Pilz P1E 2NK Data Sheet
Electronic Monitoring Relays
Earth fault monitoring
P1E-2NK
Technical Details P1E 2NK
Electrical data
Supply voltage AC: 24/42, 110/230, 110/240, 400, 500 V
Tolerance 85 ... 110 %
Power consumption AC: approx. 6.5 VA
Switching capability in accordance
with EN 60947-4-1, 10/91 AC1: 240 V/0.1 ... 8 A/1100 VA
Output contacts 2 auxiliary contacts (C/O)
Contact material AgCdO
Contact fuse protection in accordance Max. 10 A quick or max. 6 A slow
with EN 60947-5-1, 10/91
Measuring circuit
Nominal mains voltage (monitored mains) AC: 0 ... 400 V, DC: 350 V
Response value
The P1E-2NK is used for monitoring
earth faults in circuits and detects
insulation faults in galvanically
isolated voltage supplies.
Features
● For DC and AC voltage supplies
● Normally energised mode,
version D: normally
de-energised mode
● Insulation resistance display
● Fault memory or automatic reset
● Normal-/test operation
● External reset button and test
button can be connected
Release value 1.2 x response value
Max. measuring current (DC) 0.13 mA
Max. measuring voltage (DC) 22 V
Max. permitted external voltage (AC) ± 350 V
Min. impedance (AC/DC) 150 kW ± 10 %
Max. permitted line capacitance 1 µF
Max. fault response in accordance ± 15%
with VDE 0413-8, 05/89 at -5 ... +40 °C
Reaction time Approx. 25 s
Mechanical data
Max. cable cross section 2 x 2.5 mm
of external conductor Single-core or multi-core with crimp
Torque setting for connection screws 1.2 Nm
Dimensions (H x W x D) 75 x 90 x 115 mm
Weight 570 g
DC1: 24 V/0.1 ... 5 A/120 W
15 ... 100 kW, adjustable
2
connectors
4
Approvals
P1E-2NK
●
Description
The earth fault monitoring relay is
enclosed in a P-75 housing.
5 versions are available for AC
operation.
Features:
● Relay outputs:
2 auxiliary contacts (C/O)
● Two insulation measuring circuits
● Symmetrical insulation faults are
detected
● Test button for function checks
● LEDs for supply voltage and
switch status
The unit measures the insulation
resistance between the phases and
system earth. If insulation resistance
in one of the two measuring circuits
falls below the response value Ron,
the auxiliary contact changes state
and the LED fault switches on.
As soon as the insulation resistance
has increased to the release value
R
, the unit is ready for operation
off
immediately using automatic reset,
if manual reset is used, the reset
button must be pressed or the reset
circuit must be opened via an
external N/C contact.
NSG-D-2-225-05/00
Electronic Monitoring Relays
Earth fault monitoring
P1E-2NK
Internal wiring diagram
U
B
~
G1
P1E-2NK(/D)
=
Timing diagram
Measuring circuit
A2A3 A1
R
P
+
S2
TBTB
Test circuit
U
B
B1 B2
R
F1
aRE
E
Reset circuit
RB RB
S1
R
S
P1E-2NK
1
P1E-2NK/D
1
121422 24
K1
K1
11 21
4
R
E
R
off
R
on
11 - 14
1
Reset
0
11 - 14
UBSupply voltage
RonResponse value
non-latching
latching
R
Release value
off
REInsulation resistance
NSG-D-2-225-05/00
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