Photovoltaic solar inverter technology based on PVI-3.0-OUTD-US design
Main features:
PVI-3.0-OUTD-US / PVI-3.0-OUTD-S-US
PVI-3.6-OUTD-US / PVI-3.6-OUTD-S-US
PVI-4.2-OUTD-US / PVI-4.2-OUTD-S-US
High efficiency 3kW~4.2kW ​​inverter
Aurora® grid-connected transformerless inverters offer a unique combination of ultra-efficient, easy-to-install design, long life and competitive initial acquisition cost, and significantly increase the return on investment of solar equipment.
Industry leading features and performance
High efficiency provides more energy - up to 96.8% (96% CEC)
Two inputs with independent MPPT, optimized for multiple, face-oriented arrays with low power consumption and high power density: in a box measuring only 31†x 12 13/16†x 7 11/16†Achieved 4600W (maximum) output power
Unparalleled application flexibility
Full power achieved at ambient temperatures up to 50 ° C
2 input segments with parallel options and independent high-speed MPPT, optimized for multiple energy-oriented MPPT operating ranges for arrays in different directions: 90~580VDC
Industry recognized reliability
The IP65 (NEMA 4) enclosure withstands the harshest environmental conditions. The front-mounted radiator is resistant to contamination, enhancing cooling and improving reliability and long-term efficiency.
Grid-connected operation meets the requirements of international standards, UL1741/IEEE1547 and CSA-C22.2 N.107.1-01
10 year warranty, can be extended to 15 and 20 years
Easy to install design
Reverse polarity protection minimizes potential damage caused by wiring errors during installation. Panel mounted LCD displays provide real-time updates for all critical operating parameters
RS-485 and USB communication interface integrated DC switch, in line with NEC standard 690 "solar photovoltaic system" (USA) requirements anti-island protection
High efficiency over a wide range of operating conditions
The PVI-3.0, PVI-3.6 and PVI-4.2 inverters achieve efficiencies as high as 96.8% (CEC 96%) at rated output voltage. The graph to the right shows the high efficiency of PVI-4.2 over a range of continuous input voltage and load conditions.
The figure below illustrates the industry-leading performance and continuous load condition range for all models at three discrete MPPT-voltage reference points.
Standards and specifications
Aurora inverters meet the requirements for grid-connected operation, safety and electromagnetic compatibility standards, including UL1741/IEEE1547, CSA-C22.2 N.107.1-01, VDE0126, CEI 11-20, DK5940, CEI64-8, IEC 61683, IEC 61727, EN50081, EN50082, EN61000, CE certification and El Real Decreto RD1663/2000 de Espa&nTIlde;a. 
Figure 1. Solar inverter outline drawing
specifications | PVI-3.0-OUTD/-S | PVI-3.5-OUTD/-S | PVI-4.2-OUTD/-S |
Input parameters (DC side) | |||
Rated DC power | 3120W | 3750W | 4380W |
Maximum total DC power | 3500W | 4150W | 4820W |
Working MPPT input voltage range | 90~580V (rated voltage: 360V) | ||
Full power MPPT range | 160~530V | 200~530V @ Vgrid 277V | 200~530V @ Vgrid 277V |
200~530V @ Vgrid 240V | 200~530V @ Vgrid 240V | ||
220~530V @ Vgrid 208V | 220~530V @ Vgrid 208V | ||
Maximum input voltage | 600V | ||
Activation voltage | Rated voltage: 200V (adjustable from 120V to 350V) | ||
Number of independent MPPT channels | 2 | ||
Maximum DC power on each MPPT channel | 2000W | 3000W | 3000W |
Maximum DC current per MPPT channel | 10A (short circuit current: 12.5A) | 16A (short circuit current: 20A) | 16A (short circuit current: 20A) |
Thermal protection DC terminal varistor | 4 | ||
DC switch | Integrated in the -S version (rated value: 600V/25A) | ||
DC connection | 4 (2 positive, 2 negative) | ||
Output parameters (AC side) | |||
Rated AC power | 3000W | 3600W | 4200W |
Highest AC power | 3300W | 4000W | 4600W |
AC connected | Phase Split 240V - Single Phase 208V/277V | ||
Rated AC voltage | Default 240V - 208V or 277V can be selected (requires setting) | ||
AC voltage range | 277V (244-304) 240V (211-264) 208V (183-328) | ||
Rated AC frequency | 60Hz | ||
Continuous AC output current | 12A - 14.5A - 14.5A | 16A - 17.2A - 17.2A | 20A - 20A - 20A |
Maximum output OC protection | 15A - 20A - 20A | 15A - 25A - 25A | 25A - 25A - 25A |
AC terminal varistor | 2 (charged - not charged / charged - PE) | ||
AC connection | Screw terminal box wire size: AWG20~AWG6 (solid wire), AWG20~AWG8 (multiple stranded wire) | ||
Line power factor | 1 | ||
AC current distortion | <2% (at rated power and sine wave voltage) | ||
Maximum efficiency | 96.8% | ||
CEC efficiency | 96% | ||
Input power threshold | 20W | ||
Night power consumption | <2W | ||
isolation | No (no transformer topology) | ||
Environmental parameters | |||
cool down | Natural cooling | ||
Ambient temperature range (°C) | -25°C~+60°C; output power derating when Tamb>55°C | -25°C~+60°C, derating when Tamb>45°C | |
Operational level | 6000 ft | ||
noise | <50dBA @ 1mt | ||
Environmental NEMA rating | NEMA 4X | ||
Relative humidity | 0-100% condensation | ||
mechanical | |||
Size (HxWxD) (inches) | -S version: 787x352x208mm - (31", 12 3/4", 8 1/4") | ||
weight | 17Kg (37.5 lbs) - 21Kg (46.25 lbs) | ||
other | |||
monitor | Yes (alphanumeric 2 lines) | ||
Communication | RS485 (spring terminal box - wire cross section: AWG28-16) | ||
Figure 2. Solar inverter output efficiency diagram 
Figure 3. Solar inverter block diagram and working configuration diagram
Headphone speaker is a king of speaker unit which is used for headphone, it also called headphone driver. These speakers have high sound pressure level, fast frequency response, wide frequency response range and low distortion. Headphone Speakers are mainly used for voice headphone (e.g. customer service phone, call center headphone, military intercom headset- ) and music headphone (e.g. Bluetooth headphone, sport headphone, game headphone-).
Our main headphone speakers include:
1) From the diameter, we have speakers in 23mm ~ 57mm.
2) From the impedance, we have speakers of 32ohm/150ohm/300ohm/1000ohm.
FAQ
Q1. What is the MOQ?
XDEC: 2000pcs for one model.
Q2. What is the delivery lead time?
XDEC: 15 days for normal orders, 10 days for urgent orders.
Q3. What are the payment methods?
XDEC: T/T, PayPal, Western Union, Money Gram.
Q4. Can you offer samples for testing?
XDEC: Yes, we offer free samples.
Q5. How soon can you send samples?
XDEC: We can send samples in 3-5 days.
Intercom Headphone Speaker,Call Center Headphone Speaker,Military Headphone Speaker,Voice Headphone Speakers
Shenzhen Xuanda Electronics Co., Ltd , http://www.xdecspeaker.com