Edwards EST EC30U-3


Low-profile Plug-in Photoelectric Detector

Available With a Lead Time


EC30U-3 low-profile plug-in photoelectric detectors measure-up to the quality and performance standards that have made Edwards fire detection products the industry’s best price-performance buy available today. Meticulously engineered to deliver high-performance features, superb reliability, and unbeatable quality, the EC30U-3 is a low-cost solution for conventional detection applications.

The EC30U-3 distinguishes itself as a performance leader in its class with its highly stable design that resists air movements caused by heating and air conditioning, and changing environmental conditions. This makes it a reliable performer ideally suited to modern building interiors.

The installation and maintenance advantages of the EC30U-3 add value to this detector throughout its service life. Its twist-and-lock design makes short work of installation and maintenance operations. A plastic breakout on the detector housing optionally prevents removal from the base except with a special tool.

A bright, easy-to-see LED on the detector glows steady when it is in alarm, thus eliminating much of the guesswork when responding to front-panel indications. If a detector is removed for any reason while the panel is in its normal state, a zone trouble condition will result. This ensures the integrity of the alarm system at all times.

EC30U-3 detectors are manufactured to strict international ISO 9001 standards. All electronics employ surface mount technology (SMT) for smaller size and greater immunity to RF noise. A corrosion-resistent conformal coating is used to seal components against dust and humidity.

Datasheet: EC30U-3

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Weight .25 lbs
Dimensions 5 × 5 × 5 in



  • Sensitive to visible and invisible products of combustion
    Finely tuned to sense all fire types, especially slow burning, smoldering fires fueled by combustibles typically found in modern multi-use buildings.
  • Stable, reliable design
    Uses the light scattering principle for smoke detection and is not affected by air movement.
  • Non-polarized
    Simplifies installation of field wiring
  • Simple to install, difficult to vandalize
    Twist-and-lock design saves installation and maintenance time. Field-configurable locking mechanism prevents unauthorized removal.
  • Flexible mounting options
    Compatible standard base mounts to 1-gang, 4” octagonal, BESA, or European single-gang boxes.
  • Easy to maintain
    Removable housing and insect mesh facilitates cleaning.
  • Attractive appearance with clean, modern lines
    Low-profile design blends easily with surroundings, extending less than 21⁄2” (61 mm) from the ceiling, including base.

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