Detector Power Extension Kits - Siemens ST950 Handbook

The transformer has two independent secondary windings. These must be
connected to the PCB module with full observance of the colour coding indicated on
the wiring diagram. The secondary windings attach through the separate six way
cage clamp connector. Do not earth either winding at the transformer. The earth
connection should be made at the central connection point of the PCB module
power connector. Refer to drawing 667/GA/33070/000 for further details.
Each regulatory sign consumes about 7 Watts; for six regulatory signs, the lamp
load would be 7 x 6 = 42 Watts
4.20

Detector Power Extension Kits

Two kits are available:
50VA – 667/1/33075
160VA – 667/1/33074
The number of detectors which can be powered from the ST950 may be extended
by the addition of a 50VA or 160VA additional power supply kit. The photograph
shows a 50VA kit partially installed in a 40Amp controller (two HPU's).
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Figure 43 – Expansion Kit Installed
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manpreet.jeerh
ST950 ICM Handbook
Mobility, Intelligent Traffic Systems
Sopers Lane, Poole, Dorset, BH17 7ER
Page
Status
Date
Document No.
Mobility is a division of Siemens Plc
80 of 154
Issued
January 2020
667/HE/45950/000