Nittan EVA-UB4 User manual
STANDARD DETECTOR MOUNTING 4” BASE EVA-UB4
■ Description
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 as a terminal block. The base is supplied with
4 terminals that are used depending on the detector
heads. The 12 – 22 AWG eld wire can be connected
to the terminals. EVA-UB4 contains a locking screw
to avoid unauthorized removal of detectors.
Compatible Detector Models
Model Discription
EVA-PY Addressable Photoelectric Smoke Detector
EVA-PYH Addressable Multisensory Detector
EVA-H2 Addressable Heat Detector
EVA-H2-H Addressable High-temp. Heat Detector
EVA-DPH Addressable Dual Optical / Heat Detector
EVCA-P Conventional Photoelectric Smoke Detector
STA-P-OM Conventional Photoelectric Smoke Detector
■ Features
• 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
Dimensions
Nittan reserves the right to make changes at any time without notice in prices, colours, materials,
components, equipment, specications and models and also to discontinue models.
NOT TO BE USED FOR INSTALLATION PURPOSES.
EVA-UB4-DAT-01 Rev.1
■ Installation Diagrams
■ Specications
Specications EVA-UB4
Operating Temperature -10 °C to +83 °C (14 °F to 181.4 °F)
Storage Temperature -20 °C to +60 °C (-4 °F to 140 °F)
Relative Humidity ≤ RH 95 % non-condensing
Environment Indoor, dry use only
Terminal AWG12-22
Dimensions φ104 mm x H 15 mm
Weight 65 g
Standard UL268 and UL521
3
5
1
6
3
5
1
6
EVA-UB4 /
EVA-UB4-6
UL Listed
Control
Panel
EVA-UB4 /
EVA-UB4-6
Loop B +
Loop B -
Loop A +
Loop A -
3
5
1
6
UL Listed
Module
IDC +
IDC -
+
-
Remote
Annunciator
EOL 10kΩ
5
1
6
3
EVA-UB4 /
EVA-UB4-6
EVA-UB4 /
EVA-UB4-6
Analog addressable wiring
When connected to analog detectors such as EVA-PY, EVA-PYH,
EVA-H2, EVA-DPH, etc.
Conventional wiring
When connected to conventional detectors such as EVCA-P,
STA-P-OM, etc.
Electrical box
Base
EVA-UB4
Locking Screw
Turn the locking screw
counterclockwise until
the screw comes to
about 4 mm from the
rim of the base.
Mounting
EVA-UB4 is designed to be mounted to 3-1/2” and 4” octagonal
electrical boxes.
Locking Screw
EVA-UB4 contains a locking screw to avoid unauthorized removal
of detectors.
EVA-UB4-DAT-01 Rev.1
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