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PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS
For correct operation of the equipment, it is important to read and be familiar
with this entire manual before installing and operating the charger.
LOOK FOR THIS SYMBOL TO POINT OUT SAFETY PRECAUTIONS.
BECOME ALERT—YOUR SAFETY IS INVOLVED. IF YOU DO NOT FOLLOW THESE
SAFETY INSTRUCTIONS, INJURY OR PROPERTY DAMAGE CAN OCCUR.
1. IMPORTANT SAFETY INSTRUCTIONS
a. Before using the battery charger, read all the
instructions and caution markings on the
battery charger, the battery, and all of the
products using the battery.
b. Do not touch the uninsulated parts of the AC
input or the DC wires, the charger's binding
posts, or the battery terminals, as there is a
possibility of electrical shock.
c. Batteries
produce
operating, which can explode if ignited.
Never smoke, use an open flame, or create
sparks in the vicinity of the battery. Ventilate
the area well when the battery is charging in
an enclosed area.
d. Batteries contain caustic material which may
cause burns. Do not get in eyes, on skin, or
clothing. If the gelled or liquid content of the
batteries contacts the skin or clothing, wash
the area thoroughly with water. In the case
of contact with the eyes, flush immediately
with clean water for 15 minutes and obtain
medical attention.
e. Only qualified personnel should program or
service this equipment.
www.nationalrailwaysupply.com
1-800-357-3572
NATIONAL
RAILWAY
SUPPLY
MODEL ELC-24/10
BATTERY CHARGER
DO NOT DISCARD THIS MANUAL AFTER READING.
hydrogen
gas
while
f.
De-energize
connections before servicing this unit.
injury does occur, apply standard treatment
for electrical shock and, if necessary, consult
with a physician.
g. The charger is not for outdoor use. Do not
expose the charger to rain or snow.
h. Do not operate the charger if it has received
a sharp blow, been dropped, or otherwise
damaged.
i.
Do not disassemble the charger. Have the
charger
examined
RAILWAY SUPPLY service agent.
charger is assembled incorrectly, damage to
the charger and the batteries or an electrical
shock may result.
2. DESCRIPTION
The NATIONAL RAILWAY SUPPLY charger, model
24/10, is a convection-cooled, solid state, SCR
regulated charger that provides either a constant
current or constant voltage output. The charger can
be set to charge batteries within a voltage range of
20.0 to 35.0 volts for gel-cell, liquid lead-acid, nickel
cadmium, nickel iron, and starved electrolytic
batteries.
1
*38044*
Installing, Operating and
Service Instructions for the
24/10 Solid State Charger
IT MEANS:
all
AC
and
DC
power
by
a
NATIONAL
If the
38044C
If

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Summary of Contents for NRS ELC Series

  • Page 1 *38044* NATIONAL RAILWAY Installing, Operating and Service Instructions for the SUPPLY 24/10 Solid State Charger MODEL ELC-24/10 BATTERY CHARGER PLEASE SAVE THESE IMPORTANT SAFETY AND OPERATING INSTRUCTIONS For correct operation of the equipment, it is important to read and be familiar with this entire manual before installing and operating the charger.
  • Page 2: Theory Of Operation

    3. THEORY OF OPERATION control module temperature compensation range between 32°F and 95°F ( 0°C When the charger is connected to the desired AC and 35°C) that does not allow charger voltage to voltage source (115 or 230), the transformer creates increase or decrease beyond the calculated values.
  • Page 3: Temperature Probe

    the charger. Open the small door cover on the front WARNING: IT IS IMPORTANT TO MOUNT of the charger by pulling out on the push tabs. TEMPERATURE PROBE Connect the AC power terminals on the two posts on BATTERIES PROPER TEMPERATURE the right, as marked on the panel behind the posts.
  • Page 4: Maintenance

    BE SURE THE CHASSIS IS 50/60/100 Hertz (single phase) SECURELY GROUNDED. If any problem cannot be AC LINE REGULATION: resolved, consult the nearest NRS service agent. DC output at 27.2 volts (2.27 volts/cell for 12 cells) @ 10 amps 10. SERVICING...
  • Page 5 12. PARTS LIST The following is a list of parts found in the NRS model ELC-24/10. When replacing a part, USE ONLY ORIGINAL FACTORY REPLACEMENT PARTS of the correct size and rating. PART NO. QTY. DESCRIPTION 38302S CASE ASSEMBLY MODEL 27410...
  • Page 6 13. WIRING DIAGRAM www.nationalrailwaysupply.com 1-800-357-3572 38044C...

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