plastic casing for quick
assembly onto support rail according to DIN EN 50 022 or for
screw mounting.
Operational Information
Within the A-ISOMETER IR140Y, a DC measuring voltage is
generated and the positive pole is connected to the system via the
terminals L1/L2. The negative pole is connected to ground via an
electronic circuitry and the terminals E (
) /KE. These connections
are monitored continuously. If one of these connections is
interrupted, the alarm LEDs flash and the alarm relay switches.
The measuring circuit is closed via ground faults between system
and ground. When the insulation value of the system falls below
the pre-set response value, the alarm LEDs "ALARM" illuminate
and the alarm relay switches. The alarm LEDs indicate either "AC
ground fault" or "DC ground fault".
If the ground fault indication is to be stored, the terminals LT1/LT2
have to be bridged by an external reset button (NC contact) or by
selecting "with fault memory" at the respective DIP switch on the
front plate. The memory can be reset by pushing the <TEST/
RESET> button located at the front plate or the external button
for a short period provided that the insulation resistance exceeds
the selected alarm response value by at least 25%.
By pushing the test button, the correct function of the measuring
circuit, the alarm LEDs and the alarm relay can be checked.
Note: Insulation faults on directly connected DC circuits are
indicated with an increased response sensitivity. The preset
response values apply to the pure AC system only. In order to
avoid complex system conditions, DC supplied components
should be isolated galvanically from the system to be monitored or
a BENDER A-ISOMETER IR140Y should be used.
Standards
The A-ISOMETER corresponds to the standards of DIN 57 413
Bl2/VDE 0413 T2/01.73, IEC 1557-8; 1995, prEN 50197-8: 1994,
ASTM F1207-89, UL508.
s
For Ungrounded (floating) AC systems
from AC 0 to 300 V
s
Adjustable set-point ranges available from:
- 1k ...20k - 10k ...200k - 0.5M ..5M s
Operation and alarm LEDs
s
Two voltage-free chage-over contacts
s
Connection monitoring
s
Fault memory, selectable
s
Test and reset button
s
UL / CSA listed, Meets VDE/IEC standards, CE mark
s
Meets IEC801-4, Class III EMC requirements
Dimension Diagram (mm/inch)
GROUND FAULT MONITOR
for Ungrounded AC Systems from 0...300V
IR140Y
A1 A2 L1 L2 KA LT1 LT2 PT
KE 11 12 14 21 22 24
ON
ALARM
TEST
RESET
RESET/-
k 200
10
+
-
~
A-ISOMETER®
Serie 140
k MONITOR
45 (1.77")
105 (4.13")
74
(2.9")
5 (0.2"
)
DIN Rail mounting as
per DIN EN 50 022
Q u a l i t y S y s t e m
C e r t i f i e d
I S O 9 0 0 1
VDE IEC
Page 1 of 4
1.1 - 10.1A / Jan 1997
Bender Industrial Products - 700 Fox Chase - Coatesville, PA 19320 - Toll-free: (800) 356-4266 - Fax: (610) 383-7100 Bender Industrial Products - 700 Fox Chase - Coatesville, PA 19320 - Toll-free: (800) 356-4266 - Fax: (610) 383-7100
Technical Data IR140Y
Insulation
Rated insulation voltage
AC 250 V
Rated impulse withstand voltage/
disturbance level
4 kV/3
Voltage test acc. to IEC 255
2 kV
Monitored System
Rated mains voltage U
N
- IR140Y-3
AC 40 ... 400 Hz, 0 ... 138 V
- IR140Y-4, IR140Y-40
AC 40 ... 400 Hz, 0 ... 300 V
- IR140Y-6, IR140Y-60
AC 40 ... 400 Hz, 0 ... 300 V
Supply Voltage
Supply voltage U
S
See ordering details below
Operating range U
S
AC 0.8 ... 1.15 x U
S
Alarm Relay
Switching components
2 voltage-free SPDT contacts
Rated contact voltage
AC 250 V/DC 300 V
Rated current
AC/DC 5 A
Limited breaking capacity
- AC 230 V and p.f. = 0.4
AC 2 A
- DC 110 V and L/R = 0.04 s
DC 0.2 A
Operating principle, selectable
N.D. or N.E. mode
Pre-set by factory
N.E. (Normally De-energized) mode
Testing Standards
Test of the Electromagnetic Compatibility (EMC):
Immunity against electromagnetic Interferences acc. EN 50082-
2:
ESD acc. to IEC 1000-4-2
severity degree 3
EM field acc. to IEC 1000-4-3
severity degree 3
Burst acc. to IEC 1000-4-4
severity degree 3
Surge acc. to draft of IEC 1000-4-5
severity degree 3
Impulse voltage and electrical disturbance test acc. to IEC 255:
Impulse voltage test acc. to IEC 255-5
class III
Electrical disturbance test acc. to IEC 255-5
class III
Emissions acc. to EN 50081-2:
Emissions acc. to EN 55011/CISPR11
class B
Mechanical tests
Shock resistance acc. to IEC 68-2-27
15 g/11 ms
Bumping acc. to IEC 68-2-29
40 g/6 ms
Vibration strength acc. to IEC 68-2-6 10 ... 150 Hz/0.15 mm - 2 g
Environmental Conditions
Ambient temperature, during operation
-10
°
C ... +55
°
C
Storage temperature range
-40
°
C ... +70
°
C
General Data
Operation class
continuous operation
Mounting
as desired
Type of connection
screw terminals
Wire cross section
- solid
14 AWG
- stranded
16 AWG
Rapid mounting
DIN EN 50 022
Protection class acc. to EN 60529
- Internal components
IP 30
- Terminals
IP 20
Type of casing
XM45
Flammability class
UL 94V-0
Weight approx.
1 lb
Model
Supply Voltage
Article #
U
S
IR140Y-3
AC 230 V
910 15
504
IR140Y-311
AC 24 V
910 15
505
IR140Y-312
AC 42 V
910 15
506
IR140Y-313
AC 90-132 V**
910 15
509
IR140Y-321*
DC 10.5-80 V**
910 15
508
IR140Y-4
AC 230 V
910 16
505
IR140Y-411
AC 24 V
910 16
525
IR140Y-412
AC 42 V
910 16
526
IR140Y-413
AC 90-132 V**
910 16
523
IR140Y-421*
DC 10.5-80 V**
910 16
513
IR140Y-6
AC 230 V
910 16
507
IR140Y-613
AC 90-132 V**
910 16
519
IR140Y-621*
DC 10.5-80 V**
910 16
515
IR140Y-40
AC 230 V
910 16
506
IIR140Y-4013
AC 90-132 V**
910 16
524
IR140Y-4021*
DC 10.5-80 V**
910 16
514
IR140Y-60
AC 230 V
910 16
508
IR140Y-6013
AC 90-132 V**
910 16
521
IR140Y-6021*
DC 10.5-80 V**
910 16
516
Ordering Details
Other supply voltages on request
* EMC not tested
**Absolute value of the voltage range
Model
Measuring voltage U
M
Measuring current I
M
Internal DC resistance/impedance
Max. admissible stray DC voltage
acc. to DIN VDE 0413
IR140Y-3
20 V
0.72 mA
28 k / 24 k 138 V
IR140Y-4
20 V
0.17 mA
120 k / 98 k 290 V
IR140Y-40
40 V
0.34 mA
120 k / 110 k 290 V
IR140Y-6
20 V
17
µ
A
1.2 M / 0.98 M 290 V
IR140Y-60
40 V
34
µ
A
1.2 M / 1.1 M 290 V
Measuring Circuit
Response Values
Model
Response value
Hysteresis
Response time
Response time
Response time
System leakage
R
ALARM
(R
E
=0k ,C
E
=1
µ
F) (R
E
=0.5xR
ALARM
,C
E
=1
µ
F)
(R
E
=R
ALARM
)
capacitance C
E
, max.
IR140Y-3
1 ... 20 k 25% for R
ALARM
0.5 s
0.8 s
0.9 s
20
µ
F
IR140Y-4
10 ... 200 k 25% for R
ALARM
0.5 s
0.8 s
0.9 s
20
µ
F
IR140Y-40
10 ... 200 k 25% for R
ALARM
0.5 s
0.8 s
0.9 s
20
µ
F
IR140Y-6
0.5 ... 5 M 25% for R
ALARM
1 s
2 s
5 s
10
µ
F
IR140Y-60
0.5 ... 5 M 25% for R
ALARM
1 s
2 s
5 s
10
µ
F Wiring diagram
Important Instructions
Only one insulation monitoring device may be used in each
interconnected system. Please check for correct system and supply
voltage.
The terminal KA must be connected by a separate wire to one phase
conductor (L1 or L2) of the system to be monitored. This KA connection
monitors the connections between the system being monitored and the
Ground Fault Monitoring Device. There must be a connection between
L1/L2/KA for connection monitoring (e.g. via the winding of the isolation
transformer). This function is disabled if L1/L2 or KE/ are bridged.
In order to check the proper connection of the device, it is recommended
to carry out a functional test using a genuine ground fault, e.g. via a
suitable resistance, before starting the operation.
When insulation and voltage tests are to be carried out, the device must
be isolated from the system for the test period. Electrical equipment
shall only be installed by qualified personnel in consideration of the
current national and local safety regulations.
IR140Y-..
Bender Industrial Products - 700 Fox Chase - Coatesville, PA 19320 - Toll-free: (800) 356-4266 - Fax: (610) 383-7100
A1 A2 L1 L2 KA LT1 LT2 PT
KE 11 12 14 21 22 24
ON
ALARM
TEST
RESET
RESET/-
k 200
10
Power On LED
+
-
~
Alarm LEDs, illuminate when the value
falls below the pre-set response value
and in case of interruption of the
connecting leads /KE or L1/L2
combined test and reset button,
short-time pressing (<1sek.) = Reset
long-time pressing (>2sek.) = Test
Potentiometer for the adjustment
of the response value R
ALARM
Dip-switch for the selection of the
operating principle of the alarm relay
and the latching properties in case of
fault alarm
without fault memory
Alarm relay in
N/C operation
with fault memory
Alarm relay in
N/O operation
U
S
see nameplate
PE
L1
L2
KA
L1
L2
LT1
LT2
PT
external test button
external reset button
for fault memory
11
12
14
21
22
24
Alarm relay with two
change-over contacts
If one of these fault indications occurs, the connections have to be
checked as
soon as possible.
For checking the measuring circuit, the BENDER A-ISOMETERs are
equipped with connection monitoring. The following fault indications are
possible:
Fault Indication
Alarm LED
Alarm relay
+
-
AC faults
x
x
x
DC faults L+
x
x
DC faults L-
x
x
Interruption /KE or L1/L2
o
o
x
o = flashing
x = continuous indication
Page 3 of 4
1.1 - 10.3A / Jan 1997
combined test and reset button
short-time pressing (< 1 sec.) = Reset
long-time pressing (> 2 sec.) = Test
Alarm Relay in
N.E. (normal energized mode)
Alarm Relay in
N.D. (normal de-energized mode) Page 4 of 4
1.1 - 10.4A / Jan 1997
Characteristic Curve IR140Y/IR140Y-.0
Right to modifications reserved
Response Sensitivity for DC ground faults
DC+
Y version, response value in center position
(midscale) (only relay)
DC+ (1 M ) the middle DIP switch for the response value
is activated
DC+
alarm LED + and relay
DC-
alarm LED - and relay
150
125
100
75
50
25
0
20
R
AN
(k )
U
N
(V)
DC+ (10k )
DC+
DC-