7
3. Mounting
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
Conductors
5. Technical data
Ambient temperature
• During operation: –20°C to +60°C
(must not be exposed to direct sunlight).
• In stock: –25°C to +85°C.
• During transportation: –25°C to +85°C.
Relative air humidity
From 5% to 95%.
Materials
• Enclosure class: IP 20.
• Plastic type: Black PC / ABS.
Internal resistances
The module has three resistance chains which con-
nect the six terminals.
The resistance value for a resistance chain is
2.9 M
Ω.
Voltage range
115-400 VAC.
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
. All dimensions are stated in mm.
Removal
Fitting
T
M
02
69
71
21
03
/
T
M
02
69
72
21
03
2
1
Fuse size
Cable size
50 A
4 mm
2
80 A
6 mm
2
Rigid conductors
0.2-6 mm
2
Flexible conductors
without insulated ferrule
0.2-4 mm
2
Conductor size
(American measurement)
24-12 AWG
Flexible conductors
with insulated ferrule.
With/without plastic collar
0.2-4 mm
2
Summary of Contents for FB 101
Page 1: ...FB 101 GRUNDFOS INSTRUCTIONS Installation and operating instructions...
Page 4: ...4...
Page 9: ...54...
