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particular application.
WARNING!
Hazardous voltages in excess of 280 VRMS, 600V peak may be present when
covers are removed. Qualified personnel must use extreme caution when
servicing this equipment. Circuit boards, test points, and output voltages may
be floating above (below) chassis ground.
Installation and service must be performed by qualified personnel who are aware of dealing with attendant
hazards. This includes such simple tasks as fuse verification.
Ensure that the AC power line ground is connected properly to the SW Series unit input connector or
chassis. Similarly, other power ground lines including those to application and maintenance
equipment must be grounded properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting the
input/output power cables.
During normal operation, the operator does not have access to hazardous voltages within the
chassis. However, depending on the user’s application configuration, HIGH VOLTAGES
HAZARDOUS TO HUMAN SAFETY may be generated normally on the output terminals.
Ensure that the output power lines are labeled properly as to the safety hazards and that any
inadvertent contact with hazardous voltages is eliminated. To guard against risk of electrical shock during
open cover checks, do not touch any portion of the electrical circuits. Even when the power is off, capacitors
can retain an electrical charge. Use safety glasses during open cover checks to avoid personal injury by any
sudden failure of a component. Due to filtering, the unit has high leakage current to the chassis. Therefore, it
is essential to operate this unit with a safety ground.
Some circuits are live even with the front panel switch turned off. Service, fuse verification, and
connection of wiring to the chassis must be accomplished at least five minutes after power has been
removed via external means; all circuits and/or terminals to be touched must be safety grounded to
the chassis.
After the unit has been operating for some time, the metal near the rear of the unit may be hot enough to
cause injury. Let the unit cool before handling.
Qualified service personnel need to be aware that some heat sinks are not at high potential, but at ground.
CAUTION!
380V 3-phase input power systems (4–wire) must have a neutral connection.
(For units built before June 2004: The Neutral must not be switched. Apply
Neutral before phase voltage or serious damage to the equipment may result.)
For safe operation, it is required that output power neutral be connected to chassis ground. The SW system
is shipped with a ground wire between power neutral and chassis ground.
These operating instructions form an integral part of the equipment and must be available to the operating
personnel at all times. All the safety instructions and advice notes are to be followed.
Neither Elgar, San Diego, California, USA, nor any of the subsidiary sales organizations can accept any
responsibility for personal, material or consequential injury, loss or damage that results from improper use of
the equipment and accessories.
i
SAFETY SYMBOLS
CAUTION
Risk of Electrical Shock
CAUTION
Refer to Accompanying Documents
Off (Supply)
Standby (Supply)
On (Supply)
Protective Conductor Terminal
Fuse
Direct Current (DC)
Alternating
Three–Phase
Earth (Ground) Terminal
Chassis Ground
Current (AC)
Alternating Current
ii
ELGAR 90-DAY LIMITED WARRANTY
Elgar Electronics Corporation (hereinafter referred to as Elgar) warrants its software as
follows:
1. The media is free from defects.
2. The original Buyer is entitled to a free upgrade when released within 90 days of
purchase.
3. The original Buyer shall receive a full refund if not satisfied with the software within
90 days of purchase.
This warranty is effective for 90 days from the date of shipment of the product to the
original Buyer. Liability of Elgar under this warranty shall exist provided that:
• Elgar is promptly notified of defects by the Buyer and that notification occurs within the
warranty period.
• The Buyer receives a Return To Vendor (RTV) number from Elgar's Repair Department
prior to the return of the product to Elgar for repair, phone 800-73-ELGAR
(800-733-5427), ext. 2419.
This warranty is exclusive and in lieu of all other warranties, expressed or implied, including,
but not limited to, implied warranties of merchantability and fitness of the product to a
particular purpose. Elgar, its agents, or representatives shall in no circumstance be liable for
any direct, indirect, special, penal, or consequential loss or damage of any nature resulting
　
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