Ferroamp EnergyHub cabinet 3-phase 28K – EnergyHub XL 28 kVA in 19″ rack

The Ferroamp EnergyHub Cabinet 28K is based on EnergyHub XL technology: a bidirectional 3-phase inverter that converts energy from AC → DC as well as from DC → AC.
It connects the public grid (230/400 VAC) to the Ferroamp DC nanogrid (760 V DC), to which you connect PV via Solar String Optimisers (SSO), batteries and (optionally) DC loads, among others. The big advantage: a tight system design that easily grows with you.

Why a “cabinet” version?

• Neat in 19″ rack: uncluttered installation, ideal for technical rooms and business environments.
• Service-friendly: clearly separated AC/DC connection points and space for neat cable routing.
• Scalable: Ferroamp is thought modular; expand without replacing your entire base.

Key specifications (28K / 28 kVA)

AC side (3-phase)

• Nominal power: 28 kVA
• Rated voltage: 230/400 VAC
• Mains frequency: 50 Hz
• AC connection: 5-wire (L1, L2, L3, N, PE)
• Circuit breaker: MCB type B, 40 A

DC side (Ferroamp DC bus)

• DC bus voltage (nominal): 760 VDC
• DC bus range: 720 – 800 VDC
• Max. DC bus current: 38 A
• DC bus connection: 4-wire (DC+, M, DC-, PE)
• Communication: narrowband PLC (power line communication) over the DC bus

Efficiency

• Max. efficiency DC → AC: 98.5%
• Max. efficiency AC → DC: 98.0%

Measuring, controlling and connecting

• Measurement data: AC ×3 (voltages, currents, phase angles) and DC (voltage, current)
• Connections: Ethernet, USB, CAN
• Max. DC bus cable length: 200 m (for longer: design on request)

Enclosure and installation (rack)

The cabinet version is a 19″ rack cabinet. Ferroamp specifies two common sizes:

• 24U rack: 1265 × 600 × 800 mm (H × W × D), weight 82 kg (without XL modules), terminals up to max 70 mm² (AC/DC bus)
• 42U rack: 2065 × 600 × 800 mm (H × W × D), weight 130 kg (without XL modules), terminals up to max. 120 mm² (AC/DC bus)

Ambient conditions

• Temperature: -10°C to +45°C (power may decrease at higher temperatures)
• Humidity: 0 – 95% RH (non-condensing)
• Protection rating: IP21 (indoor/technical room)

Safeguards and standards

• Protections: AC overvoltage protection, DC overvoltage protection, DC bus short circuit, overheating
• LVD: EN 62109-1, EN 62109-2
• EMC: EN 61000-6-2, EN 61000-6-3
• Mains connection: EN 50438:2013
• RoHS: yes

Installation tips (nice and practical)

• IP21 = indoor: place the cabinet in a dry technical room with sufficient ventilation.
• Reserve space in the rack: take into account cable radius, airflow and service access.
• Dimension mains protection neatly: work according to the design with MCB type B 40 A and appropriate cabling/main connection.
• Keep DC bus clear: short, logical routes and clear labelling (DC+, M, DC-, PE).
• For growth plans: Ferroamp is made for expansion – take this into account in space and infrastructure.