CONTROLS
CONTROLS
IR.T SERIES
CURRENT CONTROL RELAY
UL listed
CSA recognized
•
•
•
•
•
Automatic or Manual Control
Start-up Inhibit
Adjustable Hysteresis
Multiple Voltages
LED Relay Status Indicator
1. AC Current Control Without Latching:
The output relay is energized when the current (peak current on AC) over-
shoots the level selected on the potentiometer. It de-energizes when the
current falls below the normal current by 5 to 50% or when input power
breaks. The hysteresis is controlled by a top mounted potentiometer and
its selection does not change the chosen current level.
2. AC Current Control With Latching:
The output relay is energized when the current reaches the selected value
and stays latched. The contact between terminal B1 and B2 (or 11 and 9)
should be opened or input power to the device interrupted to reset. In this
case, it is preferable to reduce the hysteresis 5%.
SPECIFICATIONS:
Input
. . . . . . . . . . . . . . . . . . . . . . . . 24 VDC, 24, 48, 110, 220 VAC
±15%, 50/60 Hz
Power consumption
. . . . . . . . . . . 3 VA maximum
CONTROL RANGE
PERMITTED
OVERLOAD
DC
AC
INPUT
LESS THAN
CURRENT
CURRENT
RESISTANCE PERMANENTLY 1 sec Peak
5 to 100 mA 3.5 to 70.7 mA
1 ohm
1.5 V
5A
0.05 to 1 A 0.035 to 0.707 A 0.1 ohm
5A
17 A
0.5 to 10 A
0.35 to 7.07 A
0.01 ohm
15 A
55 A
Hysteresis selection
. . . . . . . . . . . 5 to 50% of input current
Repeat accuracy
. . . . . . . . . . . . . . ±2% at a constant ambient
Response time
. . . . . . . . . . . . . . . . 100 ms On Make
200 ms On Break
Output Relay
. . . . . . . . . . . . . . . . . SPDT Relay
Contact material
. . . . . . . . . . . . . . AgCdO
Maximum loading
. . . . . . . . . . . . . 10 A AC resistive 1 A DC inductive
Maximum switching voltage
. . . . . 250 VAC or DC
Relay maximum power rating
. . . . 2500 VA
30W
Mechanical life of relay
. . . . . . . . . 30 x 10
4
operations
Electrical life of relay
. . . . . . . . . . . 2 x 10
5
at 2500 VA resistive load
Operating temperature
. . . . . . . . . +14°F to + 140°F -10°C to +60°C
Weight
. . . . . . . . . . . . . . . . . . . . . . 7 oz. (200g)
Option:
24 VDC power - the voltage and the measured current must be
from separate sources.
Note:
It is recommended that the unit be adequately fused.
WIRING DIAGRAM:
(+)5 to 100mA ~
–
–
(+)0.05 to 1A ~
~
–
(+)0.5 to 10A
0V
(–)0V
0V
Note:
Upon energization of the current control IR.T Series Relay,
the time delay, which is adjustable from .1 to 10 seconds, inhibits
the output relay during start-up periods. The delay time is adjustable
via a potentiometer located on the side of the case. Applies to both
versions, with and without latching.
ORDERING INFORMATION:
L
MOUNTING
IR.T
SERIES
110A
INPUT POWER
MOUNTING
D
= DIN-rail mounting
L
= 11 pin plug-in
SERIES
IR.T
INPUT POWER
24D
24A
48A
110A
220A
= 24VDC
= 24VAC
= 48VAC
= 110VAC
= 220VAC
Products and specifications subject to change without notice.
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
2/88
CONTROLS
CONTROLS
IAR.T
CONTROL RELAY
SERIES
CURRENT
UL listed
CSA recognized
•
•
•
•
•
Automatic or Manual Control
Start-up Inhibit
Adjustable Hysteresis
Multiple Voltages
5 to 100 Amp RMS
The DIAR.T is a current control which is capable of sensing up to 100
Amps. If requires a stepdown transformer, T1 100. The transformer
has a 0.4˝ diameter center hole through which a current carrying lead
is routed. Automatic or manual unlatching is available in each unit.
1. AC Current Control Without Latching:
The output relay is energized when the AC current overshoots the
level selected on the potentiometer. It de-energizes when the current
falls below the selected current by 5 to 50% or when input power
breaks. The hysteresis is controlled by a top mounted potentiometer
and its selection does not change the chosen current level.
2. AC Current Control With Latching:
The output relay is energized when the current reaches the selected
value and stays latched. The contact between terminal B1 and B2 (or
11 and 9) should be opened or input power to the device interrupted
to reset. In this case, it is preferable to reduce the hysteresis 5%.
2
SPECIFICATIONS:
Input
. . . . . . . . . . . . . . . . . . . . . . . . . . 24 VDC, 24, 48, 110, 220 VAC
±15%, 50/60 Hz
Power consumption
. . . . . . . . . . . . . . 3 VA maximum
Hysteresis selection
. . . . . . . . . . . . . . 5 to 50% of input current
Repeat accuracy
. . . . . . . . . . . . . . . . . ±2% at a constant ambient
±5% with temperature variation
VDE 0435
Response time
. . . . . . . . . . . . . . . . . . 100 ms On Make
200 ms On Break
Output Relay
. . . . . . . . . . . . . . . . . . . . SPDT Relay
Contact material
. . . . . . . . . . . . . . . . . AgCdO
Maximum loading
. . . . . . . . . . . . . . . . 10 A AC resistive
1 A DC inductive
Maximum switching voltage
. . . . . . . . 250 VAC
30 VDC
Relay maximum power rating
. . . . . . 2500 VA
30 W
Mechanical life of relay
. . . . . . . . . . . 30 x 10
4
operations
Electrical life of relay
. . . . . . . . . . . . . 2 x 10
5
at 2500 VA resistive load
Operating temperature
. . . . . . . . . . . . +14°F to +140°F
-10°C to +60°C
Weight
. . . . . . . . . . . . . . . . . . . . . . . . . 7 oz. (200g)
WIRING DIAGRAM:
TRANSFORMER:
(Part Number 74 525 305)
Current
Range: 5 to 100 A RMS
Maximum
Overload: 1 max = 150 A
Note:
Upon energization of the current control IAR.T Series
Relay, the time delay, which is adjustable from .1 to 10 seconds,
inhibits the output relay during start-up periods. The delay time is
adjustable via a potentiometer located on the side of the case.
For additional current transformer see “Accessories” section:
L595 Series. Page 2/99
ORDERING INFORMATION:
L
MOUNTING
IAR.T
SERIES
110A
INPUT POWER
INPUT POWER
MOUNTING
D
= DIN-rail mounting
L
= 11 pin plug-in
SERIES
IAR.T
Products and specifications subject to change without notice.
24D
= 24VDC
24A
= 24VAC
48A
= 48VAC
110A
= 110VAC
220A
= 220VAC
Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
2/89
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