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The AIMS Power 2000 Watt Negative 48 Volt Rack Mount Pure Sine Inverter converts -48V DC battery power into 120V AC pure sine wave power in a 2U rack mount chassis. It delivers 2000 watts continuous and 4000 watts surge, with a built-in 20A automatic transfer switch, two 15A outlets, an AC terminal block for hardwiring and an RS485 communication port.
AIMS designed it for telecom networks, server racks and data center infrastructure that run on a negative 48 VDC battery system. When utility power is available, the inverter passes it through to connected equipment. During an outage, the transfer switch moves the load to battery power in under 20 milliseconds, so networking gear, telecom hardware and monitoring systems keep running.
A digital signal processor (DSP) generates 120V AC pure sine wave power from two 1 kW sections working in parallel. AIMS lists total harmonic distortion of 1.2% at 1000W, a maximum efficiency of 93% and a continuous efficiency of 92%. Output runs at 60 Hz, and a front panel switch selects 60 Hz or 50 Hz.
The internal relay transfer switch is rated 20A. In bypass mode, utility (city) power feeds your equipment. If utility power fails, the inverter switches to the -48V DC battery in under 20 milliseconds, and it returns to utility power automatically when power is restored. AIMS lists switching times of 6 ms on and 16 to 19 ms off (±2.5 ms).
Two 15A 3-prong outlets handle plug-in loads. A 3-pole AC terminal block (neutral, earth, hot) lets you connect equipment directly, which AIMS describes as the way to get the full output power of the inverter. Separate 20A breaker switches protect the output and the city power input.
The RS485 port lets a PC read DC input voltage, AC output voltage, AC current and frequency through an RS485 to USB converter. You can connect several inverters to one converter, each with its own RS485 ID from 1 to 99. On the front panel, an LED display and UP and DOWN buttons show output voltage, output current, frequency and input voltage.
The inverter shuts down at low battery voltage (-40.2V, returning at -42.5V) and at high input voltage (-61.0V, returning at -59.0V). It also protects against output overload, output short circuit and over temperature, and a red LED and alarm flag faults. Two 30A input fuses guard the DC side.
The 2U chassis measures 16.5 x 17.5 x 3.75 inches and weighs 21.5 lbs. Two front fans run automatically based on load and temperature and turn on at 104°F (40°C). If the inverter gets too hot, it shuts down and returns to operation at 136.4°F (58°C).
The 4000 watt surge rating is twice the continuous rating. AIMS says the inverter can hold that 200% surge for 500 milliseconds to start devices with quick startup surges.
Telecom sites. Power 120V AC telecom equipment from a -48V DC battery system, with automatic transfer when utility power drops.
Server racks and data centers. Back up servers, computers and network hardware in a standard equipment rack.
Network rooms. Keep routers, hubs and monitoring systems online and watch several inverters from one PC.
Audio-video equipment. AIMS lists audio-video equipment among the uses for this pure sine inverter.
A modified sine inverter produces a stepped waveform that some sensitive electronics don't handle well. This model's DSP-generated pure sine output, with 1.2% THD at 1000W, is designed for sensitive loads such as telecom equipment and computers.
An inverter without a transfer switch runs its loads from the battery all the time, so using utility power takes a separate device. This model passes utility power through and switches to battery in under 20 milliseconds on its own.
The two 15A outlets suit equipment with standard plugs. The terminal block suits a permanent, direct connection, and AIMS recommends having a professional electrician make that connection.
This inverter is for negative 48 VDC (-48V) battery systems with an operating range of 41 to 60 VDC negative. AIMS says to match the battery voltage to the inverter input voltage before connecting and not to reverse polarity. Keep continuous loads at or below 2000 watts. AIMS recommends keeping motor loads such as refrigerators and hand tools within 60% of maximum output, and running audio and video devices at 75% to 80% of listed capacity.
AIMS's minimum DC cable size for this 2000 watt model is 10 AWG, with a cable under 12 feet long. A longer run needs a larger gauge. The AC terminal block takes 10 AWG bare wire, and the earth connection uses 8 AWG. Keep the AC output cord to 50 feet or less. Allow plenty of ventilation, keep the inverter out of direct sunlight and away from moisture and flammable materials, and don't install it in a sealed area.
It's built for negative 48 VDC battery systems, with an operating range of 41 to 60 VDC negative. Low battery shutdown is -40.2V and high input voltage shutdown is -61.0V.
Connect the inverter's RS485 port to the PC through an RS485 to USB converter. AIMS lists 19200 bps, 8 data bits, no parity and no flow control. The PC acts as master and the inverter as slave. Each inverter's RS485 ID is 1 by default and can be set from 1 to 99 by holding the UP button while turning on the power.
Yes. With the city power breaker off, the inverter runs in inverter-only mode and supplies AC power from the battery as long as the DC supply provides enough voltage.
AIMS lists a full 2-year warranty from the date of purchase for this inverter.
The AIMS Power 2000 Watt Negative 48 Volt Rack Mount Pure Sine Inverter combines 2000 watts of pure sine output, a 20A automatic transfer switch, outlets plus a terminal block and RS485 monitoring in a 2U chassis. If you'd like help matching it to your -48V battery system or rack, the Outbound Power team is happy to help.
AIMS Power 2000 Watt Negative 48 Volt Rack Mount Pure Sine Inverter Specifications |
|
|---|---|
| Output | |
| Continuous Power | 2000 W |
| Surge Power | 4000 W (200% for 500 ms) |
| Output Voltage | 120 VAC |
| Output Waveform | Pure sine wave, 1 kW x 2 parallel (DSP control) |
| Output Frequency | 60 Hz |
| Frequency Selection | 60 Hz or 50 Hz (front panel switch) |
| THD | 1.2% at 1000W (60 Hz) |
| Max Efficiency | 93% (500 to 1500W output) |
| Continuous Efficiency | 92% |
| AC Outlets | 2 x 15A 3-prong 120 VAC |
| AC Terminal Block | 3-pole (neutral, earth, hot) |
| AC Output Breaker | 20A breaker switch |
| DC Input | |
| Input Voltage | Negative 48 VDC (-48V) |
| Operating Range | 41 to 60 VDC negative |
| Low Voltage Shutdown | -40.2 V |
| Low Voltage Return | -42.5 V |
| High Voltage Shutdown | -61.0 V |
| High Voltage Return | -59.0 V |
| No Load Current | 0.7 A fan off, 1.2 A fan on |
| Input Fuses | 30A (2) |
| Battery Terminals | Blade style, 0.25 in |
| Minimum DC Cable Size | 10 AWG, under 12 ft |
| Transfer Switch | |
| Type | Automatic, internal relay |
| Rating | 20A |
| Transfer Time | Under 20 ms |
| Switching Time | On 6 ms, off 16 to 19 ms (±2.5 ms) |
| City Power Input | 120 VAC |
| City Power Input Breaker | 20A breaker switch |
| Inverter-Only Mode | City power breaker off |
| Monitoring | |
| Communication Port | RS485 |
| Monitored Values | DC input voltage, AC output voltage, AC current, frequency |
| PC Connection | RS485 to USB converter |
| Serial Settings | 19200 bps, 8 data bits, no parity, no flow control |
| RS485 ID | 1 to 99 (default 1) |
| Front Display | Output voltage, output current, frequency, input voltage |
| Display Controls | UP and DOWN buttons |
| Status LEDs | Inverter on, overload protection, inverter, city power |
| Protection | |
| Protections | Low battery alarm and shutdown, high input voltage shutdown, output overload, output short circuit, over temperature |
| Over Temperature Return | 136.4°F (58°C) |
| Cooling | 2 automatic load and thermal based fans |
| Fan On Temperature | 104°F (40°C) |
| Physical | |
| Form Factor | 2U rack mount |
| Dimensions (W x D x H) | 16.5 x 17.5 x 3.75 in |
| Unit Weight | 21.5 lbs |
| Shipping Weight | 28 lbs |
| AC Terminal Wire | 10 AWG bare wire |
| Earth Wire | 8 AWG |
| Max AC Output Cord Length | 50 ft |
| Certifications and Warranty | |
| EMC | FCC Part 15 Subpart B, Class B |
| Certificates | KC EMC, CE EMC, RoHS |
| Warranty | 2 years from date of purchase |
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