https://www.phoenixcontact.com/us/products/2801051
04/19/2016Page2/4
Surge protection device-CN-UB-280DC-3-SB-2801051
Technical data
General
Mounting type Connection-specific intermediate plugging
Type Attachment plug
Number of positions 1
Direction of action Line-Shield/Earth Ground
Protective circuit
IEC test classification C2
C3
D1
Maximum continuous voltage U
C
280 V DC
Maximum continuous voltage U
C
(wire-ground)
280 V DC
Nominal current I
N
5 A (25 °C)
Operating effective current I
C
at U
C
≤ 1 µA
Nominal discharge current I
n
(8/20) µs
20 kA
Nominal discharge current I
n
(8/20) µs (Core-Earth)
20 kA
Nominal discharge current I
n
(8/20) µs (Core-Shield)
20 kA
Total surge current (8/20) µs 20 kA
Total surge current (10/350) µs 2.5 kA
Max. discharge current I
max
(8/20) µs
20 kA
Max. discharge current I
max
(8/20) µs maximum (Core-Earth)
20 kA
Max. discharge current I
max
(8/20) µs maximum (Core-Shield)
20 kA
Nominal pulse current Ian (10/1000) µs (Core-Shield) 100 A
Impulse discharge current (10/350)˽µs, peak value l
imp
2.5 kA
Output voltage limitation at 1 kV/µs (Core-Earth) spike ≤ 900 V
Output voltage limitation at 1 kV/µs (Core-Shield) spike ≤ 900 V
Voltage protection level U
p
(core-ground)
≤ 1.1 kV (C2 - 10 kV / 5 kA)
≤ 900 V (C1 - 1 kV/500 A)
Voltage protection level U
p
(core-shield)
≤ 1.1 kV (C2 - 10 kV / 5 kA)
≤ 900 V (C1 - 1 kV/500 A)
Response time tA (Core-Earth) ≤ 100 ns
Response time tA (Core-GND) ≤ 100 ns
Input attenuation aE, asym. typ. 0.1 dB (≤ 3 GHz)
Cut-off frequency fg (3 dB), asym. (shield) in 50 Ohm system > 3 GHz
Frequency range 0 Hz ... 3 GHz
Standing wave ratio SWR in a 50 Ω system typ. 1.15 (≤ 3 GHz)
max. 1.2
Permissible HF power P
max
at VSWR = xx (50 ohm system)
700 W (VSWR = 1.1)
