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SMA Sunny Boy 3000TL-US-22 > 3000 Watt 208/ 240 Volt Inverter with Emergency Power Switch
SMA Sunny Boy 3000TL-US-22 - 3000 Watt 208/ 240 Volt Inverter with Emergency Power Switch

Warranty: 10 Years
Compliance: Buy American

Availability: This item is no longer available.
Product Code: SMA-3000TL-US

Description Videos Datasheet

SMA 3000 Watt 208 / 240 VAC Grid Tie Inverter

These transformerless inverters feature an emergency power supply so that if your utility goes down during the day, you can still get power from your panels, without adding batteries.


Model Sunny Boy 3000TL-US-22
Series Sunny Boy
Manufacturer SMA Solar


Type Grid Tie - Central
Operating Temperature Range -40° C - 60° C
Enclosure NEMA 3R
Cooling Convection
Dimensions (W x H x D) Inverter: 19.3" x 20.5" x 7.3"
Disconnect: 7.4" x 11.7" x 7.5"
Weight Inverter: 57 lbs Disconnect: 8 lbs
Shipping Method Ground

Input (DC)

Recommended PV Power (STC) 3200 W
Max Voltage 600 V
Peak Power Tracking Voltage 175 V - 480 V
Min Start Voltage 150 V
Max Current 15 A

Output (AC)

Maximum Output Power 3000 W
Nominal AC Voltage 208 V / 240 V
Voltage Range 208 V: 183 V - 229 V
240 V: 211 V - 264 V
Frequency 60 Hz
Max Current 15 A


Data Sheet SMA Sunny Boy TL-US
Warranty SMA Solar

Detailed Description

The Sunny Boy 3000TL-US/4000TL-US/5000TL-US represents the next step in performance for UL certified inverters. Its transformerless design means high efficiency and reduced weight. Maximum power production is derived from wide input voltage and operating temperature ranges. Multiple MPP trackers and OptiTrac Global Peak mitigate the effect of shade and allow for installation at challenging sites. A unique Emergency Power Supply feature provides daytime power even in the event of a grid outage. High performance, flexible design and an innovative feature set make the Sunny Boy TL-US series the first choice among professionals.

Emergency Power Supply

One of many unique features to the TL-US residential series is its innovative Emergency Power Supply ability. With most grid-tied inverters, when the grid loses power, so does the solar-powered home. SMA's solution allows daytime energy to be isolated from the grid and be fed directly to the home via a dedicated power socket, providing residents with access to power as long as the PV system generates electricity.

Simple installation

As a transformerless inverter, the TL-US residential series is lighter in weight than its transformer-based counterparts, which makes lifting and transporting the new inverter easier than before. A new wall mounting plate features anti-theft security and makes hanging the inverter quick and easy. A simplified DC wiring concept allows the DC Disconnect to be used as a wire raceway, saving labor and materials.

Leading monitoring and control solutions

The new TL-US residential line features more than high performance and a large graphic display. The monitoring and control options provide users with an outstanding degree of flexibility. Integrated Zigbee, a wireless communications standard often used for home energy management, and numerous wired options allows for a highly controllable inverter and one that can still be monitored on Sunny Portal from anywhere on the planet via an Internet connection. Whether communicating through Zigbee or SMA's new wired, plug-and-play WebConnect, installers can find an optimal solution to their monitoring needs.

Transformerless design

The Sunny Boy 3000TL-US / 4000TL-US / 5000TL-US are transformerless inverters, which means owners and installers benefit from high efficiency and lower weight. A wide input voltage range also means the inverters will produce high amounts of power under a number of conditions. Additionally, transformerless inverters have been shown to be among the safest string inverters on the market. An industry first, the TL-US series has been tested to UL 1741 and UL1699B and is in compliance with the arc fault requirements of NEC 2011.

Increased energy production

OptiTrac Global Peak, SMA's shade-tolerant MPP tracking algorithm, quickly adjusts to changes in solar irradiation, which mitigates the effects of shade and results in higher total power output. And, with two MPP trackers, the TL-US series can ably handle roofs with multiple orientations or specific shaded areas. An extended operating temperature range of -40 °F to +140 °F ensures power is produced in all types of climates and for longer periods of time than with most traditional string inverters.

Frequently Asked Questions
  • What makes these new SMA inverters so exciting?

    In a pure grid-tie system, when the utility grid goes down, so does your solar array. In the grand scheme of things, this makes sense: imagine if you're working on the utility grid and you get electrocuted because someone's solar array is still feeding power into it? On the other hand, it can be a pain to those who've invested in solar so they can have power all the time.

    The normal way to get around this is to purchase a special hybrid inverter and add some deep cycle batteries to your array to store excess power so that during an outage, you can switch to off-grid power. While this is a great idea, batteries can add an extra layer of complexity to sizing your system.

    SMA's TL-US inverter offers another option, allowing you to literally plug your important electronics into an outlet attached to the unit during full daylight.

  • Under what circumstances will the emergency power switch work?

    If the utility grid is down and you still have full daylight, you can manually flip the switch on the emergency power switch and then plug what you need to power into the attached socket.

  • I've heard that this inverter can handle multiple roof orientations. What does this mean and how does it work?

    From SMA:

    Traditionally, solar professionals had different ways of dealing with a site containing multiple roof orientations. A string inverter could be used on each roof, a single inverter for both roofs or micro inverters on both roofs. Micro inverters are a good solution since they can take advantage of the module level MPPT to extract the most energy from the losses associated with mismatched roofs. String inverters have been given a back seat to these types of applications because of the perceived mismatch losses that these types of inverters cannot compensate for. Or can they?

    SMA’s new 3000TL-US/4000TL-US/5000TL-US family will have dual MPPT channels, which will give them the ability to track two different array orientations while reducing the mismatch losses. In fact, you can even use different string lengths on each channel as well as different module types if your design warrants it. Both arrays are processed separately and their outputs combined after the power conversion. This means more harvest from mismatched arrays but with the benefit of using a single string inverter.

Average Customer Review: 5 of 5 Total Reviews: 1 Write a review.

  1 of 1 people found the following review helpful
Great replacement for my old Sunny Boy 2500-US August 4, 2013
Reviewer: MC from Bayville, NY United States  
I purchased one of these to replace a 9 year old Sunny Boy SWR 2500 inverter that died. It was less expensive than purchasing a new 2500-US direct from SMA.

Installation was relatively straightforward, but this unit is taller than the 2500-US, so you may need to change the wiring to the inverter.

I've had it installed and producing for over a month. The 3000TL-US produces more electricity than either of my older SWR 2500 inverters, possibly because it has a lower start-up voltage.

Shipment from Ecodirect was a bit slow, but otherwise very pleased with the service and my new inverter.

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