Eaton Electrical
D99 Series Solid-State Relays

Key Features

  • All solid-state circuitry has no moving parts to wear
  • Integral heat sink eliminates the need for added accessories and installation
  • Flexible mounting allows DIN rail or panel mounting without additional hardware or tools
  • Isolated input and output terminals protect the system from electrical noise
  • Internal snubber circuitry protects the SSR from transients

Standards and Certifications

  • UL/cUL listed—UL 508
  • CSA certified
  • CE marked
  • RoHS compliant

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Eaton’s D99 series of solidstate relays is a line of heavy-duty industrial relays with an integrated heat sink. The attached metal hardware can be used for DIN rail or panel mounting.

Models are available in a variety of input voltages in 10A, 25A and 40A sizes.

Application Description

A solid-state relay (SSR) can perform many applications that an electromechanical relay can perform. The SSR differs in that it has no moving mechanical parts within it and has some distinct advantages over an electromechanical relay. 

When used correctly in the intended application, the SSR provides a high degree of reliability, a long service life, significantly reduced electromagnetic interference, fast response and high vibration resistance.

Applications for the SSR typically include equipment that requires high cycling rates, low acoustical or electrical noise, or high vibration resistance. Some examples are medical equipment, heating/cooling equipment, lighting control and pumps/compressors, among others.

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