12.10.4 Mechanic Limit Switches (MLS) 6DR4004-6K / -8K
Without explosion protec‐
tion
With explosion protection
Ex "ia", "db ia"
With explosion protection
Ex "ic", "tb"
6DR4004-8K 6DR4004-6K 6DR4004-6K
Limit encoder with mechanical switch‐
ing contacts
2 limit contacts
● Digital output DO1: Terminals 41
and 42
● Digital output DO2: Terminals 51
and 52
● Max. switching current AC/DC
4 A - -
● For connecting to circuits with the
following peak values
- U
i
≤= 30 V
I
i
≤ 100 mA
P
i
≤ 750 mW
"ic":
U
i
≤ 30 V
I
i
≤ 100 mA
"tb":
U
n
≤ 30 V
I
n
≤ 100 mA
Effective internal capacitance - C
i
= negligibly small C
i
= negligibly small
Effective internal inductance - L
i
= negligibly small L
i
= negligibly small
● Max. switching voltage AC/DC
250 V/24 V DC 30 V DC 30 V
1 fault message output
● Digital output: Terminals 31 and 32
● Connection
On switching amplifier according to EN 60947-5-6: (NAMUR), U
Aux
= 8.2 V, Ri = 1 kΩ).
● Signal state High
(not triggered)
R = 1.1 kΩ > 2.1 mA > 2.1 mA
● Signal state Low (triggered)
R = 10 kΩ < 1.2 mA < 1.2 mA
● Auxiliary power
U
Aux
≤ DC 35 V
I ≤ 20 mA
- -
● Connecting to circuits with the fol‐
lowing peak values
- U
i
≤ 15 V
I
i
≤ 25 mA
P
i
≤ 64 mW
"ic" :
U
i
≤ 15 V
I
i
≤ 25 mA
"tb":
U
n
≤ 15 V
I
n
≤ 25 mA
Effective internal capacitance - C
i
≤ 5.2 nF C
i
≤ 5.2 nF
Effective internal inductance - L
i
= negligibly small L
i
= negligibly small
Galvanic isolation The 3 outputs are galvanically isolated from the basic device
Test voltage 3150 V DC, 2 s
Rated condition height Max. 2 000 m above sea
level. Use a suitable power
supply at an altitude of
more than 2 000 m above
sea level.
- -
Technical data
12.10 Option modules
SIPART PS2 with 4 to 20 mA/HART
Operating Instructions, 11/2019, A5E00074631-AE 253
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