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| Categories | Off Grid Hybrid Solar Inverter |
|---|---|
| Brand Name: | 1stess |
| Model Number: | EM-T (PV60-500VDC) 11000-48L |
| Certification: | CE, IEC |
| Place of Origin: | China |
| MOQ: | 1 piece |
| Price: | To be negotiated |
| Payment Terms: | L/C,T/T |
| 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: | Off Grid inverter |
| Frequency: | 50Hz/60Hz |
| Output Voltage: | 220VAC/230/240VAC |
| Communication Interface: | RS232/RS485/DRY CONTACT |
| Input Voltage: | 230VAC |
| Size: | 540*415*122mm |
| Waveform: | Pure Sine wave |
| Output Current: | 160A |
| Weight: | 15kg |
| Company Info. |
| Shenzhen First Tech Co., Ltd. |
| Verified Supplier |
| View Contact Details |
| Product List |

| MODEL | EM8500-48L | EM11000-48L |
|---|---|---|
| Capacity | 8.5KVA/8.5KW | 11KVA/11KW |
| Maximum PV input power | 10000W | 11000W |
| Lithium Battery Activation | YES ( By PV or Utility) | YES ( By PV or Utility) |
| Lithium Battery Communication | YES(RS485) | YES(RS485) |
| Battery Voltage | 48VDC | 48VDC |
| Solar Charger TYPE | MPPT | MPPT |
| Communication Interface | RS232/RS485/DRY CONTACT | RS232/RS485/DRY CONTACT |
| Dimension, D xW x H(mm) | 540*415*122 | 540*415*122 |







Q1: Does the EM series meet Malaysia's standards for residential
solar systems?
A: While local certification may be required, the inverter's pure
sine wave output and PF=1.0 align with international standards,
ensuring safe and efficient operation in Malaysia.
Q2: How does it handle Malaysia's consistent solar exposure?
A: With a max PV input of 500Vdc and MPPT range of 60-500Vdc, the
inverter optimizes energy harvest from Malaysia's abundant
sunlight, increasing ROI for solar investments.
Q3: Is the Wi-Fi module easy to set up for urban homes?
A: Yes, the optional Wi-Fi module offers plug-and-play setup,
allowing users in Kuala Lumpur or Penang to monitor energy usage
remotely via smartphones.
Q4: Can it support small businesses with high power demands?
A: Absolutely! The 11KW model provides reliable power for shops or
workshops, with overload protection (140% for 5s) ensuring safety
during demand spikes.
Q5: How does the battery charging compare to traditional inverters?
A: The EM series offers up to 160A solar charge current, charging
batteries faster than conventional models—perfect for Malaysia's
energy storage needs.
Q6: What cooling mechanisms are in place for tropical heat?
A: Built-in thermal management and a wide operating temperature
range ensure stable performance, even in Malaysia's hot climate.
Q1: Is the EM series durable enough for the Philippines'
typhoon-prone areas?
A: Yes! The anti-shock terminals and robust housing withstand harsh
weather. Its ability to operate without a battery adds resilience
during disasters.
Q2: How does it address frequent brownouts in rural areas?
A: With a transfer time of 20ms for home appliances, the inverter
provides seamless backup power, essential for Philippines' unstable
grid.
Q3: Can it be used with portable generators?
A: While designed for solar and grid, the AC charger compatibility
allows integration with generators, a common backup solution in the
Philippines.
Q4: What solar panel configurations are recommended?
A: The dual MPPT supports two independent PV arrays up to 5500W
each, ideal for maximizing limited roof space in Philippine homes.
Q5: Is technical support available locally?
A: Although specific support depends on distributors, the product's
RS485 and dry contact interfaces facilitate local technician
assistance.
Q6: How does the EQ function help in extending battery life?
A: It prevents battery stratification and corrosion, crucial in the
Philippines where high temperatures accelerate battery degradation.
Q1: Can the EM series handle Nigeria's unstable grid and voltage
spikes?
A: Definitely! The wide input voltage range (90-280VAC) and
overload protection safeguard against grid irregularities, common
in Nigeria.
Q2: How efficient is it for off-grid homes in rural Nigeria?
A: With 94% peak efficiency and the ability to work without a
battery, it reduces energy waste and costs, perfect for remote
communities.
Q3: Is it compatible with deep-cycle batteries used in Nigeria?
A: Yes, the CC/CV charging method supports deep-cycle lead-acid
batteries, while RS485 enables future upgrades to lithium
batteries.
Q4: What is the maximum discharge current for high-power
appliances?
A: The EM11000-48L offers 220A discharge current, capable of
running refrigerators, water pumps, and lighting systems
simultaneously.
Q5: How does the MPPT perform in Nigeria's sunny climate?
A: The MPPT technology ensures maximum solar energy harvest,
leveraging Nigeria's high solar irradiance to cut diesel generator
reliance.
Q6: Are there options for system expansion?
A: While parallel capability is not supported, the high capacity
and modular design allow for scalable setups in Nigerian homes and
businesses.
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