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Samlex STS-30 30 Amp Automatic Transfer Switch with Inverter Quick Connect

Manufacturer

Samlex

<p>Since 1991, Samlex has established itself as a trusted manufacturer of power conversion and energy management equipment, serving customers across more than 90 countries. Based in Burnaby, British Columbia, this privately-held company has built a reputation for engineering reliable solutions that meet the demanding requirements of mobile, marine, and off-grid power applications.</p><h3>Power Solutions for Diverse Applications</h3><p>Samlex specializes in DC-AC power inverters, including both pure sine wave and modified sine wave models that convert battery power into usable AC electricity. Their product portfolio also encompasses <a href="/7541-samlex-battery-charger-14307">battery chargers</a> designed to maintain and restore batteries in RVs, work trucks, boats, and remote installations. Whether you're outfitting a commercial fleet, upgrading a recreational vehicle, or building an off-grid power system, Samlex offers power management components engineered for consistent performance.</p><h3>Battery Charging and Power Management</h3><p>The company's extensive <a href="/7541-samlex-battery-chargers-200141">battery charging solutions</a> address various voltage requirements and battery chemistries, from traditional flooded lead-acid to AGM and gel cell configurations. Samlex has developed charging technology that optimizes battery life while preventing overcharge damage. For vehicle applications requiring dual battery setups, their <a href="/7541-samlex-battery-isolators-voltage-sensitive-relays-200144">battery isolators and voltage sensitive relays</a> ensure that auxiliary batteries charge from the alternator while protecting the starting battery from discharge.</p><h3>Complete Vehicle Power Systems</h3><p>Beyond chargers and isolators, Samlex manufactures <a href="/7541-samlex-vehicle-battery-2476">vehicle batteries</a> designed to withstand the vibration and temperature extremes common in mobile environments. Their <a href="/7541-samlex-inverters-200588">inverters</a> range from compact models for powering laptops and small electronics to high-capacity units capable of running power tools, refrigerators, and other demanding loads. This comprehensive approach allows installers and DIY enthusiasts to source multiple components from a single manufacturer known for quality and compatibility.</p><h3>Proven Across Industries</h3><p>Samlex products serve diverse sectors including telecommunications, electrical contracting, emergency services, marine transportation, and renewable energy. Their equipment appears in everything from utility service trucks to sailboats, from food delivery vehicles to remote weather stations. This broad market presence reflects the versatility and durability that professional users demand from their power conversion equipment.</p><p>With over three decades of manufacturing experience and distribution reaching across North America and beyond, Samlex continues to deliver power solutions that combine electrical efficiency with practical reliability for mobile and stationary applications alike.</p>

Part Number

STS-30
06/23/2036 10:59 AM
Sale Price

$332.07

1 left at this price

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Samlex STS-30 is a 30 amp automatic transfer switch designed to seamlessly manage power sources in RVs, marine applications, and off-grid systems. This intelligent switching device automatically transitions between two separate AC input sources—such as utility power and generator, utility power and inverter, or generator and inverter—ensuring uninterrupted power to your electrical system.

Key Features:

  • Rated capacity of 30 amps at 120 VAC, suitable for generators up to 3.6 kVA
  • Heavy-duty Double Pole Double Throw (DPDT) relay switches both line and neutral for safe, complete circuit isolation
  • Flexible installation options: line side of main breaker panel for whole-system switching or load side for dedicated circuits only
  • DIP switch selectable time delay of 20-25 seconds when transferring to generator, preventing surge damage
  • Includes standard North American power cord for connection to 15 amp NEMA 5-15R receptacles on generators or inverters up to 1800 VA (upgradeable to 30 amp cord for full capacity)
  • Built-in NEMA 5-20R duplex receptacle provides convenient connection point for battery chargers
  • Quick connect design simplifies installation and integration with Samlex inverter systems

The STS-30 eliminates the need for manual switching between power sources, automatically prioritizing shore power when available and seamlessly transferring to backup power when disconnected. Ideal for RV enthusiasts, boaters, and anyone requiring reliable automatic power management.

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