Atec K576 User Manual

Model K576 Resistive

Portable Load Bank - 500 Amps

Lightweight Construction

Durable Load Elements

Portable with Lifting Handles

52 Volt with DC Operation

Load Step Toggle Switches for
Load Control

The Avtron Model K576 Load Bank is a lightweight,

self-contained, portable unit for testing DC power sources.

The Avtron Model K576 Load Bank
provides up to 500 amperes load at
52 volts DC. The indoor unit comes
with many convenient features that
make it simple to use. These include
a control panel located on the front
of the load bank, easy access load
connections, and casters for maxi­mized mobility.

The K576 is built to last. Its load ele­ments are engineered to operate at
one half of their temperature rating to
provide stable loading and for longer
life. The load circuit is operated using
fully rated load contactors actuated
by switches on the control panel.

Control and blower power are de­rived from an external 120 volt, single
phase, 60 Hz source. A reliable, heavy
duty, industrial type motor drives the
blower that provides the necessary
cooling for the load elements.

The K576 low weight of 160 lbs.
[73 kg], convenient operation, and
it is built to last, are features that
make it the leading load bank choice
in its class.

The Model K576 is used for testing
DC power sources including convert­ers, transformer-rectifiers, battery
systems, and Uniterruptible Power
Supplies (UPS).

No Cool Down Period Required

Legendary Avtron quality combined
with simple operation and mainte­nance will provide years of trouble
free service.

Avtron’s extensive line of Load Bank
and Industrial Resis tor Products are
solid performers used throughout
the world.

For total technical support or
additional information, please
contact Avtron at [phone]
or [e-mail].

power test solutions

Model K576 Portable Load Bank

OUTLINE DRAWING:

LOAD CONNECTON

SCREENED
AIR EXHAUST

TERMINALS

28.00

[711.00]

LIFTING
HANDLES
(BOTH ENDS)

4.00 [101.00]

27.00

[685.00]

SPECIFICATIONS:

CONSTRUCTION: The load bank is contained in a rugged
aluminized steel enclosure, with two rigid and two lockable
swivel casters mounted at the corners, and four lifting handles
provided for simplified handling.

CONTROL POWER: Control power is derived from an exter­nal 120 volt, single phase, 60 Hz power source. A line cord
is included with the load bank for quick disconnect.

BLOWER: A heavy duty, reliable, industrial blower is used
for cooling the resistive elements. This 1/4 HP device oper­ates from the same 120 volt, single phase, 60 Hz power
source as the load bank control circuit.

RESISTIVE ELEMENTS: Made of a chromium
alloy, the resistive elements are specially
wound and continuously supported
in the cooling air stream. They are de­signed to operate at one half of their
rated temperature rating for more

K576 LOAD CAPACITY RATINGS:

Total Load Amps Volts DC Load Steps in Amps

3.50

[88.00]

CONTROL
SWITCHES

SCREENED
AIR INLET
(BOTH SIDES)

24.00

[609.00]

3.50

[88.00]

CUSTOMER
CABLE ENTRY
(3.00 [76.00] DIA.)

stable loading and longer life without the need for a cool
down period.

CONTROL PANEL: It includes a POWER ON-OFF switch,
a power status indicator light, an ON-OFF switch for each
load step, a MASTER LOAD ON-OFF switch for applying
or removing all selected load steps, and a BLOWER FAIL
indicator light.

PROTECTIVE FEATURES: The control circuit is fuse pro­tected and the load circuit is disabled by a differential
pressure air switch if insufficient cooling air is detected.

WEIGHT: Approximately 160 lbs. [73 kg]

500 52 25, 25, 50, 100, 100, 100, 100

500 52 2.5, 5, 5, 12.5, 25, 50, 100, 100, 100, 100

All dimensions are in inches [millimeters]. Specifications subject to change without notice.

6255 Halle Drive • Cleveland, Ohio, U.S.A. 44125-4615 • 216.573.7600 • FAX [phone]
www.avtronloadbank.com • [e-mail] Bulletin 273 • Rev. C

Quality System Certied to ISO 9001