KROHNE DA Flap-type EN - Manual (Page 13)

Definition of Min1 and Min2 / Max1 and Max2
Min1
Min2
Max1
Max2
8.1.4
Technical data of limit switches
SC3,5-N0-Y SJ3,5-SN SJ3,5-S1N SB3,5-E2
2-wire 2-wire 2-wire 3-wire
NAMUR NAMUR NAMUR
Switching element function NC contact NC contact NO contact NO contact PNP
Nominal voltage U0 8 V 8V 8V 10 to 30 V
Power consumption:
Pointer vane not detected ≥ 3 mA ≥ 3 mA ≤ 1 mA ≤ 0.3 V
Pointer vane detected ≤ 1 mA ≤ 1 mA ≥ 3 mA Ub - 3 V
Continuous current - - - max. 100 mA
No-load current I0 - - - ≤ 15 mA
An isolating switching amplifier, e.g. Pepperl + Fuchs Series KF .. -SR2 ..., is required in order to
operate the SC3,5-N0-Y limit switch (refer to the chapter on the spare part list).
SJ3,5-SN
and SJ3,5-S1N limit switches safety-oriented are connected to a safety-oriented isolating
switching amplifier, e.g. Pepperl + Fuchs K… –SH- ... (large S on the front)
current consumption
with the shown
pointer position
SC3,5-N0 ≤1 mA
SJ3,5-S1N
≤1 mA
current consumption
with the shown
pointer position
SJ3,5-S1N ≥3 mA
SC3,5-N0
≥3 mA