Hubbell Switch LXi 1600 User Manual

Hubbell Industrial Controls, Inc.  
Manual Wound Rotor Motor Fire  
Suggested Specifications • January 1993  
LXi-1600  
The Manual Wound Rotor Motor Standpipe Fire  
Pump Control Panel shall be factory assembled,  
wired and tested, in accordance with the specific  
requirements of the Standpipe Rules, City of New  
York, Department of Buildings, Material & Equipment  
Acceptance Division.  
1- Main line manually operated circuit breaker, 3  
pole, 600 volt. The breaker shall permit normal  
starting without tripping and shall provide  
stalled rotor and short circuit protection per  
NFPA 20 requirements.  
The isolation disconnect switch and circuit  
breaker shall be mechanically interlocked to  
assure the circuit breaker "makes" and "breaks"  
the load.  
The controller shall be U.L. Listed & NYC Approved  
MEA Department.  
The controller shall be designed for manual starting  
and speed regulated and shall be of the reduced  
voltage secondary resistance type with five (5) steps  
of speed control for operating the wound rotor motor  
driving the Fire Pump.  
1- Primary line contactor that may be manually  
operated from the front of the enclosed in  
emergencies.  
1- Power available signal relay for remote alarm.  
All controller components, including circuit breaker  
and contactors, shall be front mounted, front wired  
and front accessible for maintenance. The minimum  
withstand rating of the controllers shall not be less  
than 100,000 Amps RMS Symmetrical at 200-480  
Volts, and 22,000 Amps RMS Symmetrical at 550-  
600 Volts.  
1- Auxiliary contact for pump running remote  
alarm.  
1- Phase failure/reversal monitor to sense loss of  
line power, loss of any one phase, phase re-  
versal, and undervoltage.  
The controller shall consist of sectionalized panels  
enclosed in a drip proof, free standing cabinet con-  
structed of not less than No. 12 gauge sheet metal.  
1- Surge suppression on input lines to protect  
against voltage transients.  
In the rear of the enclosure and accessible from the  
back of cabinet, shall be mounted edgewound,  
heavy duty speed regulating resistors having con-  
tinuous current ratings of 125% of F.L.C., the resis-  
tors shall be mounted in racks and insulated from  
ground.  
The rear of the enclosure shall be provided with  
ventilated removable cover plate and the front shall  
have a hinged door with 3 point catch and handle.  
On the front section of the cabinet, to be visible with  
the doors closed, there shall be mounted:  
1- AC Ammeter  
1- AC Voltmeter  
The controller shall be one complete unit provided  
with solderless connectors at line and load termi-  
nals. Size and types of feeder and load cables shall  
be as specified in the electrical specifications.  
1- Pilot light with white lens to indicate "Control  
Power Available"  
1- Pilot light with red lens to indicate "Pump Run-  
ning"  
The control panel shall be installed near the fire  
pump and motor with access space not less than 30  
inches allowed at the rear as per NFPA-20 require-  
ments.  
The controller shall include the following compo-  
nents mounted on panels within the cabinet:  
1- Manually operated motor rated isolating dis-  
connect switch, 3 pole, 600 volt.  
The controller shall be Bulletin LXi-1600 as manu-  
factured by Hubbell Industrial Controls, Inc.  
Hubbell Industrial Controls, Inc.  
A subsidiary of Hubbell Incorporated  
4301 Cheyenne Dr., Archdale, NC. 27262  
Telephone (336) 434-2800 • FAX (336) 434-2803  
 

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