https://www.phoenixcontact.com/pi/products/2803153
08/19/2018Page2/4
Surge protection device-CN-UB-70DC-6-SB-2803153
Technical data
General
Direction of action Line-Shield/Earth Ground
Additional descriptions
Note
To meet the discharge conditions for DC voltages, please note the
following information: "The surge protective device should be used
together with a transmitter unit, which shuts down in the event of a short-
circuit."
Protective circuit
IEC test classification C2
C3
D1
VDE requirement class C2
C3
D1
Maximum continuous voltage U
C
70 V DC
50 V AC
Maximum continuous voltage U
C
(line-earth)
70 V DC
50 V AC
Rated current 10 A
Operating effective current I
C
at U
C
≤ 1 µA
Nominal discharge current I
n
(8/20) µs
5 kA
Nominal discharge current I
n
(8/20) µs (line-earth)
5 kA
Nominal discharge current I
n
(8/20) µs (line-shield)
5 kA
Total discharge current I
total
(8/20)µs
5 kA
Max. discharge current I
max
(8/20) µs maximum (line-earth)
10 kA
Max. discharge current I
max
(8/20)µs maximum (line-shield)
10 kA
Nominal pulse current Ian (10/1000) µs (Core-Shield) 100 A
Impulse discharge current (10/350)µs, peak value l
imp
1 kA
Output voltage limitation at 1 kV/µs (line-earth) spike ≤ 650 V
Output voltage limitation at 1 kV/µs (line-shield) spike ≤ 650 V
Output voltage limitation at 1 kV/µs (line-earth) static ≤ 650 V
Output voltage limitation at 1 kV/µs (line-shield) static ≤ 650 V
Voltage protection level U
p
(line-earth)
≤ 800 V (C2 - 4 kV / 2 kA)
≤ 1 kV (C2 - 10 kV / 5 kA)
Voltage protection level U
p
(line-shield)
≤ 800 V (C2 - 4 kV / 2 kA)
≤ 1 kV (C2 - 10 kV / 5 kA)
Response time t
A
(line-earth)
≤ 100 ns
Response time tA (line-shield) ≤ 100 ns
Input attenuation aE, asym. 0.1 dB (≤ 6 GHz)
Cut-off frequency fg (3 dB), asym. (shield) in 50 Ohm system > 6 GHz
Frequency range 0 Hz ... 6 GHz
