Aims Power 1000 Watt Pure Sine Power Inverter NEGATIVE 48V Rack Mount Power Inverter To 120 Volt AC – 1U (-48V) - PRM1KWN48120S

Aims Power 1000 Watt Pure Sine Power Inverter NEGATIVE 48V Rack Mount Power Inverter To 120 Volt AC – 1U (-48V) - PRM1KWN48120S

Ensure uninterrupted power with our advanced NEGATIVE 48V, 1U rackmount inverter, designed for telecom and data centers. Ideal for providing backup power to your essential equipment, this inverter generates 1000W of high-quality pure sine power at a stable 120Vac output. Thanks to the built-in 10 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 RS232 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

• 1000W continuous power, NEGATIVE 48 volt to 120 volt
• Pure sine wave
• 1U Rackmount
• FCC Class B
• RS232 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

• Continuos output power: 1000 Watts
• Surge power capability (peak power): 2000 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: 11.5 lbs shipped 14 lbs
• Unit Size W x D x H: 16.5 x 14 x 1.7 inches – 2 inches with bracket
• Battery terminal size: .25″

What our Experts Think      

• The AIMS Power PRM1KWN48120S is a 1,000W industrial 1U rack-mount pure sine wave inverter designed for -48V telecom DC systems, delivering stable 120V AC output for critical equipment.
• Provides 1kW continuous output with ~2kW surge capacity, suitable for short startup loads in networking, telecom, and control systems.
• Built for -48V negative DC architecture, the standard used in telecom and data-center power distribution for centralized battery backup systems.
• Includes an integrated automatic transfer switch (<20ms typical transfer time) for seamless switching between DC backup and utility bypass power.
• Designed in a compact 1U rack chassis, making it ideal for server racks, telecom closets, and industrial control cabinets.
• Produces pure sine wave output, ensuring compatibility with sensitive electronics like routers, switches, and monitoring systems.
• Supports RS232 monitoring for real-time system diagnostics (voltage, load, frequency, status) for infrastructure management.
• Offers ~91% efficiency, balancing low heat output with reliable continuous operation in rack environments.

             
Q&A  

Q: What is the AIMS Power PRM1KWN48120S 1000 Watt Negative 48V Rack Mount Inverter?
A: The AIMS Power PRM1KWN48120S is a 1U rack-mount, industrial-grade pure sine wave inverter that converts -48V DC telecom battery power into 120V AC output, designed for telecom, data centers, and critical backup power systems.

Q: How much power does it deliver?
A: It provides 1000W continuous power with approximately 2000W surge capacity, suitable for networking equipment, servers, and small critical loads.

Q: What does “-48V (negative 48 volt)” mean?
A: It is designed for standard telecom power systems where -48V DC grounding architecture is used, common in server rooms and communication infrastructure.

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

Q: Does it support automatic switching?
A: Yes. It includes a built-in automatic transfer switch (≤20ms typical transfer time) that switches between utility AC and DC backup power seamlessly.

Q: What monitoring features does it include?
A: It provides RS232 communication and digital display monitoring, showing real-time input/output voltage, frequency, and load status for system control.

Q: What protections are built in?
A: It includes overload, short-circuit, over-temperature, and low/high voltage shutdown protection to safeguard both the inverter and connected equipment.

Q: Where is it typically used?
A: It is commonly used in telecom racks, data centers, servers, networking closets, and critical backup systems where uninterrupted AC power is required.

Q: Why choose this inverter?
A: It offers enterprise-grade rack integration, fast transfer switching, and reliable 48V DC compatibility, making it ideal for mission-critical infrastructure power continuity.

                 
Maintenance Tips  

• Install in a properly cooled rack cabinet with front-to-back airflow; thermal buildup is the main cause of reduced reliability in 1U systems.
• Keep rack vents, intake filters, and rear exhaust paths clean to prevent fan overwork and overheating alarms.
• Regularly inspect and tighten -48V DC bus connections (PDU, battery plant, or rectifier feeds)—even small resistance causes heat in telecom systems.
• Maintain correct -41V to -60V DC input range; out-of-range voltage triggers shutdown or alarm states.
• Ensure proper negative-ground polarity and bonding; incorrect grounding can cause faults or communication issues.
• Periodically test the automatic transfer switch (<20ms) to confirm uninterrupted UPS backup behavior.
• Monitor via RS232 (if used) for voltage, load, and temperature trends to detect early degradation.
• Avoid sustained operation at full 1000W load in hot rack environments; leave headroom for thermal stability.
• Check internal fan operation and noise changes—fan failure is a common early warning sign.
• Inspect AC output terminals and rack PDU wiring for looseness or discoloration after outages or maintenance cycles.