The switchgear EMITER EM-41_DCAC Hermetic IP65 DC/AC Switchgear with Dehn Type 2 Surge Arrester for 1 PV String and 1 MPPT is compared with other EMITER models designed for photovoltaic systems. All these units feature hermetic IP65 (or IP66) enclosures suitable for outdoor installation and are equipped with Dehn surge protection. The main differences lie in the number of supported PV strings and MPPT inputs, as well as alternating current (AC) specifications such as amp ratings, phase counts, and residual current device (RCD) integration.
⚙️ The table below compares enclosure characteristics, PV string and MPPT support, AC/DC surge protection types, grid parameters (phases and amperage), and additional safety components such as RCDs.
| Comparison parameter | EMITER EM-41_DCAC | EMITER EM-841_DCAC | EMITER EM-215_DCAC | EMITER EM-528_DCAC | EMITER EM-714N_DCAC | EMITER EM-855_DCAC | Practical conclusion |
|---|
| Type and purpose | DC/AC switchgear for 1 PV string and 1 MPPT | DC/AC switchgear for 2 PV strings and 2 MPPT | DC/AC switchgear for 1 PV string and 1 MPPT | DC/AC switchgear for 2 PV strings and 2 MPPT | DC/AC switchgear for 1 PV string and 1 MPPT | DC/AC switchgear for 4 PV strings and 4 MPPT | Choice depends on the scale of the solar installation and inverter configuration. |
| Ingress protection | IP65 hermetic enclosure | IP65 hermetic enclosure | IP65 hermetic enclosure | IP65 hermetic enclosure | IP65 hermetic enclosure | IP66 hermetic enclosure | All models are suitable for reliable outdoor mounting. |
| DC configuration (Strings / MPPT) | 1 PV string / 1 MPPT | 2 PV strings / 2 MPPT | 1 PV string / 1 MPPT | 2 PV strings / 2 MPPT | 1 PV string / 1 MPPT | 4 PV strings / 4 MPPT | The main product is designed for straightforward systems with a single panel line. |
| AC protection specs | 3-phase, 20A, Type 2 | Type 2 DC and Type 1+2 AC (10A) | 1-phase, 16A, Type 2 | 3-phase, 16A, with RCD 40A/300mA | 3-phase, 10A, with RCD 40A/300mA, Type 2 | 3-phase, with 100A switch | Differ in AC grid connection requirements and protective automation features. |
◎ The table below evaluates which models are most suitable for specific use cases, installation scenarios, and user needs.
| Use case | Recommended product | Why |
|---|
| Small solar installation with one panel line and 3-phase 20A connection | EMITER EM-41_DCAC | Ideally configured for systems using 1 MPPT and a medium-power 3-phase inverter. |
| System with two solar arrays and dual MPPT inputs | EMITER EM-841_DCAC or EMITER EM-528_DCAC | Supports the connection of two independent PV strings from photovoltaic modules. |
| Single-phase residential solar setup | EMITER EM-215_DCAC | Specifically designed to operate with 1-phase electrical grids rated at 16A. |
| Large-scale solar system with 4 strings | EMITER EM-855_DCAC | Offers maximum capacity for 4 MPPT inputs and a robust main switch. |
The main product EMITER EM-41_DCAC is optimally suited for compact solar setups featuring a single MPPT tracker and a 3-phase 20A connection. Choose it if your inverter configuration relies on one string of panels and requires reliable Type 2 protection within a weather-resistant IP65 enclosure, whereas alternative models are better suited for multiple strings or different AC grid requirements.