Part No. F03-83050


EVA-UB4 Standard Base is a 4 inch mounting base for Nittan’s UL listed detectors that can be mounted to 3-1/2 inch and 4 inch octagonal electrical boxes. The base contains no electrical circuit so that the base is used for terminal connections only.

The base is supplied with 4 terminals that are used depending on the detector heads. The 12 – 22 AWG field wire can be connected to the terminals. EVA-UB4 contains a locking screw to avoid unauthorised removal of detectors.



  • UL Listed base
  • Compatible to Nittan’s UL Listed detectors
  • Contains a locking screw for tamper protection
  • 4 terminals to be used depending on detectors
  • Mounts directly to 3-1/2” and 4” octagonal electrical boxes


Compatible Detector Models

EVA-PYAddressable Photoelectric Smoke Detector
EVA-PYHAddressable Multi-sensory Detector
EVA-H2Addressable Heat Detector
EVA-H2-HAddressable High-temp. Heat Detector
EVA-DPHAddressable Dual Optical Heat Detector
EVCA-PConventional Photoelectric Smoke Detector
EVCA-P-ZConventional Photoelectric Smoke Detector

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