1 Zone 120V Switching Relay w/ internal transformer -1 Spst line relay


The 1 Zone 120V Switching Relay with Internal Transformer is a key component for zoning applications in solar hot water systems. Its compact size, robust construction, and high-efficiency design make it a valuable addition to any installation. This device ensures optimal energy distribution, improving the system’s overall performance while keeping energy consumption minimal. Its easy installation and low maintenance requirements make it a cost-effective choice for solar hot water systems.

SKU: SmartMaxx-E-AC-120V-RELAY Category:

How to order? 

  • Order online or contact sales team directly
  • 24-hour online order confirmation
  • SunMaxx Solar™: solar hot water equipment manufacturer
  • Availability and production lead times subject to production queue

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This 1 Zone 120V Switching Relay with Internal Transformer is specially designed for zoning applications. It is a compact, highly efficient, and reliable device that ensures proper energy distribution within a solar hot water system.


  • Application: Zoning
  • Zones: 1
  • Width: 4-1/4″
  • Height: 5-1/4″
  • Amperage: 10.2
  • Power Method: 120V
  • Voltage: 120v
  • Depth: 2-5/16″
  • Ambient Conditions: 115 F max for 60 Hz, 105 F Max for 50 Hz
  • Relays: Spst Line Voltage
  • Switch Action: SPST
  • Connection Type: 2-Wire

Product Highlights The 1 Zone 120V Switching Relay with Internal Transformer is a high-performance SPST line relay. It is ideal for use in solar hot water systems, given its low energy consumption and superior efficiency.

Use this efficient and reliable 1 Zone 120V Switching Relay with an Internal Transformer to optimize energy distribution in your solar hot water system. This device will not only enhance your system’s performance but also reduce installation time and maintenance costs.

Why SunMaxx Solar

Investing in a complete solar hot water kit from a single manufacturer is essential for ensuring the longevity and efficiency of your solar hot water system. A streamlined approach to sourcing components simplifies the process of installation, maintenance, and servicing.

By choosing a single manufacturer for your solar hot water kit, you can benefit from comprehensive documentation for service and maintenance. This approach helps prevent issues arising from improperly installed or maintained systems. Studies show that over 60% of solar hot water systems fail due to incorrect installation or lack of proper maintenance.

Purchasing a complete kit from one manufacturer guarantees compatibility between components and streamlined support from the provider. This ensures that you have access to knowledgeable experts who can address any concerns or questions related to your specific system. Furthermore, a single manufacturer can provide a unified warranty, eliminating the need to deal with multiple companies in case of any issues.

In summary, investing in a complete solar hot water kit from a single manufacturer is a wise decision for homeowners and businesses alike. It ensures smooth installation, proper maintenance, and reliable long-term performance, maximizing the return on your investment and providing a sustainable hot water solution.