M-LB-4244 Surge Protection Barrier

Teknik Veriler

Cihaz Tipi

Type 1/P1 acc. to EN 61643-11

Number of protected signal lines

2

Topology

grounded

Safety Integrity Level (SIL)

SIL 3

Connection

protected area: terminals 1', 2' unprotected area: terminals 1, 2

Leakage current

< 10 nA bei U c , line-line < 70 nA bei U c , line-earth

Nominal voltage

U N 24 V

Maximum continuous operating voltage

U c 23.3 V AC and 33 V DC

Nominal load current

I L 0.75 A at 70 °C (158 °F)

Series resistance

1 Ω per line

Impulse discharge current (10/350 µs)

I imp 1.5 kA per line

Nominal discharge current (8/20 µs)

I n 5 kA per line

Max. surge current (8/20 µs)

I max 20 kA

Total discharge current (8/20 µs)

I total 10 kA

Voltage protection level

U p max. 90 V line-line for nominal discharge current I n max. 75 V line-earth for nominal discharge current I n

Impulse reset time

< 30 ms

Cut-off frequency

f G 3.4 MHz , line-line

Display elements

status display operating state (green) fault indication (red)

Degree of protection

IEC 60529:2013

Functional safety

IEC/EN 61508:2010

Surge protective devices for low voltage

EN 61643-21:2001+A1:2009+A2:2013 IEC 61643-21:2001+A1:2008+A2:2012

Ambient temperature

-40 ... 80 °C (-40 ... 176 °F)

Storage temperature

-40 ... 80 °C (-40 ... 176 °F)

Relative humidity

max. 95 % , without condensation