Hubbell LX-450 - Manuals

Hubbell LX-450 – Manual in PDF format online.

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Manual

Manual Hubbell LX-450

Summary

Page 2 - Transfer Switch; Table of Contents

Transfer Switch Page 2 of 16 Pages Table of Contents 1.0 Introduction....................................................................................................................................32.0 Specifications and Certifications ...............................................................

Page 3 - Block Diagram of automatic transfer switch showing one phase

Transfer Switch Page 3 of 16 Pages 1.0 Introduction Hubbell’s non-automatic, LX-440, and automatic, LX-450, transfer switches are available in 2, 3, and 4pole models with ampere ratings of 100 to 1250 A. The transfer switches are available as open type orin an individual cabinet. The automatic trans...

Page 4 - Specifications and Certifications; Specifications

Transfer Switch Page 4 of 16 Pages 2.0 Specifications and Certifications Specifications Switch Mechanism Solenoid Actuation Short Circuit Ratings of Transfer Switches 100 A200 A260, 400, 600 A800, 1000, 1250 A RMS Symmetrical Amperes 42,00050,000 When protected by 65,000 a circuit breaker. 85,000 Co...

Page 5 - Terminal Connections

Transfer Switch Page 5 of 16 Pages Receiving and Storage After receiving the transfer switch inspect the cabinet for any damage that may have occurred duringshipping. If the transfer switch is not installed immediately, cover the cabinet and store in a dry area.Condensation can corrode the contacts ...

Page 6 - Transfer to Emergency Source; NORMAL OVERRIDE ON MOMENTARY OUTAGE; EMERGENCY OVERRIDE ON MOMENTARY OUTAGE; Retransfer to Normal Source; RETRANSFER TO THE NORMAL

Transfer Switch Page 6 of 16 Pages The Hubbell Transfer Control Module, LX-301, controls transfer to the emergency source and retransferto the normal source. The LX-440 non-automatic transfer switch does not come with a Control Module.A selector switch initiates transfer and retransfer. Automatic Op...

Page 7 - Standard and Optional Features; Standard Features; Indicating lights; LED Indicators; Time Delays

Transfer Switch Page 7 of 16 Pages 5.0 Standard and Optional Features Standard Features The following standard features are provided with the LX-450 automatic transfer switch. Indicating lights NORMAL (PL1, Green) When the transfer switch is in the normal position (normal source contacts closed) aux...

Page 8 - The; Optional Features; RETRANSFER TO NORMAL SOURCE

Transfer Switch Page 8 of 16 Pages Auxiliary Contacts Auxiliary contacts TSNa3, -a4 and TSEa3, -a4 are available for remote alarms, pilot lights, or otherapplications. These contacts are pre-wired for customer connections to PTB1-7 through PTB1-12. Thecontacts are rated at 10 A, 125/250 VAC. Manual ...

Page 9 - Plant Exerciser; Selector Switch; OFF

Transfer Switch Page 9 of 16 Pages Plant Exerciser (B1–B2) The Plant Exerciser option is a seven-day clock that provides for automatic test operation of thegenerator set at pre-selected intervals. The clock is powered by a fused circuit from control transformerXFMR3. The Plant Exerciser option is us...

Page 10 - burns, or death may result from high voltage.; Check all wiring connections.; Transfer Test; Manual Test; ) insert a screw driver in the

Transfer Switch Page 10 of 16 Pages 6.0 Maintenance D ANGER: Do not touch the transfer switch until ALL power is disconnected. Shocks, burns, or death may result from high voltage. C AUTION: Only personnel who are familiar with the power distribution system and this manual should be allowed to inspe...

Page 11 - Auto Test; Troubleshooting; DANGER; servicing to prevent shock or accident hazard.; Settings

Transfer Switch Page 11 of 16 Pages Auto Test The following procedure is an example for testing the automatic transfer switch. A procedure should bewritten by qualified personnel that is applicable to the facility, the transfer switch options, and the powerdistribution system. Refer to job specifica...

Page 12 - Table 6-1 Troubleshooting; Transfer Control Relay Board

Transfer Switch Page 12 of 16 Pages Time Delay function Typical factory setting Adjustment Range NORMAL OVER-RIDE ONMONETARY OUTAGE 1 second, engine generator3 seconds, utility 0.5 to 6 seconds RETRANSFER TO NORMAL 30 minutes 2 to 30 minutes ENGINE RUNNING UNLOADED 5 minutes 2 to 30 minutes EMERGENC...

Page 13 - Components; Transfer Control Relay; Assembly versions; Includes timer and MDS.

Transfer Switch Page 13 of 16 Pages Components 1. Transfer Control Relay Controls whether the automatic transfer switch is in the normal or the emergency position. De-energized - automatic transfer switch in Normal position Energized - automatic transfer switch in Emergency position 2. Timer circuit...

Page 14 - Plant Exerciser Timer; Set the time; Programming; open circle; Day; open circle with dot

Transfer Switch Page 14 of 16 Pages 8.0 Plant Exerciser Timer Set the time 1) Press the Res. (reset) button to clear the memory 2) Press and hold the (time/run mode) button while setting the time a) Press the h button to set the hours b) Press the m button to set the minutes c) Repeatedly press th...

Page 15 - ON

Transfer Switch Page 15 of 16 Pages b) Press Prog. a second time to see the retransfer time. c) Press Prog. a third time to see the number of additional program times Fr18 3) To manually override the Timer press the button a) Pressing once transfers the Timer contacts—output ON (starts the engine ) ...

Page 16 - Spare Parts and Drawing References; Spare Parts; Drawing References

Transfer Switch Page 16 of 16 Pages 9.0 Spare Parts and Drawing References The following lists contain part numbers and drawing numbers for identification and for ordering. Ifmaterials are needed from Hubbell, contact the local Hubbell representative to request the desiredinformation or parts. Spare...