SigenStor EC 4.0 SP

Item number: C00627

Guarantee: 10 years

The SigenStor EC 4.0 SP is the single-phase hybrid control unit with a nominal output of 4.0 kW for the Sigenergy smart energy storage system , which has been specially developed for residential solar power systems, battery energy storage, and uninterruptible backup power supply.

The device optimizes energy consumption with its built-in EMS (Energy Management System), supports intelligent cooperation between mains and battery operation, and provides true 0 ms backup switching using Sigen Gateway. Ideal for both new installations and energy storage upgrades.

Key benefits

• Built-in intelligent EMS system for precise energy control
• 150% peak power in island mode (for short periods for high-consumption loads)
• 0 ms switchover time to backup mode (Gateway required)
• Up to 98.0% maximum inverter efficiency
• 4 independent MPPT inputs for maximum solar yield
• 1–6 SigenStor BAT battery modules can be connected
• IP66 protection – suitable for outdoor installation
• Advanced remote monitoring: WiFi, Ethernet, RS485, mobile communication
  

Technical data

DC input (solar side)

• Maximum PV power: 8000 W
• Maximum DC voltage: 600 V
• Nominal DC voltage: 350 V
• Starting voltage: 100 V
• MPPT voltage range: 50 – 550 V
• Number of MPPT: 4
• Number of strings per MPPT: 1
• Maximum input current per MPPT: 16 A
• Maximum short-circuit current per MPPT: 20 A
  
  

AC output – mains power supply

• Nominal output power: 4000 W
• Maximum apparent power: 4400 VA
• Nominal output current: 18.2 A
• Maximum output current: 20.0 A
• Nominal output voltage: 220 / 230 / 240 V
• Network frequency: 50/60 Hz
• Power factor: 0.8 capacitive – 0.8 inductive
• Áramharmonikus torzítás (THDi): < 2%
• Maximum efficiency: 98.0%
• European efficiency: 97.2%
  
  

Backup (island operation) output

• Peak power (10 seconds): 6000 W
• Nominal output voltage: 220 / 230 / 240 V
• Nominal frequency: 50/60 Hz
• Feszültségtorzítás (THDv): < 2%
• Switchover time: 0 ms (using Sigen Gateway)
  
  

Battery connection

• Compatible batteries: SigenStor BAT series
• Number of connectable modules: 1–6
• Battery voltage range: 300–600 V
  
  

Built-in protection features

• DC reverse polarity protection
• Insulation monitoring
• Residual current monitoring
• Arc fault protection (AFCI)
• AC overcurrent, overvoltage, and short-circuit protection
• Type II DC and AC surge protection
• Islanding protection (anti-islanding)
  
  

General information

• Dimensions (W × H × D): 700 × 300 × 245 mm
• Weight: 18 kg
• Operating temperature: –30 °C to +60 °C
• Storage temperature: –40 °C to +70 °C
• Relative humidity: 0–100%
• Protection level: IP66
• Communication: WLAN, Fast Ethernet, RS485, Sigen CommMod (4G/3G/2G)
  
  

Standards, compliance

• IEC/EN 62109-1
• IEC/EN 62109-2
• IEC/EN 61000-6-1
• IEC/EN 61000-6-2