Vega VEGAPULS 11 - Modbus - Overview

49
13 Supplement
VEGAPULS 11 • Two-wire 4 … 20 mA
58350-EN-200806
Load resistor
Ʋ Calculation (U
B
- U
min
)/0.022 A
Ʋ Example - with U
B
=24VDC (24V-12V)/0.022A=545Ω
Overvoltage protection
Dielectric strength against metallic
mounting parts
>10kV
Overvoltage resistance (test impulse
voltages1.2/50µsat42Ω)
>1000V
Additional overvoltage arrester Duetotheoatingstructureoftheelectronicsandcom-
prehensive insulation measures generally not necessary.
Electrical protective measures
Potential separation
Electronics potential free up to 500 V AC
Protection rating IP66/IP67 acc. to IEC 60529
Type 4X acc. to UL 50
Altitude above sea level 5000 m (16404 ft)
Protection class III
Pollution degree 4
13.2 Dimensions
50 mm
(1.97")
122 mm
(4.80")
25 mm
(0.98")
G1½
SW 50
ø 58 mm
(2.28")
ø 77,5 mm
(3.05")
1½ - 14 NPT R 1½
156 mm
(6.14")
1 2 3
Fig. 25: Dimensions VEGAPULS 11
1 Thread G1½
2 Thread 1½ NPT
3 Thread R1½