PT 3-HF-12DC-ST Surge protection plug

Surge protection plug - PT 3-HF-12DC-ST - 2858043

Surge protection plug for the base element, normal mode voltage coarse and fine protection for two floating signal wires and ground in IT, common mode voltage coarse protection to ground/earth. Design: 12 V DC

Ambient conditions
Ambient temperature (operation) -40 °C ... 85 °C
Altitude max. 2000 m
Degree of protection IP20

General
Housing material PA
Flammability rating according to UL 94 V-0
Color black
Standards for cearances and creepage distances DIN EN 61664-1
IEC 60664-1
Mounting type on base element
Type Male
Number of positions 3
Direction of action Line-Line & Line-Signal Ground/Shield & optional Signal Ground/Shield-Earth Ground
Arrester can be tested with CHECKMASTER from software version: From SW rev. 1.10

Protective circuit
IEC test classification C1
C2
C3
D1
VDE requirement class C1
C2
C3
D1
Nominal voltage UN 12 V DC
Maximum continuous voltage UC 14 V DC
9.8 V AC
Rated current 450 mA (45 °C)
Operating effective current IC at UC ≤ 5 µA
Residual current IPE < 5 µA (with PT 1X2-BE)
< 1 µA (with PT 1X2+F-BE)
Nominal discharge current In (8/20) µs (line-line) 10 kA
Nominal discharge current In (8/20) µs (line-earth) 10 kA
Nominal discharge current In (8/20) µs (line-signal ground) 10 kA
Pulse discharge current Iimp (10/350) µs 2.5 kA
Total discharge current Itotal (8/20) µs 20 kA
Max. discharge current Imax (8/20) µs maximum (line-line) 10 kA
Max. discharge current Imax (8/20) µs maximum (line-earth) 10 kA
Nominal pulse current Ian (10/1000) µs (line-line) 67 A
Output voltage limitation at 1 kV/µs (line-line) spike ≤ 55 V
Output voltage limitation at 1 kV/µs (line-earth) spike ≤ 55 V (with PT 1X2-BE)
≤ 700 V (with PT 1X2+F-BE)
Output voltage limitation at 1 kV/µs (line-line) static ≤ 25 V
Output voltage limitation at 1 kV/µs (line-earth) static ≤ 25 V
≤ 40 V (with PT 1X2+F-BE)
Residual voltage at In (line-line) ≤ 25 V
Residual voltage at In (line-earth) ≤ 40 V (with PT 1X2-BE)
Residual voltage at In (line-signalground) ≤ 25 V (with PT 1X2-BE)
Residual voltage with Ian (10/1000) µs (line-line) ≤ 25 V
Residual voltage with Ian (10/1000) µs (line-signalground) ≤ 25 V
Voltage protection level Up (line-line) ≤ 50 V (C3 - 25 A)
≤ 80 V (C1 - 1 kV / 500 A)
≤ 110 V (C2 - 10 kV / 5 kA)
≤ 80 V (6 kV / 3 kA)
Voltage protection level Up (line-earth) ≤ 50 V (C3 - 25 A)
≤ 85 V (C1 - 1 kV / 500 A)
≤ 140 V (C2 - 10 kV / 5 kA)
≤ 100 V (6 kV / 3 kA)
Voltage protection level Up (line-signalground) ≤ 50 V (C3 - 25 A)
Response time tA (line-line) ≤ 500 ns
Response time tA (line-earth) ≤ 500 ns
Input attenuation aE, sym. typ. 0.3 dB (≤ 5 MHz / 100 Ω)
Cut-off frequency fg (3 dB), sym. in 100 Ω system typ. 60 MHz
Capacity (line-line) typ. 30 pF
Resistance per path 2.2 Ω ±10 % (7-8/11-12)
Max. required back-up fuse 500 mA (T)
Impulse durability (line-line) C2 - 10 kV / 5 kA
C3 - 67 A
Impulse durability (line-earth) C2 - 10 kV / 5 kA
C3 - 67 A
D1 - 2.5 kA



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