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3. Mounting
The FB 101 module must be mounted on a 35 mm standard DIN rail (EN 50022).
Recommended height 7.5 mm.
The size of the module appears in section 7. Dimensions. All dimensions are stated in mm.
Removal
4. Electrical data
The FB 101 module is an input circuit for measuring
the phase sequence in the IO 401 module. The
FB 101 module contains protective impedance. The
input cable must be sized according to the tables
below.
Back-up fuses / cable size
Fuse size
50 A
80 A
Conductors
Rigid conductors
Flexible conductors
without insulated ferrule
Conductor size
(American measurement)
Flexible conductors
with insulated ferrule.
With/without plastic collar
5. Technical data
Ambient temperature
• During operation: –20°C to +60°C
• In stock: –25°C to +85°C.
• During transportation: –25°C to +85°C.
Relative air humidity
Cable size
From 5% to 95%.
Materials
2
4 mm
• Enclosure class: IP 20.
2
6 mm
• Plastic type: Black PC / ABS.
Internal resistances
The module has three resistance chains which con-
2
0.2-6 mm
nect the six terminals.
2
The resistance value for a resistance chain is
0.2-4 mm
2.9 MΩ.
Voltage range
24-12 AWG
115-400 VAC.
2
0.2-4 mm
Fitting
(must not be exposed to direct sunlight).
2
1
7
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