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11.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System

Product Details

Place of Origin: China

Brand Name: 1stess

Certification: CE, IEC

Model Number: SP11K4L-UL

Payment & Shipping Terms

Minimum Order Quantity: 1 piece

Price: To be negotiated

Packaging Details: carton box

Delivery Time: 30 days

Payment Terms: L/C, T/T

Supply Ability: 2000 pieces per month

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Specifications
Highlight:
Charging Mode:
MPPT
Operating Temperature:
-10°C To 50°C
Inverter Type:
Off Grid Inverter
Frequency:
50Hz/60Hz
Output Voltage:
48VDC
Communication Interface:
RS485/CAN/USB
Charging Mode:
MPPT
Operating Temperature:
-10°C To 50°C
Inverter Type:
Off Grid Inverter
Frequency:
50Hz/60Hz
Output Voltage:
48VDC
Communication Interface:
RS485/CAN/USB
Description
11.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System

 On/Off Grid Solar Inverter Pure Sine Wave Solar Inverter 

Product Features:

1.Up to 200% oversizing allowed with 3 MPPTS

2.Support high power module with 30A PVinput current
3.Support AC coupled solarinput
4.Stackable up to 9 units
5.Four application modes, mixed with time control
6.Remote configuration and upgrade
MODEL
SP5KL-UL
SP6KL-UL
SP7K6L-UL
SP10KL-UL
SP11K4L-UL
Nominal Battery Voltage
48VDC
Mounting Method
Wall Bracket
Battery Type
Lithium-ion/Lead-acid
Nos.of MPPT
2
3
Nominal Output Voltage
220V/230/240V,L+N+PE
Battery Voltage Range
40V-64V
Rated Grid Frequency
50Hz/60Hz
Transfer Time
10ms (typical)
Nominal AC Output Power
5000W
6000W
7600W
10000W
10000W
Ingress Protection Degree
NEMA 3R
NEMA 3R
NEMA 3R
NEMA 3R
NEMA 3R
Max.AC Output Apparent Power
5000VA
6000VA
7600VA
11000VA
11000VA
Weight
40Kg
Dimensions (W*H*D)
420mm*800mm*240mm
Warranty
5 Years/10 Years (Optional)
Display
LED,LCD

Technical Parameters:

11.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System 011.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System 111.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System 211.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System 3

 

11.4kW Max Output Solar Inverter 15kW PV Input NEMA 3R 48V Hybrid System 4

Reasons Why Customers Purchase This Inverter

Based on the technical data sheet, customers choose this inverter due to efficiency-driven savings, system compatibility, reliability, safety compliance, and environmental adaptability, as detailed below:

  1. Energy Efficiency Priorities The inverter boasts industry-leading conversion efficiencies: up to 98.0% (PV to AC), 94.5% (battery to AC), and a CEC efficiency of 96.5%. These reduce energy loss during power conversion, directly lowering long-term electricity costs for solar generation and energy storage systems.

  2. PV System Compatibility

    • Power Range: Models cover 7.5kW to 15kW of maximum PV input power, suiting small residential to medium commercial solar arrays.
    • MPPT Flexibility: Wide MPPT voltage range (70V–540V), high single-MPPT current (30A/40A), and 2–3 MPPT channels ensure compatibility with diverse PV module brands/specs. Even in low-light or cloudy conditions, MPPT efficiently tracks maximum power.
  3. Energy Storage Flexibility

    • Battery Compatibility: Supports both lithium-ion and lead-acid batteries (adapting to existing lead-acid setups or new lithium deployments).
    • Charge/Discharge Performance: Battery voltage range (40V–64V), high charge/discharge current (up to 210A), and power (up to 10kW) enable seamless integration with home or small commercial energy storage systems.
  4. Load & Reliability Demands

    • Powerful Output: Grid-tied and backup AC output power (e.g., 10kW for SP10KL-UL) and peak apparent power up to 20kVA handle high-load devices (e.g., air conditioners, industrial equipment) and surges.
    • Seamless Backup: Transfer time <10ms (typical) ensures “zero-perception” switching to battery power during outages, critical for sensitive loads (medical devices, office systems).
  5. Safety & Regulatory Compliance

    • Comprehensive Protection: Class I protection (anti-electric shock), anti-islanding, overcurrent/overvoltage, short-circuit, reverse polarity, and surge protection safeguard systems and users.
    • Global Certifications: UL 1741 (PV safety), CSA C22.2 (Canadian safety), FCC Part 15 (EMC) meet strict North American/European regulatory requirements, simplifying market access.
  6. Environmental & Maintenance Value

    • Harsh Environment Tolerance: Operates at 2,000m altitude, -25°C to 60°C (with derating), and 0–100% humidity (fan cooling ensures thermal stability). Ideal for high-altitude, extreme-temperature, or humid regions.
    • Warranty & Support: 5-year basic warranty + 10-year optional extension reduces long-term maintenance risks and costs.

Core Advantages of the Inverter

The inverter’s competitive edge stems from efficiency, adaptability, safety, intelligence, and environmental resilience, as evidenced by technical specifications:

  1. Efficiency Benchmark

    • Top-tier conversion: 98.0% (PV→AC), 94.5% (battery→AC), and 96.5% CEC efficiency minimize energy waste.
    • Superior power quality: Power factor >0.99 (rated power) and THDi <3% ensure clean, grid-compliant electricity.
  2. Full-Scenario Adaptability

    • PV Side: 7.5kW–15kW input power, multi-channel MPPT, and wide voltage/current ranges adapt to small residential or commercial solar systems.
    • Storage Side: Dual battery type support, broad voltage range (40V–64V), and high charge/discharge capacity integrate with legacy lead-acid or modern lithium setups.
    • Load Side: Matched grid-tied/backup output power (e.g., 10kW bidirectional for SP10KL-UL) and 20kVA peak handle heavy loads and surges.
  3. Robust Safety Engineering

    • Class I protection + 10+ electrical safeguards (anti-islanding, overcurrent/voltage, short-circuit, etc.) eliminate shock, fire, and system failure risks.
    • Compliance with global safety standards (UL, CSA, FCC) ensures reliability across markets.
  4. Smart & User-Centric Design

    • Monitoring & Control: Wireless, APP, and optional LCD interfaces enable remote management. Multi-protocol support (CAN, RS485, WiFi) integrates with BMS (Battery Management Systems).
    • Installation & Switching: Wall-mountable design, terminal-based PV connections, and <10ms backup transfer simplify deployment and ensure uninterrupted power.
  5. Extreme Environment Resilience

    • Operates at 2,000m altitude, -25°C to 60°C (with derating), and 100% humidity. Fan cooling maintains thermal stability in harsh climates (e.g., highlands, deserts, tropical regions), reducing downtime.

These advantages position the inverter as a versatile, efficient, and safe solution for residential, small commercial, and distributed solar+storage applications, addressing core pain points in power generation, storage, and consumption.

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