7
9400016-J0 Rev E
CXPS-E3
User Guide
1.3 Electrical safety
WARNING!
WARNING!
WARNING!
Before working with any live battery or power system, follow these precautions:
a. Remove all metallic jewelry, such as watches, rings, metal rimmed glasses, or necklaces.
b. Wear safety glasses with side shields at all times during the installation.
c. Use OSHA (or international equivalent) approved insulated hand tools.
Lethal voltages are present within the power system. Always assume that an electrical
connection or conductor is energized. Check the circuit with a voltmeter with respect to the
grounded portion of the enclosure (both AC and DC) before performing any installation or
removal procedure.
• Do not work alone under hazardous conditions.
• A licensed electrician is required to install permanently wired equipment. Input voltages can range up to
480 Vac. Ensure that the utility power is disconnected and locked out before performing any installation
or removal procedure.
• Ensure that no liquids or wet clothes come into contact with internal components.
• Hazardous electrically live parts inside this unit are energized from the batteries even when the AC input
power is disconnected.
Follow battery manufacturer’s safety recommendations when working around battery systems.
Do not smoke or introduce an open flame when batteries (especially vented batteries) are
charging. When charging, batteries vent hydrogen gas, which can explode.
Batteries are hazardous to the environment and should be disposed at a recycling facility. Consult the battery
manufacturer for recommended local authorized recyclers.
Hazardous voltages are present at the input of power systems. The DC output from rectifiers
and batteries, though not dangerous in voltage, has a high short-circuit current capacity that
may cause severe burns and electrical arcing.
WARNING!
High leakage current, earth connection essential before connecting the supply.
1.4 Battery safety
• Servicing and connection of batteries must be performed by, or under the direct supervision of, personnel
knowledgeable of batteries and the required safety precautions.
• Always wear eye protection, rubber gloves, and a protective vest when working near batteries. Remove
all metallic objects from your hands and neck.
• Use OSHA (or international equivalent) approved insulated hand tools. Do not rest tools on top of
batteries.
• Batteries contain or emit chemicals known to cause cancer and birth defects or other reproductive harm.
Battery post terminals and related accessories contain lead and lead compounds. Wash your hands after
