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The E-SAFE® II hybrid power switch provides reliable and accurate power switching up to 35 amperes at 158°F (70°C). This mercury-free product is specifically designed to operate in the higher ambient temperatures of foodservice applications.

The use of mercury in relays is being eliminated by regulations in the United States and around the world. The E-SAFE II is the best choice for replacing mercury relay switches and the best performing product at the most economical price. Because of the product's unique design, there is no need to purchase costly heat sinks used with traditional solid state relays (SSRs). In addition, since this is a three-phase device, there is no need to wire multiple command signals. With a switching life of millions of cycles and an ambient rating of 158°F (70°C), with no heat sink required, this product is superior to typical SSRs. 

The E-SAFE II hybrid power switch provides foodservice operators with longer contact life and higher performance than typical mechanical contactors used in equipment. By using Watlow's patent NO-ARC technology, the E-SAFE II can switch millions of cycles to increase the life of the product with reduced noise and increased temperature accuracy. E-SAFE II's inherent ability to operate at fast cycle times make it an ideal complimentary product for a time, proportional, integral derivative (PID)controller.

E-SAFE II is mercury free, RoHS compliant by design, CE approved and C-UL®/UL® recognized. The reliability of the product is protected by a two-year warranty


Mounting:  Back panel
Max Output:  35A
Output Firing:  Zero Cross
Phase Configurations:  1, 2, or 3
Ambient Operating Range:  0 to 70°C  (32 to 158°F)
Agency Approvals:  UL®, C-UL®, CE, WEEE, RoHS
Dimensions:  5.54 in. (140,72 mm) x 3.82 in. (97.03)
Warranty (years):  2
Note: The specifications in the table above are best available values in each category. Not all combinations of these values are available in a single model number.

Features & Benefits:

Features Benefits
Mercury free
  • Improves safety by eliminating risk of toxic metals in proximity to food
  • Adheres to federal and state regulations phasing out and banning mercury
High ambient temperature rating of 158°F (70°C)
  • Specifically designed to operate in the higher ambient temperatures of foodservice applications
NO-ARC hybrid power switch technology
  • Combines the current carrying capacity of mechanical contacts with the longevity of solid state technology
  • Allows faster cycling times than mechanical contractors
  • Delivers more precise temperature control, saves energy, extends heater life and decreases total cost of ownership
Compact and touch-safe package
  • Fits in shallow foodservice cabinets
  • Allows for horizontal or vertical mounting
  • Uses Ultem® enclosure material with an horizontal burn rating (HB) rating of 338°F (170°C) and a UL® flame retardant rating of 94 5VA
RoHS compliant by design
  • Specifically designed to meet Asian and European requirement
LED indicator light
  • Indicates command signal presence from controller
  • Assists in trouble shooting
Agency approvals
  • Provides UL® recognition, C-UL® and CE
  • Compliant with WEEE

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