--- title: "Easun Power iSolar SPH 3KW Off-grid Inverter: Specs & Datasheet | ComparePV" description: "Easun Power iSolar SPH 3KW 2.4 kW off-grid inverter. Specs: 102 V max DC input, 5.2 kg." source: "https://comparepv.com/inverter/easun-power-isolar-sph-3kw" updated: 2026-01-19 --- # Easun Power iSolar SPH 3KW ## Identity - **Manufacturer:** Easun Power - **Model:** iSolar SPH 3KW - **Series:** iSolar SPH - **Rated AC power:** 2.4 kW - **Type:** Off-grid - **Phases:** Single-phase - **Battery port:** yes ## How it compares Compared against 164 inverters up to 3 kW. Ranks are within that class. | Measure | This inverter | Class median | Standing | Rank in class | | --- | --- | --- | --- | --- | | European efficiency | - | 97.0% | | | | MPPT trackers | - | 1 | | | | Max DC input voltage | 102 V | 550 V | Weak - bottom 1% | 135 | | Weight per kW | 2.2 | 4.0 | Strong - top 9% | 14 | | Warranty | - | 5 yrs | | | ## Specification ### AC output - **Rated AC power:** 2.4 kW - **Max apparent power:** 3.00 kVA - **Phases:** Single-phase - **Nominal AC voltage:** 230 V ### PV input - **Max DC voltage:** 102 V - **MPPT voltage range:** 30 to 80 V ### Efficiency - **Max efficiency:** 93.0 % ### Battery - **Battery port:** Yes - **Battery voltage:** 24VDC (nominal) - **Max charge current:** 70.0 A - **Grid-forming:** Yes ### Physical - **Dimensions:** 100 × 272 × 305 mm - **Weight:** 5.2 kg - **Operating temperature:** 0 to 55 °C - **Max humidity:** 95 % ### Connectivity and protection - **Interfaces:** Display ### Pros - **A perfect sine wave - full compatibility** - The pure sine wave output (THD \<3%) ensures safe operation with sensitive devices: household appliances, medical equipment, and pumps with inverters. This is an advantage over cheaper models that produce modified sine waves, which can damage motors and electronics. - **Parallel processing for up to 9 units** - The SPH series supports the parallel connection of up to 9 inverters, which allows the system's power to be scaled from a few kW to approximately 50 kW without the need to replace equipment. This is a practical advantage for facilities with increasing energy needs (farms, workshops). - **Built-in WiFi monitoring** - The integrated Wi-Fi module and SolarPower app (Android/iOS) allow for remote monitoring of system parameters without incurring additional costs for a communication gateway - while competitive brands (e.g., Victron) offer Wi-Fi/GSM modules as a paid option. - **Wide compatibility with batteries** - The SPH series supports both lead-acid (AGM, GEL, Flooded) and lithium-ion (LiFePO4) batteries, with a configurable charging profile - which makes it easy to upgrade existing systems without replacing the entire system. - **Configuration via an LCD panel without a computer** - Operating parameters (priority of power sources, charging thresholds, UPS mode) are set directly from the built-in display and keyboard - eliminating the need to connect a laptop or install software, which lowers the barrier to entry for users without technical expertise. ### Cons - **12-month warranty vs. 24-60 month warranties offered by competitors** - The standard Easun Power warranty is 12 months (as confirmed in the product documentation). Major competitors in the off-grid segment - Victron Energy (5 years), Growatt (5 years), and Deye (5 years) - offer significantly longer coverage, which translates into a real risk of service costs after one year of operation. - **SolarPower application - documented failures** - On the DIY Solar Power Forum (in the thread 'SolarPower, SmartESS, WatchPower mostly down'), users reported frequent server outages, delays in data retrieval (updates every 5 minutes), and the inability to remotely restart the WiFi module. This significantly limited the functionality for users who relied on remote monitoring. - **3K model with PWM, not MPPT** - The SPH 3KVA model is equipped with a PWM controller (Voc PV max. 80 V, PV power max. 1200 W), not an MPPT controller - even though the entire SPH series is marketed with MPPT technology. The PWM controller recovers approximately 10-15% less energy in shaded or suboptimal mounting angle conditions compared to an MPPT controller of the same power class. - **High power consumption in standby mode** - Users on elektroda.pl and DIY Solar Power Forum report a zero-power consumption of 40-50 W for 5-6 kW models (approximately 1.0-1.2 kWh/day). When using an off-grid system powered solely by batteries, this translates to a real daily capacity loss even when there is no load. ## About this series The Easun Power iSolar SPH series consists of off-grid inverters designed for autonomous operation with batteries and PV systems - ideal where energy independence matters (homes, cabins, farms, small commercial buildings). In practice, they stand out due to their simple, clear configuration via the display and stable operation with pure sine wave, enabling seamless cooperation with sensitive electronics and standard home appliances. This series employs MPPT, which helps maintain high energy yields under varying sunlight conditions. This is especially beneficial in case of partial shading or suboptimal module positioning, as the power-point tracking system can better utilize available sunlight. A further advantage is WiFi monitoring - in practice, remote viewing of the system's operation and basic parameters via the SolarPower app. The manufacturer also offers standard protection and service within the warranty scope (typically 12-24 months, depending on the sales channel). ## Questions ### Is the Easun Power iSolar SPH series still available for sale? The iSolar SPH series has been discontinued by Easun Power and is no longer offered as a new product in regular distribution. You may occasionally find existing units at distributors clearing out their inventories or on the secondary market. If you are looking for a current replacement, it is worth checking out the newer models from the iSolar SMH or SMP series from the same manufacturer, which offer similar features in an updated design. ### What is the maximum power rating of Easun Power and iSolar SPH inverters that are suitable for different types of receivers? The iSolar SPH series is available in 3 KVA (24 V) and 5 KVA (48 V) versions, which essentially allows for the operation of typical household appliances, such as lighting, refrigerators, televisions, laptops, and small electric tools. The clean sine wave output ensures compatibility with sensitive electronics. However, it is not designed for powering large three-phase appliances or for use in conjunction with the electrical grid (it lacks grid-tie functionality). ### What type of charge controller is used in the iSolar SPH series - MPPT or PWM? In the iSolar SPH series, the manufacturer uses an MPPT (Maximum Power Point Tracking) controller, which actively adjusts the operating point to current solar conditions. In practice, this translates to better panel utilization under partial shading or cloudy skies compared to cheaper PWM controllers. However, it is worth verifying the specifications of the specific power variant before purchasing, as the lower-end models in the series may have been equipped with PWM. ### Which batteries are compatible with the Easun Power andSolar SPH inverter? The iSolar SPH series 3 KVA and 5 KVA models are designed to work with 24 V batteries (minimum recommended capacity of 100 Ah), while the 5 KVA models require a 48 V system. The devices support standard lead-acid (AGM, gel) batteries, and, with the appropriate charging profile configuration from the LCD display, lithium-ion LiFePO4 batteries. Charging parameters, such as current and cut-off voltage, can be manually adjusted to match the existing battery pack. ### How to monitor the performance of an inverter-based solar system over the internet? The iSolar SPH series is equipped with a WiFi module that allows for remote monitoring of system parameters via the SolarPower app (available for Android and iOS). The app displays the current battery charge level, PV panel production, and output load. Monitoring works without additional gateways or paid subscriptions - simply connect the inverter to your home's wireless network. ### What is the warranty on the Easun Power iSolar SPH inverters, and what does it cover? The standard warranty period for the iSolar SPH series is 12 to 24 months, depending on the sales channel and country of purchase. The warranty covers manufacturing defects in components and electronics; however, mechanical damage, power surges from the grid, or improper installation are typically excluded. Due to the discontinuation of the product line, it is advisable to confirm the current warranty period and post-warranty service terms with the seller before purchasing. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/inverters/SPH-3K-2a435aac1e11.pdf) ## Alternatives | Inverter | Rated AC | Euro efficiency | MPPT | Weight | Difference | | --- | --- | --- | --- | --- | --- | | [Easun Power ISolar SPL 3K](https://comparepv.com/inverter/easun-power-isolar-spl-3k) | 2.4 kW | | | 6.9 kg | 1.7 kg heavier | | [Easun Power iSolar SMH 3KW](https://comparepv.com/inverter/easun-power-isolar-smh-3kw) | 2.4 kW | | 1 | 5.2 kg | Similar on paper | | [Easun Power ISolar PLV 3K](https://comparepv.com/inverter/easun-power-isolar-plv-3k) | 2.4 kW | | | 9.8 kg | 4.6 kg heavier | | [Easun Power ISolar MLV 3K](https://comparepv.com/inverter/easun-power-isolar-mlv-3k) | 2.4 kW | | | 9.8 kg | 4.6 kg heavier | | [Easun Power ISolar MLV 3K-24V-Alfa](https://comparepv.com/inverter/easun-power-isolar-mlv-3k-24v-alfa) | 2.7 kW | | | 12.0 kg | +0.3 kW, 6.8 kg heavier | | [Growatt SPF 2000TL HVM](https://comparepv.com/inverter/growatt-spf-2000tl-hvm) | 2 kW | | | 8.0 kg | -0.4 kW, 2.8 kg heavier | | [Easun Power ISolar MLVZ 2KW-24V](https://comparepv.com/inverter/easun-power-isolar-mlvz-2kw-24v) | 2 kW | | | 11.0 kg | -0.4 kW, 5.8 kg heavier | | [Easun Power ISolar SPV 2K-24](https://comparepv.com/inverter/easun-power-isolar-spv-2k-24) | 2 kW | | | 5.5 kg | -0.4 kW | --- Source: https://comparepv.com/inverter/easun-power-isolar-sph-3kw