Avtron K571
Resistive Portable Load Bank - 900 or 1000 Amps
Testing Your Emergency Standby
Generator with a Load Bank Means
Reliability When it Matters Most.
Key Features
•Typical Designs Available are:
900 or 1000 amps, 52 volt DC load, or
1000 amp, 28 volt DC load
•Custom Designs also Available
•Cooling Air Loss Protection
•Portable Load Bank
•Master Load Switch
•Meters Indicate Load Status
Ammeter and Voltmeter Available
The Avtron Model K571 Load Bank is designed for indoor
operation and is for testing DC power sources.
The Avtron K571 load bank is suitable for testing DC generating systems, converters, transformerrecitifier units, battery systems, and controls. The K571 is equipped with two fixed and two lockable
swivel casters which allow the unit to be moved easily from one test site to another.
Electrical connections are simplified by the easy access terminals located behind the access door
on the front of the unit. A safety interlock switch disables load application if the access door is
opened for operator safety.
The load bank is completely self-contained with a blower included for cooling the load resistor
elements. Control and blower power is derived from an externally supplied 120 VAC, single
phase, 60 Hz source. A line cord is included for convenient power connection.
The control panel is equipped with carefully arranged toggle switches and status indicators. Large,
easy to read voltmeter and ammeter are available mounted on the control panel to provide accurate
measurements during testing.
The K571 load bank is a rugged, easy to use, indoor DC load bank that is designed to provide years of
reliable operation in laboratory and industrial environments to test batteries, transformer-recitifiers,
and other DC power sources.
Superior Avtron quality combined with
simple operation and maintenance will
provide years of trouble free service.
Avtron’s extensive line of Load Bank and
Industrial Resis­tor Products are solid
performers used throughout the world.
For total technical support or additional
information, please contact Avtron at
(216) 573-7600 or LBsales@Emerson.com.
Quality System Certified to ISO 9001
K571 1000 amp Portable
Resistive Avtron Load Bank
shown with local control panel.
Avtron K571
Resistive Permanent Load Bank - 900 or 1000 Amps
Specifications subject to change without notice.
Reliability
The rugged load resistor assemblies in the
K571 are cooled by a reliable heavy duty
industrial blower. Avtron’s special air switch
protects load resistor elements against loss of
cooling air. Full rated contactors are used for
switching all load steps.
Indicator Lights
Load Capacity Ratings:
Available Load Step Resolution: 5 or 50 A
Amps
28 VDC
900
1000
Load Bank Weight (approx.)
52 VDC


305 lbs. [138.3 kg]

NOTE Other designs available upon request. Consult factory.
BLOWER ON and AIR FAILURE
Switches
22.50
[571.50]
ON-OFF load control for each load step.
MASTER LOAD ON-OFF control for total
load (all selected steps).
27.97
[710.40]
SCREENED
AIR OUTLET
9.75
[247.60]
Meters (Optional)
Digital volt and ammeter.
5.50
[139.70]
Cooling
Self-contained 0.5 HP blower, 120 V,
single phase, 60 Hz.
Control Power
120 volt, single phase, 60 Hz.
HANDLE
62.56
[1589.00]
Mobility
4 rubber casters: 2 rigid and 2 swivel with
foot operated locks.
52.81
[1341.40]
Accessories
Optional canvas protective cover and multiconductor flexible load cables available.
HINGED
ACCESS
PANEL
CUSTOMER
CONNECTION
LOAD INPUT
SCREENED AIR
INTAKE THIS
SIDE AND
OPPOSITE SIDE
“GND”
CONNECTION
CONTROL
POWER
5.31
[134.80]
RIGID CASTERS
SWIVEL CASTERS
All dimensions are in inches [millimeters].
Emerson Network Power
Avtron • 6255 Halle Drive, Cleveland, Ohio 44125, U.S.A.
216-573-7600 • FAX: 216-573-5953 • LBsales@Emerson.com
EmersonNetworkPower.com/loadbank
Emerson. Consider it Solved and Emerson Network Power are trademarks of Emerson Electric Co.
or one of its affiliated companies. All the other marks are the property of their respective owners.
Specifications subject to change without notice.
©2015 Emerson Network Power Bulletin 271• Rev. E