© Danfoss | DCS (jmn) | 2017.04
2 | 520H11925 | DKRCC.PI.CA0.C4.02
Electrical connection
The KP-E pressure switch placed in explosive zone must always be
wired through reliable Ex zener barrier, placed outside ex-zone,
to ensure insufficient energy supply to cause the ignition of
surrounding atmosphere by an electrical spark or the heating of
components of circuitry.
The equipment to be used for electrical load limiting must always
be approved for use in the zone concerned.
Cables and cable entries approved for the application must be
used and can not be in contact with sharp edges. Cables must be
connected with adequate stress relief that way that pulling forces
can not be carried throug the cable to the terminal.
Note:
A particular system can be classified in different zones, for
different parts of the system.
EX - zone
Non EX - zone
Electrical data for intrinsically safe
specification (for all KP-E types):
Product marking
Danf
oss
60-8070.11
Pi max: 1 W
Ui max: 30 V
Ii max: 0.1 A
Ci max: 0.5 nF
Li max: 0.2 µH
II3G
Ex ic IIB T6Gc
Must be used with certified Ex ic barrier (product matching) satisfying the input parameters.
Intrinsic safety protection method
KP-E
Signal
EX certified
Zenner
barrier
Contact function
KP 1E
KP 7EW,
KP 7EB
Contact 1-4 opens on pressure drop:
Contact 1-2 opens on pressure rise:
Manual trip function
Automatic reset
Manual reset
Range
Diff.
6 mm
(15/64 in)
