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tigo|SKU:TSS-50-US

Tigo 50A MLO Auto Transfer Switch for Seamless Backup Power

Automated Backup Power When the Grid Goes Down

Hands-off power transfer — Automatically switches during outages
11,400 W backup capacity — Powers critical residential circuits
Built-in manual bypass — Maintain control when needed
Tigo EI app monitoring — Track system data remotely
Compact 34.3 lb build — Fits residential installations easily
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$386.95

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Tigo 50A MLO Auto Transfer Switch
Tigo 50A MLO Auto Transfer Switch
$386.95

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In the box

  • Tigo 50A MLO Auto Transfer Switch
Tigo 50A MLO Auto Transfer Switch
Tigo 50A MLO Auto Transfer Switch for Seamless Backup Power
$386.95

Automated Backup Power When the Grid Goes Down

The Tigo 50A MLO Auto Transfer Switch is a vetted, compact component designed to keep your critical loads running during outages. Rated at 50 amps, it automatically shifts power between the utility grid and your backup source without manual intervention. Engineered for Tigo hybrid inverters, this self-reliant unit protects your energy investment by ensuring smooth transitions and shielding connected electronics. With a manual bypass switch for added control, it delivers dependable, hands-off operation for residential energy storage. Ships free.

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Automated Power Transfer
Manual Bypass Switch
Tigo EI App Monitoring
Critical Load Backup
11,400 W
Backup Power Rating
240 V
Nominal Voltage
48 A
Continuous Backup Current
Dependable Power Transfer When Outages Hit

Dependable Power Transfer When Outages Hit

The biggest risk with backup power setups is a transfer switch that fails during the exact moment you need it. The Tigo 50A MLO eliminates that risk through its automatic transfer mechanism, which shifts your critical circuits to backup power the instant the grid drops—no manual intervention required. Rated for 11,400 W from backup and 48 A continuous current, this switch handles real residential loads without hesitation. It operates reliably from -13 to 122 °F, so extreme temperatures won't compromise performance. Off Grid Vault curated this unit because it delivers consistent, hands-off power transfer that actually works when it matters most.

Monitor Your Backup System From Anywhere

Monitor Your Backup System From Anywhere

The Tigo EI mobile app and portal give you comprehensive monitoring data for your backup system, so you always know your power status without walking to the panel. This integration means you can verify that your transfer switch is ready, check that your critical circuits are covered, and confirm system health remotely. For anyone managing a homestead or remote property, that visibility removes guesswork from backup preparedness. The 240 V nominal voltage and 50/60 Hz frequency compatibility ensure it aligns with standard residential systems. Off Grid Vault values this kind of real-time transparency because it lets you verify performance instead of just hoping your equipment is doing its job.

Manual Bypass Keeps You In Control

Manual Bypass Keeps You In Control

Even with fully automatic operation, there are situations where you want direct control over your power source. The integrated Manual Bypass Switch on the Tigo 50A MLO lets you manually manage power transfer whenever the situation calls for it—during maintenance, system testing, or troubleshooting. At 34.3 lb and measuring 18.9 by 10.8 by 4.1 in, this switch is compact enough for straightforward residential installation without demanding excessive panel space. This dual-mode capability means you are never locked into one operating method. Off Grid Vault recognizes that self-reliant homeowners need flexibility, and this bypass functionality delivers exactly that without adding unnecessary complexity to your backup setup.

Compatibility Check

Ensure this transfer switch aligns with your residential energy storage setup before installation.

  • System operates on a 240 V nominal voltage
  • Backup source continuous current does not exceed 48 A
  • Wall space accommodates an 18.9 in wide enclosure

Ideal Applications

Built for homeowners who demand reliable power continuity in any scenario.

Residential Energy Storage
Essential Circuit Backup
Hybrid Inverter Systems

Full specifications

At a glance

Dimensions
18.9/10.8/4.1 in
Power
240 V
Full specifications13 data points across 4 categories

Dimensions

Dimensions18.9/10.8/4.1 in
Weight34.3 lb

Power & Performance

Inverter Input200 A
Nominal voltage240 V
Nominal frequency50/60 Hz
Maximum power10,000 W
Maximum continuous current42 A
Rated AC power from backup11,400 W
Maximum AC power from backup11,400 W
Continuous current from backup48 A

Materials

HousingSee product page

Compliance & Warranty

AC circuit breakernone
Operating temperature-13 – 122 °F

The Off Grid Vault Promise

We stand behind the gear we sell because your off-grid build depends on it.

Vetted EquipmentEvery product is rigorously evaluated for real-world performance and build quality before it makes the cut.
Ships FreeYour order is on its way with completely free shipping, no minimums or conditions required.
30-Day ReturnsNot the right fit for your setup? Return it within 30 days for a hassle-free refund.
★★★★★
“Installed this ATS with my Tigo hybrid inverter about three months ago. Had a grid outage last week and the transfer happened so fast my refrigerator never even cycled off. The EI app confirmed everything was running on backup within seconds. Solid build quality, no issues. Wish I had done this upgrade sooner.”
F
First L.Boise, ID

Tigo 50A MLO Auto Transfer Switch (ATS) | Backup/Grid

The Tigo 50A MLO Auto Transfer Switch is a compact and dependable solution for managing backup power in residential energy storage systems. Rated at 50 amps, it automatically transfers power between the utility grid and a connected backup source during outages, allowing critical circuits to remain energized without the need for manual switching. This automatic operation helps ensure a smooth transition during power interruptions while protecting connected loads.

Designed for compatibility with Tigo hybrid inverters and energy storage systems, the MLO configuration supports flexible installation for partial-home or critical-load backup applications. Its durable construction and streamlined design make it well suited for residential environments where reliability and simplicity are essential. The Tigo 50A MLO Auto Transfer Switch provides consistent, hands-off power transfer to support dependable backup energy operation.


Tigo 50A ATS Specs

  • Inverter Input: 200 A
  • Nominal voltage: 240 V
  • Nominal frequency: 50/60 Hz
  • Maximum power: 10,000 W
  • Maximum continuous current: 42 A
  • Rated AC power from backup: 11,400 W
  • Maximum AC power from backup: 11,400 W
  • Continuous current from backup: 48 A
  • AC circuit breaker: none
  • Dimensions: 18.9/10.8/4.1 in
  • Weight: 34.3 lb
  • Operating temperature: -13 – 122 °F


Tigo 50A ATS Features

  • Enables automated whole-home or essential-load backup
  • Supports increased backup power and duration by connecting a home generator (200 A w/ generator support model)
  • Supports increased backup power and duration by connecting a home generator (200 A w/ generator support model)
  • Provides comprehensive monitoring data with the Tigo EI mobile app and portal
  • Reduces main panel upgrades and derating with integrated service disconnects (200 A models)
  • Manual Bypass Switch allows for manual control if needed


Your Satisfaction with Tigo Energy is Guaranteed:

  • 11-Year Limited Warranty
  • Lowest Price Guarantee

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SKU: TSS-50-US Category: Brand:

The Off Grid Vault Promise

We stand behind the gear we sell because your off-grid build depends on it.

Vetted Equipment Every product is rigorously evaluated for real-world performance and build quality before it makes the cut.
Ships Free Your order is on its way with completely free shipping, no minimums or conditions required.
30-Day Returns Not the right fit for your setup? Return it within 30 days for a hassle-free refund.

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About tigo Solar Accessories

tigo is a trusted manufacturer of premium solar accessories. OffGridVault is an authorized dealer offering the full tigo lineup with free delivery, price match guarantee, and expert support.

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