Cart
Checkout Secure
*No Sales Tax on US Orders! Extended 05/31/2019*

Got a Question? Call Us

(877) 242-2792

Mon-Sat 9am-6pm Eastern

SMA - Sunny Island 4548 - 4.5kW 48VDC Inverter/Charger 120V

Your Price:
$4,169.67
SI4548-US-10
Quantity
 
Checkout Secure
Checkout Secure

✔ FAST Shipping!
✔ LOWEST Online Price
✔ NO Sales Tax

Orders Processed Daily. Limited Stock. No Sales Tax Ends Soon.

4 Great reasons to buy from us:

  • Image of Secure Ordering
  • Image of 100% Satisfaction Guaranteed
  • Image of No Hassle, Easy Returns
  • Image of Fast & Secure Checkout!

The new SMA Sunny Island 4548-US and 6048-US inverters are based on the proven off-grid technology in the Sunny Island 5048-US but now feature 20 percent more power output. A maximum efficiency of 96 percent ensures peak production, which results in reduced diesel usage in rural communities. More flexible sizing allows for simplified system planning. And, with multicluster technology, up to 12 Sunny Islands can be integrated into off-grid power systems up to 100 kW in size.

The Sunny Island includes sine-wave output power at 120 VAC only. Two or four Sunny Island inverters can be stacked for 120/240 VAC input and output. Three Sunny Islands can also be stacked for a 120/208 VAC three phase input and output.  The Sunny Island inverters are bi-directional battery-based inverter/chargers that can be used completely off-grid, or for battery backup in grid-tie systems either with charge controllers or with grid-tie inverters using AC coupling.  They have low idle losses as well as a 100 A battery charger, and a battery disconnect. State-of-charge metering helps with battery management to ensure maximum battery life.

In off-grid systems, the Sunny Island can be used with any standard PWM or MPPT charge control, but will communicate with the MidNite Classic using the MNSICOMM box. It can also work with the US-40 Sunny Boy inverters in an AC-coupled system so long as the Sunny Boy inverter is set for off grid function. The frequency shift algorithm will work to make the Sunny Boy inverter back off power output to prevent the battery from too much charge. A generator can be connected to the Sunny Island’s AC input to provide backup and battery charging.

For grid-tied systems, the newest US-40 Sunny Boy inverters do not have RS485 capability so cannot communicate with the Sunny Island to change grid tie parameters to off grid. This means that the system will not be able to use frequency shift for battery charge control in a grid-tied backup system. The frequency shift in the Sunny Island will work with the newer Sunny Boy inverter in the same manner as with any other grid-tie inverter, causing it to turn on and off as the batteries are charged. In an off-grid only system, the US-40 Sunny Boy inverters can be set for off-grid use independently of the Sunny Island and will work with the frequency shift algorithm.

 

Features:

  • Max. efficiency: 96 percent
  • CEC efficiency: 94 % and 94.5 %
  • State of Charge Calculation
  • Intelligent battery management for longer battery lifespan
  • Systems from 2 kW to 100 kW
  • Extreme overload capacity
  • OptiCool active temperature management system
  • 5-year standard warranty

Specs:

  • Dimensions (inchs): 18.4 x 24.1 x 9.3
  • Grid Voltage: 120V
  • IP Rating: IP65
  • Power (watts): 4500
  • Voltage: 48V
  • Weight(lbs): 139
Our goal is to make your life as easy as possible so if you have any questions or concerns or need to return something you purchased, it's safe to assume we'll do our absolute best to help you get the products returned back to our appropriate warehouse with little to no cost to you.

   

Order Shipment & Tracking: You'll receive a confirmation email immediately after your order has been placed. We process all orders daily and send out tracking information within 5 business days of placing your order. If a product you've ordered is not in stock or is on back order, a member of our team will reach out within 24 hours to discuss how you'd like to move forward before charging your card.

Returns & Exchanges: Simply contact us for a returns number and send your item to our returns centre for fast processing. As an authorized dealer of all the brands you find on Shop Solar Kits, we abide by and follow the return policies of all our manufacturers. For more on this, check out our Shipping & Returns page or call us at 1-877-242-2792

   

Damaged Shipments: We always ask that you inspect the packaging of your item(s) when they arrive, in the off chance your order arrives damaged, please take photos right away and send them to info@shopsolarkits.com. From there we'll work with you to get the situation resolved ASAP.

Cancellations & Refunds: contact us within 24 hours of placing your order and we'll gladly cancel it for you. If it's been more than 24 hours and your order has shipped, you may be responsible for any return shipping charges if necessary. Also please note, refunds can only be issued to the original credit card that was used.

Here are 5 great reasons to buy from us:

Quality Service, Guaranteed. If your product doesn't fit, it breaks, you've changed your mind or for no reason whatsoever simply reach out to us and we'll cheerfully work to make you happy.

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund asap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from Shop Solar Kits is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.

We want to give you the utmost confidence choosing Shop Solar Kits so we guarantee that if you find a lower price on a competitors web-store within 14 days of making your purchase with us, we will match that by issuing you a refund or gift card for the difference! Simply contact us with a link to the product on the competitor's store - we'll verify the price and then get in touch with you directly about your refund. This also holds true for our own products as well, if you see our own prices are reduced within 14 days of purchase, we will also issue you a refund for the difference! Please see our Price Match page for terms and conditions.

Ordering from Shop Solar Kits is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.

We use the most trusted and secure payment processor available today that has been audited by a PCI-certified auditor and is certified to PCI Service Provider Level 1. This is the most stringent level of certification available in the payments industry. To accomplish this, they make use of best-in-class security tools and practices to maintain a high level of security at Stripe.

We also offer the ability to pay with PayPal.

Feel free to call us if you have any questions or concerns at 1-877-242-2792.

The new SMA Sunny Island 4548-US and 6048-US inverters are based on the proven off-grid technology in the Sunny Island 5048-US but now feature 20 percent more power output. A maximum efficiency of 96 percent ensures peak production, which results in reduced diesel usage in rural communities. More flexible sizing allows for simplified system planning. And, with multicluster technology, up to 12 Sunny Islands can be integrated into off-grid power systems up to 100 kW in size.

The Sunny Island includes sine-wave output power at 120 VAC only. Two or four Sunny Island inverters can be stacked for 120/240 VAC input and output. Three Sunny Islands can also be stacked for a 120/208 VAC three phase input and output.  The Sunny Island inverters are bi-directional battery-based inverter/chargers that can be used completely off-grid, or for battery backup in grid-tie systems either with charge controllers or with grid-tie inverters using AC coupling.  They have low idle losses as well as a 100 A battery charger, and a battery disconnect. State-of-charge metering helps with battery management to ensure maximum battery life.

In off-grid systems, the Sunny Island can be used with any standard PWM or MPPT charge control, but will communicate with the MidNite Classic using the MNSICOMM box. It can also work with the US-40 Sunny Boy inverters in an AC-coupled system so long as the Sunny Boy inverter is set for off grid function. The frequency shift algorithm will work to make the Sunny Boy inverter back off power output to prevent the battery from too much charge. A generator can be connected to the Sunny Island’s AC input to provide backup and battery charging.

For grid-tied systems, the newest US-40 Sunny Boy inverters do not have RS485 capability so cannot communicate with the Sunny Island to change grid tie parameters to off grid. This means that the system will not be able to use frequency shift for battery charge control in a grid-tied backup system. The frequency shift in the Sunny Island will work with the newer Sunny Boy inverter in the same manner as with any other grid-tie inverter, causing it to turn on and off as the batteries are charged. In an off-grid only system, the US-40 Sunny Boy inverters can be set for off-grid use independently of the Sunny Island and will work with the frequency shift algorithm.

 

Features:

  • Max. efficiency: 96 percent
  • CEC efficiency: 94 % and 94.5 %
  • State of Charge Calculation
  • Intelligent battery management for longer battery lifespan
  • Systems from 2 kW to 100 kW
  • Extreme overload capacity
  • OptiCool active temperature management system
  • 5-year standard warranty

Specs:

  • Dimensions (inchs): 18.4 x 24.1 x 9.3
  • Grid Voltage: 120V
  • IP Rating: IP65
  • Power (watts): 4500
  • Voltage: 48V
  • Weight(lbs): 139
Our goal is to make your life as easy as possible so if you have any questions or concerns or need to return something you purchased, it's safe to assume we'll do our absolute best to help you get the products returned back to our appropriate warehouse with little to no cost to you.

   

Order Shipment & Tracking: You'll receive a confirmation email immediately after your order has been placed. We process all orders daily and send out tracking information within 5 business days of placing your order. If a product you've ordered is not in stock or is on back order, a member of our team will reach out within 24 hours to discuss how you'd like to move forward before charging your card.

Returns & Exchanges: Simply contact us for a returns number and send your item to our returns centre for fast processing. As an authorized dealer of all the brands you find on Shop Solar Kits, we abide by and follow the return policies of all our manufacturers. For more on this, check out our Shipping & Returns page or call us at 1-877-242-2792

   

Damaged Shipments: We always ask that you inspect the packaging of your item(s) when they arrive, in the off chance your order arrives damaged, please take photos right away and send them to info@shopsolarkits.com. From there we'll work with you to get the situation resolved ASAP.

Cancellations & Refunds: contact us within 24 hours of placing your order and we'll gladly cancel it for you. If it's been more than 24 hours and your order has shipped, you may be responsible for any return shipping charges if necessary. Also please note, refunds can only be issued to the original credit card that was used.

Here are 5 great reasons to buy from us:

Quality Service, Guaranteed. If your product doesn't fit, it breaks, you've changed your mind or for no reason whatsoever simply reach out to us and we'll cheerfully work to make you happy.

Returns are easy, simply contact us for a returns number and send your item to our returns centre for fast processing. We'll get you a replacement or refund asap!

In the unlikely event that you find your item cheaper at another online store, just let us know and we'll beat the competitor's pricing hands-down.

We insist that you love everything you buy from us. If you're unhappy for any reason whatsoever, just let us know and we'll bend over backwards to make things right again.

Ordering from Shop Solar Kits is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.

We want to give you the utmost confidence choosing Shop Solar Kits so we guarantee that if you find a lower price on a competitors web-store within 14 days of making your purchase with us, we will match that by issuing you a refund or gift card for the difference! Simply contact us with a link to the product on the competitor's store - we'll verify the price and then get in touch with you directly about your refund. This also holds true for our own products as well, if you see our own prices are reduced within 14 days of purchase, we will also issue you a refund for the difference! Please see our Price Match page for terms and conditions.

Ordering from Shop Solar Kits is 100% safe and secure so you can rest easy. Your personal details are never shared, sold or rented to anyone either.

We use the most trusted and secure payment processor available today that has been audited by a PCI-certified auditor and is certified to PCI Service Provider Level 1. This is the most stringent level of certification available in the payments industry. To accomplish this, they make use of best-in-class security tools and practices to maintain a high level of security at Stripe.

We also offer the ability to pay with PayPal.

Feel free to call us if you have any questions or concerns at 1-877-242-2792.

Related Products

SMA - Sunny Island 4548 - 4.5kW 48VDC Inverter/Charger 120V

$4,169.67

Don't Take Our Word For it! Here's What Our Customers Think:

Added to cart!
*No Sales Tax on US Orders! Extended 05/31/2019* Questions? Call 1-877-242-2792 Best Online Prices! Order Today! Call for questions: 877-242-2792 *No Sales Tax on US Orders! Extended 05/31/2019* You Have Achieved Free Shipping