Page last updated Oct 20, 2021 @ 10:11pm
N-WCLB-3
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LOAD BANKS
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User Manual (6MB) |
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Resistive Load Bank
81kW max, 3-phase
The NEW N-Series water cooled load bank is perfect for testing many kinds of power sources including generators, UPS systems and battery banks. It consists of a load tank complete with nine resistor elements, voltmeter and ammeters, load step selector switches, inlet and outlet hose fittings, all assembled and wired. Since the resistor elements are electrically isolated from the cooling water, water quality will not affect the load value. Made in USA
FEATURES...
* Resistor elements immersed but electrically isolated from cooling water. Load value
not affected by cooling water quality.* Designed to accept standard bolt-on water heater elements. Load step values can
be changed using locally available 120V and 240V standard elements. Higher voltages
must be special ordered.* Panel meters indicate voltage and current for quick verification of loading
(meters rated 5% accuracy).* Standard load bank configurations with selector switches controlling three load steps for
a wide variety of kW values. Standard configurations with three equal 33% steps
(provides 33%, 66%, 100% loading) or three unequal 20%, 40%, 40% steps
(provides 20%, 40%, 60%, 80%, 100% loading).* Power terminal block for test cables accepts #6 AWG to 350MCM copper or aluminum
conductors per pole.* Cooling water connections for inlet and outlet will accept standard garden hose fittings.
Single female inlet connection and three male outlet couplings provided on tank.* Since there are no cooling fans or other control devices, no external control power source
is needed.
SPECS FOR STANDARD CONFIGURATIONS
Load bank factory configured for one total load watts with three step sizes shown.
Order desired configuration using drop down menu at bottom of this page.
Note that load bank can be operated at any lower voltage or up to listed value plus 10%.
However, load watts will vary with square of voltage.
Bold table values use standard commonly available 240V water heater elements.
Non-bold values use special order 208V or 480V elements. Many other kW values
are also available by special order using 208V or 480V elements.
208V 3-PHASE 240V 3-PHASE 480V 3-PHASE
Total
WattsStep 1
WattsStep 2
WattsStep 3
WattsTotal
WattsStep 1
WattsStep 2
WattsStep 3
WattsTotal
WattsStep 1
WattsStep 2
WattsStep 3
Watts6760 2253 2253 2253 9000 3000 3000 3000 18000 6000 6000 6000 9000 3000 3000 3000 11250 3750 3750 3750 22500 7500 7500 7500 10140 3380 3380 3380 13500 4500 4500 4500 27000 9000 9000 9000 11267 2253 4507 4507 15000 3000 6000 6000 30000 6000 12000 12000 13520 4507 4507 4507 18000 6000 6000 6000 31500 10500 10500 10500 16900 3380 6760 6760 22500 4500 9000 9000 36000 12000 12000 12000 16900 5633 5633 5633 22500 7500 7500 7500 37500 7500 15000 15000 20280 6760 6760 6760 27000 9000 9000 9000 40500 13500 13500 13500 22533 4507 9013 9013 30000 6000 12000 12000 45000 9000 18000 18000 27040 9013 9013 9013 31500 10500 10500 10500 54000 18000 18000 18000 28167 5633 11267 11267 36000 12000 12000 12000 67500 13500 27000 27000 30420 10140 10140 10140 37500 7500 15000 15000 81000 27000 27000 27000 33800 6760 13520 13520 40500 13500 13500 13500 37500 7500 15000 15000 45000 9000 18000 18000 40560 13520 13520 13520 45000 15000 15000 15000 45000 9000 18000 18000 54000 18000 18000 18000 45000 15000 15000 15000 54000 18000 18000 18000 APPLICATION NOTES
1. Tank is not pressure rated. Outlet hoses must be level or sloping down hill to prevent water outflow from top of tank.
2. This load bank can be used on AC or DC voltages. However, cam switches are load-break rated only for AC voltage.
3. Resistor elements are delta connected line-to-line. Therefore no neutral star-point connection is required or available.
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