SMA SI-TD-BOX-10 > Smartformer for Sunny Island

Set up Split-Phase Grids - Easier Than Ever

Transformer, control, and AC breaker box for allowing a single Sunny Island inverter to AC couple with a Sunny Boy grid tie inverter at 240VAC.
Load shedding and AC bypass are also included.

Specifications

Documentation

Detailed Description

The Smartformer is the complete solution for off-grid and backup plants of up to seven kilowatts. At the same time, it acts as a AC distributor and a 120/240-volt autotransformer. The transformer provides step-up and step-down options to supply loads with 120 V and 240 V using a Sunny Island and a Sunny Boy – with a high level of efficiency over the entire power spectrum. Thanks to the pre-wired bypass function, the PV plant can be bridged without problems via a robust switch for maintenance work. The optimized transformer overload protection and a load-shedding contactor provide extra protection to the system. The Smartformer makes the stand-alone power supply simple and reliable.

Simple

• Pre-wired AC distribution board
• Quick installation and commissioning
• Suitable for SI 4548 / 6048-US

Complete

• Bypass switch for direct grid operation
• Load-shedding contactor to prevent battery deep discharge
• Miniature circuit-breaker for PV and load

Efficient

• Max. efficiency: 99 percent
• Highest yield in the entire power range

Secure

• UL listed
• Optimized overload protection
• Warranty: 5 years as standard – extendable to 20 years

Documentation