Aims Power 2000 Watt Pure Sine Power Inverter NEGATIVE 48 Volt Rack Mount Inverter To 120 Volt AC – 2U (-48V) - PRM2KWN48120S

Aims Power 2000 Watt Pure Sine Power Inverter NEGATIVE 48 Volt Rack Mount Inverter To 120 Volt AC – 2U (-48V) - PRM2KWN48120S

Ensure uninterrupted power with our advanced NEGATIVE 48V, 2U rackmount inverter, designed for telecom and data centers. Ideal for providing backup power to your essential equipment, this inverter generates 2000W of high-quality pure sine power at a stable 120Vac output. Thanks to the built-in 20 Amp transfer switch with a typical transfer time of less than 20ms, power is maintained seamlessly to your equipment. When city/utility power is available, it bypasses to provide consistent power. During outages, the inverter automatically switches to the backup DC power source, supplying power as long as the DC power supply provides enough voltage.

Monitoring is a breeze with the RS485 communication port, which offers real-time insights into DC input voltage, AC output voltage, frequency, and amps. Unmatched reliability, effortless integration, and consistent power supply ensure our rackmount inverter is the perfect solution for any setting where uninterrupted power is essential.

Features

• 2000W continuous power, NEGATIVE 48 volt to 120 volt
• Pure sine wave
• 2U Rackmount
• FCC Class B
• RS485 Communication Port – Monitored from a PC
• Input dc voltage
• Output ac voltage
• Frequency
• AC Current
• Digital status display – Toggle
• Input dc voltage
• Output ac voltage
• Frequency
• AC Current
• Dual AC receptacle
• On/off switch
• Utility power bypass
• Automatic transfer switch
• Over temperature indicator
• Overload protection
• Low battery voltage warning/shutdown
• High input voltage protection with automatic shutdown
• Overload indicator
• Short circuit protection
• Thermal and load based fan
• AC output short circuit protection
• Instruction manual
• Free lifetime tech support

Specifications

• Continuous output power: 2000 Watts
• Surge power capability (peak power): 6000 Watts
• DC input / operating voltage: 41.0 to 60.0 Volts
• Output voltage: 120 Volts ac
• Output wave form: pure sine wave
• Output frequency: 60 Hz
• Low battery voltage shutdown: 40.6 Volts
• Low battery voltage recovery: 42.7 Volts
• Low battery voltage warning/shutdown
• No load power consumption: Fan Off 0.27A dc – Fan On 0.32A dc
• Frequency: 60hz
• Efficiency: 91%
• Over temperature protection low: -4 F ± 5  F
• Over temperature protection high: 172 F ± 5  F
• Operating temperature recovery: 136  F (automatic shutdown) ± 5  F
• AC output socket type: dual Type 2 -3 prong
• RS232 Communication Port
• AC output and bypass protected: 10A Breaker
• FCC Class B – F690501/RF-EMC000377(H)
• Unit Weight: 21.5 lbs shipped 28 lbs
• Unit Size W x D x H: 16.5 x 17.5 x 3.75 inches
• Battery terminal size:  Blade style .25″

What our Experts Think

• The AIMS Power PRM2KWN48120S is a 2,000W pure sine wave 2U rack-mount inverter designed for -48V telecom and data-center DC power systems, delivering stable 120V AC output for critical equipment.
• Built for telecom, networking, and server rack environments, it ensures uninterrupted operation of sensitive infrastructure during grid loss or DC power switching events.
• Provides 2,000W continuous power with ~4,000W surge capability, supporting short startup loads from connected AC equipment.
• Features an integrated automatic transfer switch (~16–20ms typical transfer time) for seamless switching between DC backup and utility bypass power.
• Designed for -48V negative DC architectures, the standard in telecom power systems, improving reliability and simplifying centralized battery backup design.
• Includes pure sine wave output, ensuring compatibility with sensitive electronics like servers, routers, and industrial control systems.
• Rack-mount 2U industrial chassis makes it suitable for professional installations in server rooms, network closets, and industrial control racks.
• Supports remote monitoring and communications (RS232 interface) for system diagnostics and real-time performance tracking.

                   
Q&A      

Q: What is the AIMS Power PRM2KWN48120S 2000 Watt Negative 48V Rack Mount Inverter?
A: The AIMS Power PRM2KWN48120S is a 2000W industrial-grade pure sine wave rack-mount inverter that converts -48V DC (negative 48V telecom power systems) into clean 120V AC power for telecom, data centers, and critical backup applications.

Q: What does “negative 48V” mean?
A: It is designed for telecom-standard -48V DC systems, where the battery bank is grounded on the positive side and the negative rail carries the DC voltage—common in servers, networking, and telecom infrastructure.

Q: How much power does it deliver?
A: It provides 2000 watts of continuous power with around 4000 watts surge capacity for short-duration startup loads.

Q: What type of output does it produce?
A: It delivers a pure sine wave 120V AC output, ensuring stable and clean power suitable for sensitive IT and communication equipment.

Q: Does it support automatic power switching?
A: Yes. It includes an automatic transfer switch (~20A) that seamlessly switches between utility AC power and DC backup with transfer times typically under ~20ms.

Q: What monitoring and communication features does it have?
A: It includes an RS485 communication port for real-time monitoring of input voltage, output voltage, frequency, and load status from a PC or control system.

Q: What are its key features?
A: It offers rack-mount 2U design, bypass mode for utility power, digital status display, cooling fans, and built-in protections for overload, over-temperature, short circuit, and voltage faults.

Q: Where is it typically used?
A: It is used in telecom rooms, data centers, server racks, and industrial backup systems where continuous, reliable AC power is required from -48V DC battery infrastructure.

Q: Why choose this inverter?
A: It provides enterprise-grade reliability, seamless backup switching, and standardized rack integration, making it ideal for mission-critical infrastructure power continuity.

             
Maintenance Tips    

• Install in a cool, forced-air rack environment; this unit is designed for enclosed cabinets but still needs steady airflow.
• Keep front/rear rack vents clean—dust buildup is the #1 cause of thermal derating in telecom inverters.
• Inspect and tighten -48V DC bus connections regularly (loose lugs = heat + voltage drop + inverter alarms).
• Ensure correct negative 48V grounding polarity—reversed or floating grounds can trigger faults or damage.
• Maintain a stable -41V to -60V DC input range (outside this range causes shutdown or protection mode).
• Periodically test automatic transfer function (<20ms switch) to confirm UPS reliability.
• Check RS485 monitoring output for voltage, load, and temperature drift trends before failures occur.
• Avoid running continuously at full 2000W load in hot rack conditions—leave headroom for longevity.
• Inspect internal/external fusing and DC breakers for heat discoloration or aging.
• Clean airflow paths (don’t block rack front intake or rear exhaust).