Protection

DC Input:DC fuse and battery charger overvoltage limit network.

Output Protection: The ferroresonant transformer inherently limits current and provides overload protection. FERRUPS has high AC and low AC output voltage alarms, as well as an overload alarm. If the AC output voltage falls below the low AC output voltage alarm setpoint, the unit will alarm after 5 seconds. If the AC output voltage falls below the low AC output shutdown setpoint, the unit will alarm and shut down.

Batteries and Battery Charger

Standard batteries are sealed, gas recombinant, and lead-acid, especially designed for UPS use.

2 kVA to 7.5 kVA: Nominal battery voltage is 48 VDC. The standard battery charger is rated at 10 amperes at 48 VDC.

Optional battery chargers at higher current ratings are available. Call the nearest Best Power office for more information.

Agency Listings and Compliance

60 Hz Models: UL and cUL listed, NOM certified. 2-3 kVA soft-wired (plug-in) models comply with FCC Class B and ICES Class B. Hard-wired 2-3 kVA models and all 4.5-7.5 kVA models comply with FCC Class A and ICES Class A.

50 Hz Models: TÜV certified, CE. 2-3 kV A models comply with EN 50091-2 Class B. 4.5-7.5 kVA models comply with EN 50091-2 Class A.

1000 Warranty

LIMITED TWO YEAR WARRANTY

Standard Warranty For All Purchases

BEST POWER, a division of General Signal Power Systems, Inc. (hereinafter called BEST POWER) warrants that each product sold by BEST POWER is compatible with existing commercially available computer equipment with enclosed power supplies and is free from defects in materials and workmanship under normal use and service. This warranty is applicable only to the initial retail purchaser (PURCHASER), and is not transferable. The duration of this warranty is two (2) years from the date of the first retail sale or the date of delivery to the PURCHASER, whichever occurs first, subject to the following conditions.

If the PURCHASER discovers within the duration of this warranty a failure of the product to perform compatibly with presently existing computer equipment or a defect in material or workmanship, the PURCHASER must promptly notify BEST POWER in writing within the duration of the warranty or not later than one month after expiration of the warranty. BEST POWER’s obligation under this warranty is limited to the replacement or repair, subject to the conditions specified below, of such product returned intact to BEST POWER which shall appear to BEST POWER, upon inspection, to have been either

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