SolarEdge SE66.6K-RW00IBNC4 – 66.6 kW 3-phase Synergy Manager (without Synergy Units)

The SolarEdge SE66.6K-RW00IBNC4 is the Synergy Manager / base unit of a 66.6 kW 3-phase SolarEdge Synergy system. This unit contains the AC and DC connections, communications, protection and control, but is supplied without Synergy Units. For a fully functioning inverter configuration, you need two more Synergy Units, which are ordered separately.

When combined with the right Synergy Units and SolarEdge power optimisers, you build a powerful, DC-optimised PV system with panel-level monitoring, high efficiency and comprehensive protection – ideal for large commercial and agricultural installations.

What do you get with the SE66.6K-RW00IBNC4?

This item is a 66.6 kW Synergy Manager and includes:

• Synergy Manager enclosure for an SE66.6K configuration (3-phase, 380/400 V grid).
• AC and DC connection compartments with separate cabling.
• MC4 connectors for the DC side.
• Integrated DC overvoltage protection (Type II) and DC fuses (25 A).
• Integrated DC safety switch.
• Communication board with RS485, Ethernet and optional WiFi/4G via accessories.

The actual conversion from DC to AC takes place in the Synergy Units. Without these power modules, the Synergy Manager itself provides no power.

Main advantages of the SolarEdge SE66.6K Synergy Manager

• Designed for 66.6 kW 3-phase systems – basic unit for large commercial and agricultural PV installations on 3×400 V + N. :contentReference[oaicite:1]{index=1}
• Modular Synergy concept – a complete inverter consists of 2 Synergy Units + 1 Synergy Manager, making installation and service easier. :contentReference[oaicite:2]{index=2}
• Quick commissioning – built-in pre-commissioning automatically checks cabling and components before grid connection.
• Built-in DC protections – DC switch, Type II DC-SPD and fuses already integrated in the Manager.
• Panel level monitoring (with optimisers) – full visibility via the SolarEdge monitoring portal.
• Lightweight and compact – only approx. 18 kg, making assembly by two people easy. :contentReference[oaicite:4]{index=4}
• Separated AC and DC – neat, clear connection and easier service.

System features in a complete 66.6 kW configuration

In a fully built-up SE66.6K configuration (Synergy Manager + 2 Synergy Units), the following system values apply according to the SolarEdge datasheet:

AC output (3-phase, system level)

• Rated AC active output power: 66,600 W
• Maximum apparent AC power output: 66,600 VA
• Rated mains voltage: 380/220 V or 400/230 V (L-L / L-N)
• Voltage range (L-L / L-N): approx. 304-437 V / 176-253 V and 320-478 V / 184-264.5 V
• Mains frequency: 50/60 Hz ± 5%
• Maximum continuous output current (per phase): 96.5 A
• Power factor: adjustable from -0.2 to 1
• THD: ≤ 3%

DC side (system level)

• Maximum DC power (STC, system): 116.550 W
• Maximum DC power per Synergy Unit: 58,275 W
• Maximum DC voltage: 1,000 Vdc
• Operating voltage range: 680 – 1,000 Vdc
• Maximum DC input current: 2 × 48.25 A

Efficiency & features

• Maximum inverter efficiency: up to 98.3%
• European efficiency: approx. 98%
• Built-in PID mitigation (active at night) for higher long-term panel yield.
• Built-in arc protection (AFCI) and optional rapid shutdown on AC disconnection.
• Integrated and replaceable RS485 and DC SPDs (Type II), optional AC SPD Type II.

Note: the above values apply to the complete system. This Synergy Manager forms the basis; the Synergy Units together with the Manager determine the final output.

Installation tips for the SE66.6K Synergy Manager

• 1. Plan your configuration in advance
  Decide which Synergy Units you will apply (2 units for SE66.6K) and check the combination with the official SolarEdge datasheet and design software.
• 2. Wall space and positioning
  Reserve enough space for the Synergy Manager as well as the two Synergy Units. The Manager measures approx. 360 × 560 × 295 mm (h × w × d) and weighs approx. 18 kg. Leave enough free space for ventilation and service. :contentReference[oaicite:5]{index=5}
• 3. Keep AC and DC cabling separate
  Make use of the separate AC and DC compartments in the Manager. Route DC cables neatly with MC4 and ensure correct earthing and selectivity according to SolarEdge guidelines.
• 4. Use pre-commissioning
  Once Manager and Synergy Units are connected, use the pre-commissioning function in SetApp to have strings, optimisers and cabling automatically tested before grid connection.
• 5. Activate monitoring directly
  Connect the installation to the SolarEdge monitoring portal via Ethernet or optional WiFi/4G. This way you have panel-level visibility and can quickly pinpoint faults.

When to choose this “without Synergy Units” variant?

The SE66.6K-RW00IBNC4 Synergy Manager without Synergy Units is particularly interesting when you:

• Have an existing SE66.6K installation where only the Manager needs to be replaced.
• Already have Synergy Units in stock and only need a loose Manager.
• Want to hold service and spare parts for larger projects.

Buy SolarEdge SE66.6K-RW00IBNC4 Synergy Manager from Radiant Green

At Stralendgroen you can order the SolarEdge SE66.6K-RW00IBNC4 as a separate Synergy Manager for new projects or as a replacement unit in existing systems. Naturally, we also supply the matching Synergy Units, optimisers and other accessories.

Do you doubt whether this Manager will fit into your existing configuration, or do you want to make sure you choose the right combination of Synergy Units and optimisers? Send us your installation plan or serial numbers – we will gladly work with you to ensure that your commercial installation is technically correct and generates maximum returns.