Gruber Power Services offers Uninterruptible Power Supplies, Service on UPS Units, Electrical Surplus, and Batteries.

Input

• Voltage 208, 240, 480 or 600 VAC, 60 Hz,
3 or 4-Wire plus ground
• Voltage Range +10%, -25%
• Frequency Range 60 Hz ± 5%
• Current Limit 125% of full load
input current
• Current Walk-In 20 seconds to full load
• Surge Protection Sustains input surges
without damage, per criteria listed in ANSI
C62.41-1980 (IEEE 587)

Output

• Voltage 208, 240, 480 or 600 VAC, 60 Hz,
3 or 4-Wire plus ground
• Voltage Regulation ±1% for balanced load
• Voltage Unbalance ±1% for balanced load,
±2% for 50% unbalanced load, ±5% for 100%
unbalanced load
• Voltage Adjustment Range ±5%
• Frequency Regulation 60 Hz ±0.1%
• Load Power Factor Range 0.9 Leading
to 0.5 Lagging
• Power Rating Rated kVA at 0.8 lagging
power factor
• Harmonic Distortion 5% maximum
total for linear loads. 3% maximum for
single harmonics
• Phase Displacement 120° ±1° for balanced
load. 120° ±3° for unbalanced load.
• Transient Response ±1% for loss or return of input power. ±4%
for 20% step load or a manual transfer of 100% load. ±5% for 30%
step load. ±8% for 50% step load.
• Transient Recovery Time To within 1% of output voltage within
50 milliseconds
• Overload Capability 125% for 10 minutes. 150% for 30 seconds.
• Fault Clearing Current 300% subcycle

Environmental

• Operating Temperature 32-104° F (0-40° C) for UPS;
68-86° F (20-30° C) for battery
• Non-Operating Temperature -4°F to 158°F (-20°C to 70°C)
• For battery, check manufacturer’s recommendations
• Relative Humidity 0 to 95% non-condensing
• Altitude Up to 2000 meters. Derated for higher elevations
• Audible Noise Level 65 dBA measured at 1 meter from the UPS

Physical

• Cabinet NEMA Type 1 freestanding. Provided with casters
and leveling feet.
• Cooling Forced air. Redundant fans
• Cable Entry Top or bottom
• Access Front access only