Datasheet

https://www.phoenixcontact.com/gb/products/1074739
07/23/2019Page2/5
Combination type 1/2 protective device-FLT-SEC-
ZP-3C-255/7,5-1074739
Technical data
Ambient conditions
Ambient temperature (storage/transport) -40 °C ... 80 °C
Altitude ≤ 6000 m (amsl (above mean sea level))
Permissible humidity (operation) 5 % ... 95 %
General
IEC test classification I + II
T1 + T2
EN type T1 + T2
IEC power supply system TN-C
Mode of protection L-PEN
Mounting type Busbar 40 mm
Color light grey RAL7035
Housing material PA 6.6-FR
PC
Degree of pollution 2
Flammability rating according to UL 94 V-0
Type Busbar module, one-piece
Number of positions 3
Surge protection fault message optical
Protective circuit
Nominal voltage U
N
230/400V AC (TN-C)
Nominal frequency f
N
50 Hz (60Hz)
Maximum continuous voltage U
C
255 V AC
Nominal discharge current I
n
(8/20) µs
20 kA
Impulse discharge current (10/350)µs, charge 3.75 As
Impulse discharge current (10/350)µs, specific energy 15 kJ/Ω
Impulse discharge current (10/350)µs, peak value l
imp
7.5 kA
Follow current interrupt rating I
fi
25 kA
Short-circuit current rating I
SCCR
25 kA
Voltage protection level U
p
≤ 1.5 kV
TOV behavior at U
T
337 V AC (5s / withstand mode)
442 V AC (120min / safe failure mode)
Response time t
A
≤ 100 ns
Max. backup fuse with branch wiring 250 A (gG)
Connection data
Connection method Screw connection
Screw thread M5
Tightening torque 4.5 Nm