KROHNE IFC 090F Converter EEx-ATEX EN User Manual
Page 8

ALTOFLUX IFC 090 F-EEx and ALTOFLUX IFC 090 F / i-EEx
8
Cable B 
Power supply cable: The cable parameters must be in accordance with the regulations of the EN 
60079-14 "Electrical installations in hazardous locations" or an equivalent national standard. 
 
The PE terminal must be connected to the protective ground conductor of the mains supply. 
 
Rated voltage 
≥ 500 V
Cross-sectional area of core
1.5 to 2.5 mm
2
Examples H07...-.,
H05...-.
Cable C
1
2 
3 
4 
5 
6 
7 
8
3 3
7
1
6
4
Type DS blue 
Intrinsical safe, with double shielding 
 
1 Stranded drain wire, 
 1st shield, 1.5 mm
2
2 Insulation 
3 Stranded wire, 0.5 mm
2
4 Special foil, 1st shield 
5 Insulation 
6 Mu-metal foil, 2nd shield 
7 Stranded drain wire, 
 2nd shield, 0.5 mm
2
8 Outer sheath 
 (flame-retardant) 
Cable constants (typical 
values at Ta = 20°C) 
 
C’3/3 60 pF/m (1 kHz) 
C’3/4 110 pF/m (1 kHz) 
C’4/6 290 pF/m (1 kHz) 
 
L’3/3 0.85 µH/m (1 kHz) 
L’3/4 0.60 µH/m (1 kHz) 
 
R’3 
37 m
Ω/m
R’4+1 12 m
Ω/m
 
Cable D 
Intrinsical safe, with single shielding. Heat-resistant conform to VDE 0165/02.91. 
 
Properties 
Continuous service temperature 
≥ 120°C
Test voltage
≥ 500 V
Capacitance:
≤ 200 pF/m
≤ 200 pF/m
Inductance:
≤ 1µH/m
Cable length
≤ 5 m
Single-wire-Ø:
≥ 0.1 mm
Cross-sectional area of core
0.5 to 1.5 mm
2
Sheath
light-blue or in other way color-coded as intrinsical safe, 
flame-retardant. 
Example
Silicone rubber insulated, shielded control cable.
 
Cable E 
Non-intrinsical safe, 2-core without shielding. Heat-resistant conform to VDE 0165/02.91. 
 
Properties 
Continuous service temperature 
≥ 120°C
Test voltage
≥ 500 V
Cross-sectional area of core
1.5 mm
2
 
Bonding conductor 
Cross-sectional area 
Max. 4 mm
2
