Hubbell Industrial Controls, Inc. 

4301 Cheyenne Drive, Archdale, NC  27263 

Phone (336) 434-2800  •  Fax (336) 434-2803 

LXi-2300 Autotransformer with ATS

LX-2300 Autotransformer


Hubbell Fire Pump Motor Controllers with Automatic Transfer Switches (ATS) are designed to comply with the latest standard of the National Fire Protection Association for the installation and operation of centrifugal Fire Pumps (NFPA-20).

Model LXi-2300 is a combined automatic and manual reduced voltage autotransformer fire pump controller applied where the capacity of the power source does not permit full voltage starting of the motor. The controller is used with standard three (3) lead squirrel cage motors. A heavy-duty autotransformer is supplied with standard taps at 50%, 65% and 80% to reduce the starting voltage to the motor. The autotransformer is factory wired to the 65% taps unless otherwise specified when ordered.

The starting inrush current drawn from the power source is reduced to approximately 25% of normal when using the 50% tap, 42% of normal on the 65% tap, and 64% of normal on the 80% tap.

An adjustable timing relay is provided to control the time between reduced voltage start and full voltage run. A manual "emergency run" operator is supplied for emergency starting. When the operator is pushed "On" the motor starts and runs at full voltage until the operator is pushed "Off".

Drawings and Publications

Volts HP Range Dimensions Schematic Field
200-208 15-60 23CE0011 23CS0011 23CF0011 Pub 193C
Pub 201 ATS
220-240 15-60
380-415 15-100
440-480 15-125
200-208 75-150 23CE0021 23CS0011 23CF0011 Pub 193C
Pub 201 ATS
220-240 75-200
380-415 150-300
440-480 200-400

Catalog Literature

LXi-2300 Specifications
July 2002
Brochure 6100M
May 2004
Price List 6100M
October 2002
Emergency Ratings
LX-450 Schematic
LX-450 Field Connection
LXi-450 Manual

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