Emerson Rosemount 2120, Справочное руководство

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Relay DPCO cassette (standard version)
Figure 4-3: Relay DPCO Cassette, Standard Version (Green Label) – Code V
L N
0V
Fuse 0.5 (T)
DPST
+V
1 2 3 4 5 6 7 8 9
NC C NO NC C NO
Note
A DPST (Double Pole, Single Throw) on/off switch must be fitted for safe disconnection of
the power supply. Fit the DPST switch as near as possible to the level switch. Keep the
DPST switch free of obstructions. Label the DPST switch to indicate it is the supply
disconnection device for the level switch.
Table 4-5: Electrical Parameters
Parameter Value
U 20 - 60 Vdc or 20 - 264 Vac (50/60Hz)
I < 6 mA
Table 4-6: NC, C, and NO Terminals
Parameter Resistive load Inductive load
cos
ϕ
1 0.4
L/R 0 ms 7 ms
I
MAX
5 A 3.5 A
U
MAX
ac 250 V 250 V
dc 30 V 30 V
P
MAX
ac 1250 VA 875 VA
dc 240 W 170 W
Electrical installation Reference Manual
March 2022 00809-0100-4030
40 Reference Manual