ST950S Plus+ Installation and Commissioning Manual
Note:
The Plus+ Layout Design tool will evaluate whether the design is ‘standard’ or ‘high load’.
Table 52. Controller Fuses
Description
Part Number
Electricity Company Cut-out –
High Load
ST950 Plus
+
The Max size of this fuse should not exceed 100A (without reference to Yunex
Traffic Poole). Maximum prospective short circuit current must not exceed
16,000A. Rating depends on application but 45A minimum is recommended up to
24A load
N/A
Master Switch Fuse –
Standard
ST950 Plus
+
16A HRC cartridge fuse to BS88-3 on Master Switch panel
518/4/90637/007
Master Switch Fuse –
High Load
ST950 Plus
+
30A HRC cartridge fuse to BS88-3 on Master Switch panel (or 32A HRC car
tridge fuse to BS88-3)
518/4/90637/001
CPU Card Handset protection fuse
500mA fuse on CPU Card to protect against short-circuit on 5V supply on hand
set socket (F1) and Aux RS232 Modem power supply output (F2)
518/4/97070/004
Torroid Incoming Fuse 2A
518/4/97093/012
Torroid Out going Fuse 160mA
518/4/90285/020
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