Rackmount Telecom
DC-AC Inverters

These rackmount telecom DC-AC power inverters provide seamless back-up power for AC powered communications equipment from the site’s 48V or 24V DC battery system. A fast-acting transfer switch ensures voice and data transmissions remain uninterrupted in the event of a power grid failure or if the site utility power is disconnected for maintenance and upgrade purposes. Built in a 2RU case adaptable for 19” and 23” rack installations.


  • Pure sine wave AC output powers telecom equipment without performance degradation
  • Continuous duty rated – full output wattage maintained even during extended power outages
  • 1000 VA and 2000 VA models available – easily cascaded for N+1 redundancy, providing maximum reliability
    required by data centers
  • Low EMI and RFI interference characteristics
  • User-friendly Status and Diagnostic LCD/LED displays
  • Utility bypass function with fast load transfer switch
  • Remote Power Management optional via RS-232 port
  • Optional SNMP card
  • Numerous circuit and load protections – over-current, over- temp, overload, reverse polarity, high/low battery
  • Form C alarm contacts for monitoring AC “Fault” and “DC Abnormal” conditions
  • Adapts for 19” or 23” racks; occupies only 2 RU (3.5”)
  • UL and cUL listed, CE marked, and RoHS Compliant

Specifications: Rackmount Telecom Inverters – 2RU Series

Model DC Input AC Output Weight(lbs.)
Voltage Amps Voltage KVA Watts
24-1000RM 20-30 50 115 VAC, 60 Hz. 1 KVA 800 15.4
48-1000RM 40-60 25 115 VAC, 60 Hz. 1 KVA 800 15.4
48-1000IRM† 40-60 25 230 VAC, 50 Hz.** 1 KVA 800 15.4
48-2000RM 40-60 50 115 VAC, 60 Hz. 2 KVA 1600 17.6
48-2000IRM† 40-60 50 230 VAC, 50 Hz.** 2 KVA 1600 17.6
125-1000RM† 100-150 10 115 VAC, 60 Hz. 1 KVA 800 15.4
125-2000RM† 100-150 20 115 VAC, 60 Hz. 2 KVA 1600 17.6

*I series models use IEC type AC output connector
** Adjustable for 60 Hz.
† Special Order – Contact Factory

AC Characteristics

Voltage: 100/110/115/120 VAC (selectable using RS-232 port and additional software); Factory set at 115 VAC
Frequency: 60 Hz. Standard, 50 Hz. Optional
Regulation: +/- 2%
Wave Form: Pure Sine
Outlets Rear Panel:
24-1000RM and 48-1000RM – (4 ea.) NEMA 5-15R
48-2000RM – (4 ea.) NEMA 5-20R
Total Harmonic Distortion: 6% 120V/100% linear load 4% 120V/100% SPS load
Transfer Time: <4 ms.


LED: Inverter On, Overload, DC Abnormal, Fault
LCD: Inverter On, Output Voltage and Frequency, Input Voltage, Load Percentage, DC Voltage, System Model,
Internal Environment Temperature, Utility Status, Short Circuit, Over Temperature
Operating Temperature: 0° to 45° C
Cooling: Forced air, front-to-back
Humidity: 0-90% relative humidity
Acoustic Noise: 46 dBA @ 1 M


Form C (Dry Contact) terminals (two sets – “DC ABNORMAL” and “FAULT”)

Communication Interface

RS-232 port, serial cable included

Protection Features

DC Input Fuse and Breaker, AC Input Breaker, Output Breaker, Short Circuit, Overload, Over
Temperature, Over/Under Output Voltage, Over/Under Input Voltage, Fan Failure Detection


UL and cUL listed, CE marked, and RoHS Compliant


Dimensions: 17.4”W x 3.5”H x 11.6”D
Mounting: 19” or 23” Rack
Weight: 24-1000RM and 48-1000RM – 15.4 Lbs., 48-2000RM – 17.6 Lbs.

Rear View



Remote monitor via RS 232 port. SNMP card required.