Velocity VDOT-STB-SCI Manual Download Page 1

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 time without notice 

in prices, colours, materials, components, equipment, specifications and 

models and also to discontinue models.

 

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Features 

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Short circuit isolator base.

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UL Listed Base.

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Compatible to Velocity’s UL Listed detectors.

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Supplied with one LED indicator of S/C condition.

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Contains a locking screw for tamper protection.

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Current consumption 0.12 mA (Standby), 22 mA 
(Activated).

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Power supply 20 VDC to 38 VDC supplied by loop.

 

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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 field wire can be connected to the 

terminals. VDOT-STB-SCI contains a locking screw to avoid 
unauthorized removal of detectors.

 

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Dimensions

Page 1

 

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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

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