78
Installation BRS20/22/30/32/40/42/50/52
Release
12
01/2022
Max. PoE power 240 W 0 °C ... +50 °C (+32 °F ...
+122 °F) ambient air
temperature
a
Ambient air
temperature
180 W > +50 °C ... +55 °C
(+122 °F ... +131 °F)
a
ambient air temperature
120 W > +55 °C ... +60 °C
(+131 °F ... +140 °F)
a
ambient air temperature
Voltage range DC incl. maximum
tolerances:
When using PoE: 46 V DC ... 57 V DC
When using PoE+: 52 V DC ... 57 V DC
Without using PoE or
PoE+:
19 V DC ... 60 V DC
Connection type 6-pin terminal block with screw lock
Tightening torque 0.5 Nm (4.4 lb-in)
min. conductor
diameter
0.75 mm² (AWG18)
max. conductor
diameter
2.5 mm² (AWG12)
Power loss buffer >10 ms at 20.4 V DC
Overload current protection on the device Non-replaceable fuse
Back-up fuse for each voltage input Nominal rating: 10 A
Characteristic: slow blow
Current integral I²t <25 A
2
s
Insulation requirement 2250 V DC to casing ground/functional ground for
at least 60 seconds
Connection for functional ground See “Grounding the device” on page 49.
a. The de-ratings apply to all PoE device variants in medium plastic casings and with standard
temperature range.
Supply voltage with characteristic value P
Table 18: Supply voltage with characteristic value P
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