3000VA Extended Temperature UPS – DOUBLE CONVERSION

P90HTg-3000 3kVA – 3000VA Extended Temperature UPS

The P90HT-3000 provides 3kVA of clean and stable electrical battery backup power to mission-critical equipment during and after a power loss or disruption events.  Extended temperature operation for harsh environment applications.

  • Extended Temperature Operation (-20C to 50C)
  • 0.9 output power factor
  • 98% efficient operation
  • Extended battery packs available
  • Multiple communications capability
  • Auto restart
  • Programmable outlets
  • UL, cUL, RoHS
  • Purchase with confidence!  The P90HTg-3000 UPS is backed by an industry leading 3-year product warranty and a $50,000 Load Protection Policy.
  • For questions or quotations please contact us via Chat, Phone or email at sales@republicpowersystems.com
SKU: P90HTg-3000 Categories: ,

Product description

Features of the P90HTg-3000 3000VA Extended Temperature UPS include:

The P90HTg-3000 is a 3000VA Extended Temperature UPS that delivers continuous, pure sine wave AC power to critical electrical equipment.  The P90HTg-3000 provides tower, rack, and wall mount configuration options.  It protects your equipment from blackouts, brownouts, sags, surges, and noise interference. The P90HTg-3000 offers the lowest total cost of ownership by cutting energy costs and lowering heat output.

  • CAPACITY: 3 kVA / 3000 VA / 2400 Watts                                    CLICK HERE TO CALCULATE YOUR BACKUP POWER REQUIREMENTS 
  • UPS TOPOLOGY: Double Conversion Online
  • VOLTAGE INPUT RANGE: Single Phase, 110–300VAC (L6-20P Connector)
  • FREQUENCY: 50/60Hz ± 0.5Hz
  • VOLTAGE OUTPUT: 208/220/230/240VAC
  • EFFICIENCY: Up to 98% ECO mode and 90% online mode
  • RUNTIMES: 3min. @ 100% and 8min. @ 50%
  • OUTPUT OUTLETS: (1) IEC C19 + (6) IEC C13 (Programmable)
  • MOUNTING OPTIONS: Tower, wall (2U units), 2-post and 4-post rack mounting configurations available
  • SCALABLE: Extended battery run-times with optional matching battery modules
  • COMMUNICATIONS INTERFACE: RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus)
  • WARRANTY: 3 years electronics, 3 years battery warranty, optional 5 year warranty available (USA and Canada)
  • OPTIONS: 5 year extended warranty, bypass distribution, power distribution, 4 post rail kit, 2-post shelf kit, wall mount bracket

Benefits of a P90HTg-3000 UPS include:

12 YEAR BATTERY SERVICE LIFE: At 25°C ambient temperatures conditions

0.9 OUTPUT POWER FACTOR: P90HTg systems provide more real capacity for high density loads

98% EFFICIENT OPERATION: High efficiency ECO mode lowers energy consumption

SMART LCD DISPLAY: Vital monitoring and precise information from the front panel

FREQUENCY CONVERTER: The P90HTg-3000 can be programmed to convert from 50Hz to 60Hz or 60Hz to 50Hz

LOAD SHEDDING CAPABILITIES: Maximize up-time for critical loads and equipment by shedding less critical loads

EXTENDED BATTERY RUN-TIMES: Optional external battery packs for extended battery backup run-times

NETWORK MANAGEMENT CARD:  An optional network card allows for the P90HTg-3000 UPS to be network manageable for monitoring and control

MAINTENANCE BYPASS: An optional bypass module enables the P90HTg-3000 to be replaced or serviced without interruption of power to critical loads

SURGE PROTECTION: 800J of surge protection

$50,000 LOAD PROTECTION POLICY: protection against damaged connected equipment

Power Protection provided by the P90HTg-3000 Online UPS:

  • Power problems such as electrical surges and sags
  • Total loss of electrical power or hard power “re-boots”
  • Unstable incoming power caused from outdated or faulty electrical wiring and or power distribution equipment
  • Harmonic interference from neighboring “high power draw” equipment
  • Severe weather events such as lighting storms, ice and snow storms and downed power lines
  • Unstable power generation from local utilities or on-site generation

Click here to learn more about the TOP 10 POWER ISSUES and UPS power protection features

Wide Power Input

The P90HTg-3000 3kVA extended temperature UPS supports incoming wide AC power input. The automatic voltage regulator (AVR) protects the UPS and connected equipment from adverse voltage conditions. This wide AC input capability can offer sag and surge protection without engaging the backup batteries of the UPS. This will reduce the stress on connected critical equipment and extends the battery life of the UPS.

Double Conversion Topology
Double Conversion Technology

        Double Conversion Technology

The P90HT-3000 is a 3000VA true online double conversion uninterruptible power supply providing the ultimate in clean and stable electrical power. Incoming AC power is fed to the UPS’ rectifier converting it from AC to DC power. The converted DC power routes to a battery charging circuit and to the inverter for conversion back to AC power. The resulting “double converted” electrical power is pure sine wave  output providing near perfect electrical power for connected equipment.

To ensure 7/24 up time the double conversion UPS topology utilizes a static “bypass switch” within its circuity design. If the P90HTg-3000 2400W extended temperature UPS 120V detects a system failure, audible alarms will sound as the bypass switch is engages. This routes power around the failed UPS and ensures critical load power to target equipment.  This very important  feature allows for 100% up time for critical equipment while the UPS can be repaired or replaced.

In the event of total power failure, the UPS will power off the rectifier when the loss of power is detected. Under battery mode the internal backup batteries will continue to supply DC power to the inverter. There is no transfer time as the transition to battery power is instantaneous. This feature provides true uninterruptible power to mission critical equipment.

Technical Specifications



Rated Power Capacity (Apparent/Active)

3000VA / 2400W

Voltage Range


Frequency Range

50/60Hz auto sensing

Surge protection


Rated Voltage (Output)


Wave Form Type

Pure sine wave, zero transfer time

Rated Frequency

50/60Hz ± 0.5Hz

Efficiency (Maximum%)

98% ECO mode, 90% online mode

Crest factor


Overload Capacity

125% 2 min; 150% 10 sec; > 150% 1 sec

Battery Type

Sealed, maintenance-free lead acid

Unit Size (HxWxD)

17.2 x 23.6 x 3.5 in

Unit Weight

47 lbs

Cord Length

8 ft, C19 to L6-20P

Output Connection

(1) IEC C19 + (6) IEC C13

Operating Temperature

-4–122°F (-20–50°C)

Acoustic Noise

< 50dBA

Operating Elevation

11,500 ft above sea level




RS-232, USB, EPO, intelligent slot for optional cards (Web/SNMP, Relay/dry contact, Modbus)

External Battery Module


External Battery Module Size (HxWxD)

17.2 x 23.6 x 3.5 in

External Battery Module Weight

99.2 lbs


3 years battery warranty (USA and Canada)
3 years electronics

Whats in the box

Software CD, horizontal brackets, tower pedestals, 16 in battery cable kit

Available Options

Bypass distribution (XBDM), power distribution (XPDU), 4-post rail kit, 2-post shelf kit

Weight47 lbs
Dimensions17.2 × 23.6 × 3.5 in



Estimated Run-Time

Battery Run Time Graph