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| Categories | Off Grid Hybrid Solar Inverter |
|---|---|
| Brand Name: | 1stess |
| Model Number: | EM (PV60-500VDC) 620048L |
| Certification: | CE, IEC |
| Place of Origin: | China |
| MOQ: | 1 piece |
| Price: | To be negotiated |
| Payment Terms: | L/C,D/A,D/P,T/T,Western Union,MoneyGram |
| Supply Ability: | 2000 pieces per month |
| Delivery Time: | 30 days |
| Packaging Details: | carton box |
| Charging Mode: | MPPT |
| Operating Temperature: | -10°C To 50°C |
| Inverter Type: | hybrid solar inverter |
| Frequency: | 50Hz/60Hz |
| Output Voltage: | 48VDC |
| Size: | 438*295*105mm |
| Company Info. |
| Shenzhen First Tech Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |

| Place of Origin | China | China | China |
|---|---|---|---|
| Mounting Method | Wall Bracket | Wall Bracket | Wall Bracket |
| Nominal Battery Voltage (V) | 24VDC | 48VDC | 48VDC |
| Lithium Battery activation | YES( By PV or Utility) | YES( By PV or Utility) | YES( By PV or Utility) |
| Nominal Voltage | 230VAC | 230VAC | 230VAC |
| Lithium Battery communication | YES(RS485) | YES(RS485) | YES(RS485) |
| Frequency | 50/60Hz | 50/60Hz | 50/60Hz |
| Waveform | Pure Sine wave | Pure Sine wave | Pure Sine wave |
| Solar Charger Type | MPPT | MPPT | MPPT |
| Communication Interface | RS232+RS485 | RS232+RS485 | RS232+RS485 |
| PV Array MPPT Voltage Range | 60VDC~500VDC | 60VDC~500VDC | 60VDC~500VDC |
| Surge Power | 7000VA | 11000VA | 1240VA |
| Size | 358*295*100mm | 438*295*105mm | 438*295*105mm |
| Weight | 7kg | 9kg | 9kg |
| Operating Temperature Range | (-10'℃ to 50℃) | (-10'℃ to 50℃) | (-10'℃ to 50℃) |








FAQ: EM Series Hybrid Inverter for the Philippine Market
Q1: Is this inverter strong enough to survive frequent typhoons and
high humidity?
A: The inverter is built to be robust. While it should be installed
in a protected location, its construction and non-condensing
humidity tolerance (5%-95%) make it resilient to the challenging
tropical climate of the Philippines.
Q2: Can it provide power during frequent brownouts?
A: Yes, this is one of its primary functions. The automatic and
rapid switch to battery backup (in 10-20ms) ensures your household
or business remains powered during common brownouts.
Q3: Is it easy to find a technician to install and service this
unit?
A: The installation is straightforward for a qualified electrician.
We are also expanding our network of trained partners and
technicians across the Philippines to provide reliable installation
and after-sales service.
Q4: What does "Admissible Power Factor 0.6~1" mean for my
appliances?
A: This means the inverter can efficiently power a wide range of
appliances, including those with inductive motors (like fans,
fridge compressors) which have a lower power factor, without
causing overloads or inefficiencies.
Q5: Can I use a generator as the AC input for backup charging?
A: Yes, the AC input can be connected to the grid or a generator.
This provides a flexible backup charging source for your batteries
during prolonged periods of bad weather when solar generation is
low.
Q6: How does the high PV voltage range help with system design?
A: The 60-500Vdc MPPT range allows you to connect longer strings of
panels with fewer cables and lower current, reducing installation
costs and improving efficiency, which is ideal for larger rooftop
installations.
FAQ: EM Series Hybrid Inverter for the Mexican Market
Q1: Is the inverter certified by the CRE (Comisión Reguladora de
Energía) in Mexico?
A: Our products are designed to meet international safety standards
(CE, RoHS). For specific CRE requirements for interconnection, we
recommend consulting with your installer. The EM Series is
perfectly suited for off-grid and backup power applications, which
are widely used across Mexico.
Q2: Can it handle the power fluctuations common in some Mexican
grids?
A: Sí, definitivamente (Yes, definitely). The wide AC input voltage
range (90V-280V) acts as a built-in stabilizer, protecting your
connected appliances and the inverter itself from damage caused by
unstable grid voltage.
Q3: Is the WiFi monitoring secure and reliable?
A: Yes, the optional WiFi module uses secure communication
protocols to ensure your data is safe. It provides a reliable
connection to monitor your energy production and consumption from
anywhere.
Q4: What is the benefit of the "High Efficiency" rating for my
wallet?
A: A high peak efficiency of 96% means that very little solar
energy is wasted as heat during conversion. This translates
directly into more usable power for your home and lower electricity
bills, maximizing your return on investment.
Q5: Can I use this system to power a small business like a tienda
or restaurant?
A: Yes, the higher-capacity models (5.5KW, 6.2KW) are excellent for
small commercial establishments. They can power lighting,
point-of-sale systems, refrigerators, and other essential
equipment, providing significant savings and backup during outages.
Q6: How does the BMS communication extend the life of my lithium
battery?
A: By communicating directly with the Battery Management System
(BMS), the inverter optimizes charging and discharging parameters
specifically for that battery. This prevents over-charging and
deep-discharging, which are the main factors that shorten battery
lifespan.
FAQ: EM Series Hybrid Inverter for the Kenyan Market
Q1: Is this a good solution for areas with no grid connection in
rural Kenya?
A: Absolutely. The EM Series is a perfect all-in-one solution for
complete off-grid living. It combines a solar charger, inverter,
and charger in one unit, making it ideal for powering homes,
schools, or clinics in remote areas.
Q2: Can it be used with a car battery in an emergency?
A: While technically possible, we do not recommend it. The inverter
is designed for 24V or 48V deep-cycle battery banks (lead-acid or
lithium). Car batteries are not designed for deep cycling and would
be damaged quickly.
Q3: How does the MPPT benefit my system compared to a cheaper PWM
controller?
A: An MPPT controller is up to 30% more efficient than a PWM
controller. It extracts the maximum possible power from your solar
panels, meaning you get more energy from the same number of panels,
which is a critical cost-saving factor.
Q4: Is the unit protected against lightning and surges?
A: The inverter includes basic surge protection. However, in areas
prone to lightning strikes, like some regions in Kenya, we highly
recommend installing external lightning arrestors and surge
protectors on both the AC and DC sides for complete protection.
Q5: What does "CC/CV Charging" mean for my battery?
A: CC/CV (Constant Current/Constant Voltage) is the professional
and recommended method for charging batteries. It ensures a fast
yet safe charge, prolonging the life of your battery bank, whether
it's lead-acid or lithium.
Q6: Can I power a water pump for my farm with this inverter?
A: Yes, the high surge power capability allows it to start the
motor of a submersible or surface water pump. The 5.5KW and 6.2KW
models are particularly well-suited for such agricultural
applications.
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