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 X250S Load Bank 

 

 

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3) Safety 

a.  Grounding 

The load bank must be firmly and electrically connected to earth ground via the 
grounding found on the unit. Failure to do so could allow deadly voltage to be 
present on the surface of the enclosure. The grounding connection provides a 
low resistance path to ground. This grounding protects the operator from the 
possibility of electrical shock.  

b.  Power Connection 

All power connections must be connected or guarded.  Failure to do so will 
expose the operators to shock, causing severe damage or death.  Without 
properly guarded connections, the unit is in danger of grounding-out or shorting-
out the test power source. 

c.  Intake and Exhaust Ports 

The unit must have free-flowing air through the intake and exhaust ports to 
provide adequate cooling to the resistive elements.  The resistive elements 
convert electrical energy into heat.  If the unit does not have a free flowing intake 
and exhaust port, the heat will build up inside of the unit and cause mechanical 
failure, leading to an electrical short circuit, ultimately damaging the unit and test 
power source. 

To increase the life of the resistive elements, allow the fans to run at least three 
minutes after the load is removed. 

No ductwork is permitted on the intake or exhaust of this unit as it will cause 
backpressure and limit the cooling of the resistive elements. 

Keep intake clear for 6 ft. and exhaust port for 20 ft. to allow full free-flowing. 

d.  Misuse of Product 

DO NOT

 exceed the recommended load limit of the test power source equipment 

manufacturer.  Damage of the test power source equipment will occur if over-
powered. 

 

 

 

 

 

 

 

Summary of Contents for X250S

Page 1: ...X250S Load Bank...

Page 2: ...e Common Best Practices 7 4 Operation 8 a Pre Start Up 8 b Start Up 8 c Applying and Disconnecting Load 8 d Acuvim II Power Quality Meter 9 e Shut Down 9 5 Troubleshooting 10 a Load bank will not turn...

Page 3: ...Bank 3 1 Receiving Check the unit for obvious damage and report any exterior damage to the carrier immediately a Load Bank 1x X250S Load Bank Casters and Lifting Bar are Optional b Manual 1x X250S Own...

Page 4: ...l lifting bar DO NOT lift the unit by any other means this could cause severe damage ii Enclosure 1 Electro statically applied powder coat Blue PPG PCUP70103 2 Air inlet and exhaust are covered by met...

Page 5: ...ance of 5 3 The unit is designed for continuous duty at 1 0 power factor iii Cooling 1 The blowers in the unit are powered off of the auxiliary 120VAC 10A 60Hz plug Customer Connections iv Connect the...

Page 6: ...wing air through the intake and exhaust ports to provide adequate cooling to the resistive elements The resistive elements convert electrical energy into heat If the unit does not have a free flowing...

Page 7: ...operly grounded outlets only viii Do not insert or allow foreign objects to enter any ventilation or exhaust opening as this may cause an electric shock or fire or damage the heater load bank ix To pr...

Page 8: ...known earth ground ii Connect all de energized load power to Cam Lock connections on the unit iii Energize the load power source with an acceptable voltage iv Turn the MAIN on off power switch to the...

Page 9: ...r Reading and Power Factor options iii You will find more detailed instructions on the use of your meter by visiting https accuenergy com and creating an Accuenergy account e Shut Down i Ensure the Ma...

Page 10: ...n ii Make sure the test power source is energized iii Make sure the blower is on iv Make sure the Master switch is in the ON position v Check if the over temperature red light is on vi Check the main...

Page 11: ...switch panel of the load bank and may be removed by pushing down and twisting the front of the fuse cover ii Meter FMA FMB FMC Fuses These fuses are located under the lid of the load bank They may be...

Page 12: ...it The fuses can be found on the bus bars located on the panel inside To remove a fuse remove the screws attaching is to the bus bar b Replacing Contactors Contact Mosebach Manufacturing Co if there i...

Page 13: ...nspect for a Obvious damage b Loose hardware Every use Cold Resistance Check Every 6 months Air Flow Test Every 6 months Power Test Every 6 months Open Control Panel and Inspect for a Loose wire conne...

Page 14: ...Red Light EC 9500 1904 OTS Sensor EC 9500 2182 Fuse 10A Type AGC EC 9500 1577 Fuse 1A EC 9500 0247 Fuse 450A EC 9500 0916 Resistor Elements RA 0055 0395 1 RA 0055 0395 2 RA 0055 0395 3 RA 0055 0395 4...

Page 15: ...018 Mosebach Manufacturing Company MOSEBACH MANUFACTURING COMPANY 1417 McLaughlin Run Road Pittsburgh PA 15241 3103 USA T 412 220 0237 Customer Care F 412 220 0236 www mosebachresistors com OM X250S d...

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