PREMAX 3000VA Uninterruptible Power Supply (UPS) Specifications

This specification sheet outlines the expected electrical and physical characteristics for a high-capacity PREMAX 3000VA UPS, suitable for demanding workstation environments, small server clusters, and comprehensive home theater/network protection.

1. Power and Performance

Parameter	Specification	Notes
VA Rating	$3000\text{VA}$	Apparent Power
Watt Rating	$2400\text{W}$	True Power (Assumes $\text{PF}=0.8$)
UPS Topology	Line-Interactive with $\text{AVR}$	Provides voltage stabilization and high transfer efficiency.
Waveform (Battery Mode)	Simulated Sine Wave	Suitable for general use, but may not be ideal for $\text{PFC}$ power supplies.
Transfer Time	$2-6\text{ ms}$ (Typical)	The time required to switch to battery power.
AVR Function	Boost and Buck	Automatic Voltage Regulation to correct minor voltage fluctuations without using the battery.

2. Electrical Specifications

Input

Parameter	Specification
Nominal Input Voltage	$220\text{V}/230\text{V}/240\text{V}\text{ AC}$
Input Voltage Range	$170-270\text{V}\text{ AC}$ (Varies by load)
Nominal Input Frequency	$50\text{Hz}/60\text{Hz}$ (Auto-sensing)

Output

Parameter	Specification
Nominal Output Voltage	$230\text{V}\text{ AC}$
Output Voltage Regulation	$\pm 10\%$ on battery
Output Sockets	$4-6$ Standard or $\text{IEC C}13$ Sockets (plus $1-2$ surge-only sockets)

3. Battery and Runtime

Parameter	Specification (Typical)
DC Voltage	$36\text{V}\text{ DC}$ or $48\text{V}\text{ DC}$
Battery Type	Sealed Lead-Acid, Maintenance-Free ($\text{SLA}$), $12\text{V}/9\text{Ah}$ or $7\text{Ah}$
Typical Runtime ($\text{Half Load}$)	$5-8\text{ minutes}$
Typical Runtime ($\text{Full Load}$)	$1-3\text{ minutes}$
Recharge Time	$6-8$ hours to $90\%$ capacity after full discharge

4. Physical and Communication

Feature	Description / Value
Form Factor	Compact Desktop / Cube-Style Tower
Display	High-resolution $\text{LCD}$ (Shows input/output voltage, load level, battery capacity)
Dimensions ($\text{H}\times \text{W}\times \text{D}$)	$\approx 320\times 190\times 440\text{ mm}$ (Varies)
Weight	$\approx 25-30\text{ kg}$
Communication Port	USB Port and $\text{RJ}45/\text{RJ}11$ Surge Protection
Alarm	Low battery, overload, fault condition.