Datasheet

https://www.phoenixcontact.com/de/products/1074741
08/14/2018Page3/5
Combination type 1/2 protective device-FLT-SEC-
ZP-3S-255/7,5-1074741
Technical data
Protective circuit
Impulse discharge current (10/350) µs (N-PE), peak current value I
imp
30 kA
Follow current interrupt rating I
fi
(L-N)
25 kA
Follow current interrupt rating I
fi
(L-PE)
25 kA
Follow current interrupt rating I
fi
(N-PE)
100 A
Short-circuit current rating I
SCCR
25 kA
Voltage protection level U
p
(L-N)
≤ 1.5 kV
Voltage protection level U
p
(L-PE)
≤ 2 kV
Voltage protection level U
p
(N-PE)
≤ 1.5 kV
TOV behavior at U
T
(L-N)
337 V AC (5s / withstand mode)
442 V AC (120min / safe failure mode)
TOV behavior at U
T
(L-PE)
442 V AC (120min / withstand mode)
1455 V AC (200ms / withstand mode)
TOV behavior at U
T
(N-PE)
1200 V AC (200ms / withstand mode)
Response time t
A
≤ 100 ns
Max. backup fuse with branch wiring 250 A (gG)
Connection data
Connection method Screw terminal blocks
Screw thread M5
Tightening torque 4.5 Nm
Stripping length 18 mm
Conductor cross section flexible 2.5 mm² ... 35 mm²
Conductor cross section solid 2.5 mm² ... 35 mm²
Standards and Regulations
Standards/regulations IEC61643-11 2011
EN61643-11 2012
Drawings
Dimensional drawing
20
64
87,9
110,7
223,2
47
Circuit diagram
L1 L2
L3 PE
N
6
&
SPD L2
SPD L3
SPD L1