Technical data

18
Protective Devices
Residual Current Devices FI-B
• Residual current devices - all fault-current sensitive
• Twin-purpose terminal (lift/open-mouthed) above and below
• Busbar positioning optionally above or below
• Free terminal space despite installed busbar
• Not busbar-compatible with other devices of the P series
• Auxiliary switch Z-HD can be mounted at a later point in time
• Contact position indicator red - green
• The device functions irrespective of the position of installation
• Tripping happens independent from line voltage (type A currents).
30 VAC are required to identify currents of type B.
• Mains connection is at the top
• The test key “T” must be pressed every month. The system operator must
be informed of this obligation and his responsibility in a way that can be
proven (self-adhesive RCD-label enclosed)
• Pressing the test key “T” serves the only purpose of function testing the
residual current device (RCD). This test does not make earthing resistance
measurement (R
E
), or proper checking of the earth conductor condition
redundant, which must be performed separately.
• Type B: All fault-current sensitive protective devices are designed for use
in 50 Hz AC systems with electrical equipment such as frequency conver-
ters, uninterruptible power supply systems, switch mains adapters or high-
frequency power converters. In case of a fault, electronic equipment may
not only cause AC residual currents and pulsating DC residual currents, but
also pure DC and AC residual currents of different frequencies in which
case FI residual current devices of type AC and A will not trip.
Residual current devices of type PFDM-B, however, will identify all types of
fault currents in line with tripping characteristic B of the IEC 60755
standard, i.e. pure DC residual currents as well. In addition, they will also
identify all AC residual currents of all frequencies up to 1 MHz (100 kHz with
type S/B) in undulating (mixed) currents.
Accessories:
Auxiliary switch for installation on the left
at a later point in time Z-HD 265620
Connection diagrams
2-pole 4-pole
Technical Data
Electrical
Design according to IEC/EN 61008
Current test marks as printed onto the device
Tripping short-time delayed
Type S/B 40 ms delayed -
selective switch-off
Rated voltage U
n
230/400 V; 50 Hz
Rated tripping current I
Δn
30, 100, 300, 500 mA
Peak withstand current 0,5µs/100kHz
Ring-Wave-Test
Sensitivity All types of fault-current
Rated short circuit strength 10 kA
Maximum back-up fuse Overload Short circuit
I
n
= 16A 10 A gG/gL 63 A gG/gL
I
n
= 25-40A 25 A gG/gL 63 A gG/gL
I
n
= 63A 40 A gG/gL 63 A gG/gL
I
n
= 80A 50 A gG/gL 80 A gG/gL
I
n
= 100A 63 A gG/gL 100 A gG/gL
Voltage range of test button 185 to 440 V~
Rated breaking capacity I
m
or
Rated fault breaking capacity I
Δm
I
n
= 16-40 A 500 A
I
n
= 63-80 A 800 A
I
n
= 125 A 1250 A
Endurance electrical comp. ≥ 4,000 operating cycles
mechanical comp. ≥ 10,000 operating cycles
Mechanical
Frame size 45 mm
Device height 80 mm
Device width 70 mm (4MU) for 2p and 4p
Mounting quick fastening with
DIN rail EN50022
Degree of protection, built-in IP40
Upper terminals lift terminals
Lower terminals open-mouthed/lift terminals
Terminal protection finger and hand touch safe,
BGV A.
Terminal capacity 1,5 - 50 mm
2
Busbar thickness 0,8 - 2 mm
Admitted ambient temperature range -25°C to +40°C
Resistance to climatic conditions according to IEC/EN 61008
Mounting position any
Dimensions (mm)
2p and 4p