Emerson Sureswitch Universal Contactor

Item # 28-4334 | Emerson Part # 49P11-843 | UPC Code 786710546273 | UNSPSC Code 40101600
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Product Overview

The Emerson SureSwitch relay is a universal electronic upgrade for mechanical compressor contactors. The compressor is protected from burnouts and short cycling. Microprocessor control nearly eliminates contact welding and pitting. This contactor is ideal install with new PM contrac, and features tricolor LED displays and heavy duty lug connectors.

  • 5x the life of mechanical contactors
  • Sealed contacts to prevent failure and damage from insects and debris
  • Compressor short-cycle delay
  • Compressor brownout protection
  • Random start delay
  • 1 to 1.5 pole for up to 5 ton/40 FLA systems and applications
  • Zero chatter latching relay

Proposition 65 Information

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Brand/Model Compatibility
HVAC Product Type
Manufacturer Warranty
5 years
Product Depth (in.)
Product Height (in.)
Product Weight (lb.)
Product Width (in.)


5 years