# Fronius Verto 33.3 / SPD 1+2 Inventer

- **Brand:** Fronius
- **SKU:** FRN-VERTO-33.3-SPD12
- **GTIN:** 9007947628299
- **MPN:** 4210406
- **Price:** 2,999.00 EUR
- **Availability:** In stock
- **Categories:** Inverters

High-performance three-phase solar inverter with 33.3 kW AC output, four MPPTs, and integrated surge protection (SPD Type 1+2), designed for commercial and industrial photovoltaic systems.

The Fronius Verto 33.3 is a high-performance, three-phase inverter designed for commercial and large residential photovoltaic systems. With four independent MPP trackers and integrated Type 1+2 surge protection on both AC and DC sides, it ensures optimal energy yields even under challenging conditions like partial shading. Its advanced safety features, including Arc Fault Circuit Interruption (AFCI), combined with a high efficiency of up to 97.47%, make it a reliable choice for maximizing solar energy production.

**Specifications:**

**Power Output:** 33.3 kW AC nominal power

**MPP Trackers:** 4 independent trackers with 2 inputs each

**Efficiency:** Up to 97.47% maximum efficiency

**Surge Protection:** Integrated AC and DC Type 1+2 SPD

**Safety:** Arc Fault Circuit Interruption (AFCI) for enhanced protection

**Cooling:** Active cooling system for optimal performance

**Installation:** Suitable for both indoor and outdoor setups (IP66 rated)

**Monitoring:** Integrated data logger with Wi-Fi, LAN, and RS485 interfaces

**Input (DC):**

Max. PV generator power: 50 kWpeak

Usable MPP voltage range: 150 – 870 V

Max. input current per MPPT: 28 A

Max. short-circuit current per MPPT: 50 A

**Output (AC):**

Nominal output power: 33.3 kW

Max. output power: 33.3 kVA

Max. output current: 53.7 A

Grid connection: 3~ (N)PE 400/230 V

Frequency: 50 Hz (range: 45–65 Hz)

**General:**

Dimensions (H x W x D): 865 x 574 x 278 mm

Weight: 44.75 kg

Operating temperature range: -40°C to +60°C

Max. altitude: 4000 m

Night-time consumption: <16 W

Sound emission: 54.6 dB(A)

**Communication Interfaces:**

Ethernet LAN RJ45 (10/100 Mbit)

WLAN (802.11b/g)

2x RS485 (Modbus RTU SunSpec / Fronius Smart Meter)

6x digital in/out + 6x digital in

Integrated web server and data logger

**Protection and Safety:**

Integrated DC disconnector

Residual Current Monitoring Unit (RCMU)

Overvoltage category: DC 2 / AC 3

## Specifications

| Spec | Value |
| --- | --- |
| Thd | < 1 % |
| Weight | 41.75 kg |
| Cooling | Active cooling technology |
| Display | Status LEDs |
| Voltage | 600 V DC |
| Grid tie | Yes, with anti-islanding protection |
| Power kw | 33.3 |
| Warranty | 5 |
| Frequency | 50 / 60 Hz (45–65 Hz) |
| Dimensions | 574 × 865 × 279 mm |
| Monitoring | App-based remote monitoring |
| Mppt count | 4 |
| Mppt range | 150–870 V DC |
| Peak power | 33,300 VA |
| Phase type | three-phase |
| Noise level | < 54.6 dB(A) |
| Max pv power | 50,000 W |
| Power factor | 0 – 1 |
| Power output | 33,300 W |
| Communication | Ethernet (LAN), RS485 |
| Compatibility | Compatible with standard photovoltaic modules and grid connections |
| Input voltage | 150–1000 V DC |
| Inverter type | standard |
| Nominal power | 33,300 W |
| Certifications | CE, IEC, VDE, EN 50549, AS/NZS 4777 |
| Max pv current | 28 A per MPPT |
| Max pv voltage | 1,000 V DC |
| Output voltage | 380 / 400 / 440 / 480 V AC |
| Mounting options | Wall mounting bracket included |
| Installation type | Wall-mounted |
| Protection rating | IP66 |
| Parallel capability | Yes – multiple units can operate in parallel in grid-tied systems |
| Operating temperature | –40 °C to +60 °C |