Table 18 OPT100 operating environment
Property Description/Value
Transformer oil type Mineral oil
Required minimum fire point
1)
of
transformer oil
+125 °C (+257 °F)
Transformer oil pressure at oil inlet Max. 2 bar
abs
continuous
Burst pressure 20 bar
abs
Transformer oil temperature at oil inlet Max. +100 °C (+212 °F)
Ambient humidity range 0 … 100 %RH, condensing
Ambient temperature range in
operation
−40 … +55 °C (−40 … +131 °F)
Storage temperature range −40 … +60 °C (−40 … +140 °F)
IP rating IP66: Dust-tight. Protected from powerful water jets from
any direction.
1) The fire point [of transformer oil] is normally approximately 10 °C [18 °F] higher than the
closed flash point. See, for example, Heathcote, Martin J. The J & P Transformer Book. 13th
ed. Elsevier, 2007.
Table 19 OPT100 power supply
Property Description/Value
Operating voltage OPTPSU1: 100 … 240 V AC, 50 … 60 Hz, ±10 %
OPTPSU2: 110 … 220 V DC, ±10 %
Overvoltage category III
Maximum power consumption 500 W
Typical power consumption at +25 °C
(+77 °F)
100 W
Connector Screw terminals (inside power supply unit)
Wire size 2.5 … 4 mm
2
(14 … 12 AWG)
Table 20 OPT100 outputs
Property Description/Value
RS-485 interface
Connector Screw terminals (inside OPT100 housing)
Wire size 0.5 … 4 mm
2
(20 … 12 AWG)
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