Velocity VDOT-STB-SCI User manual

GLT-299-6-8 Rev.0
http://www.velocitydetection.com
BASE SHORT CIRCUIT ISOLATOR VDOT-STB-SCI
NOT TO BE USED FOR INSTALLATION PURPOSES.
Velocity reserves the right to make changes at any me without noce
in prices, colours, materials, components, equipment, specicaons and
models and also to disconnue models.
Features
• Short circuit isolator base.
• UL Listed Base.
• Compatible to Velocity’s UL Listed detectors.
• Supplied with one LED indicator of S/C condition.
• Contains a locking screw for tamper protection.
• Current consumption 0.12 mA (Standby), 22 mA
(Activated).
• Power supply 20 VDC to 38 VDC supplied by loop.
Description
VDOT-STB-SCI is a 4 inch mounting base with short circuit
isolator that isolates short-circuit to protect a detector failing.
When short circuit is detected, LED indicator illuminates and
the short-circuit area is isolated automatically. Upon removal
of the short condition, the area is automatically connected to
go back to the normal operating status. VDOT-STB-SCI can be
mounted to 3-1/2” octagonal electrical box, or to 4” square
or 4” octagonal electrical box when using VDOT-ADP optional
mounting adaptor. The base is supplied with 3 terminals as
standard. The 12 – 20 AWG eld wire can be connected to the
terminals. VDOT-STB-SCI contains a locking screw to avoid
unauthorized removal of detectors.
Dimensions
Page 1
Compatible Detector Models
Models Description
VDOT-PY Addressable Photoelectric Smoke Detector
VDOT-PYH Addressable Multisensory Detector
VDOT-H2 Addressable Heat Detector
VDOT-DPH Addressable Dual Optical / Heat Detector

Distributed By
http://www.velocitydetection.com
GLT-299-6-8 Rev.0
Zeta Alarms Limited
72-78 Morfa Road, Swansea
SA1 2EN
Tel: [phone] FAX: [phone]
Allspecicationsaresubjecttochangewithoutanynotice.
For more information, contact with VELOCITY.
Locking Screw
VDOT-STB-SCI contains a locking screw to avoid
unauthorizedremoval of detectors.
Mounting
VDOT-STB-SCI can be mounted to a 3-1/2” octagonal elec-
trical box, or to a 4” square or a 4” octagonal electrical
box when using a STBA-ADP optional mounting adaptor.
Specications
Specications VDOT-STB-SCI
SLC Applied Voltage Rated Range 20 VDC to 38 VDC
SLC Current Consumption Standby: 100 μA Activated (SCI Isolation): 22mA
SCI On Resistance 0.2 ohms (max)
SCI Fault Detection Voltage 10 V (min)
LED Visual Indicator Short Circuit - Solid Yellow LED
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
Page 2
Installation Diagrams
Analog Addressable Wiring
When connected to analog addressable detectors such as
VDOT-PY, VDOT-PYH, VDOT-H2, VDOT-DPH, etc.
Terminals
VDOT-STB-SCI base is supplied with 3 terminals as follows: