Relay Functions

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TM293 MEDC DB3BM UL Technical Manual
SOUNDER/HORN – DB3BM UL TM293.A August 2022 www.eaton.com
7.0 SPECIAL CONDITIONS FOR SAFE USE
•
For replacement purposes M5 x 0.8 x 20 mm long
cover bolts shall be used and shall have a property
class of A2-70 or stronger. Reduced shank fasteners
must be used with covers employing threaded holes.
Fully threaded fasteners must be used with covers
employing plain clearance holes.
•
The flameproof joints are not intended to be repaired.
•
Potential Electrostatic Charging Hazard. If the unit
requires cleaning, only clean exterior with a damp cloth
to avoid electrostatic charge build-up. See instructions
for further guidance
•
If metal certification labels are attached to the horn
they are known to be capable of retaining the
following charges.
3.33pF - Label size 65mm x 40mm (2.5”x1.5”)
7.15pF Label size 105mm x 42.5mm (4” x 1.3/4”)