6 Notification Appliances—PA400 Electronic Mini-Sounders and PS12/24 Series Optional Strobes
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Under no circumstances can the PS12 voltage exceed 15 VDC or be
less than 9.6 VDC.
To calculate battery requirements, use current values shown in Table 2.
However, note that there is an inrush current associated with strobe power-
up. The information in Figures 3 and 4 is useful when selecting fuse
values.
The 12V strobe inrush current typically peaks at 3A and drops to nominal
in 600 microseconds (Figure 3). In a 24V strobe, the inrush current
typically peaks at 7.0 amperes and drops to nominal in 800 microseconds
(Figure 4).
1A/div
200uS/div
strbgrh1
Figure 3: 12 Volt Strobe Inrush Current
1A/div
200uS/div
strbgrh2
Figure 4: 24 Volt Strobe Inrush Current
