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
WIRING DIAGRAM:
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 5 A
0.05 to 1 A 0.035 to 0.707 A 0.1 ohm 5 A 17 A
~
(+)5 to 100mA
~
(+)0.05 to 1A
0.5 to 10 A 0.35 to 7.07 A 0.01 ohm 15 A 55 A
~
(+)0.5 to 10A
0V
Hysteresis selection . . . . . . . . . . . 5 to 50% of input current
()0V
Repeat accuracy . . . . . . . . . . . . . . 2% at a constant ambient
Response time . . . . . . . . . . . . . . . . 100 ms On Make
200 ms On Break
Output Relay . . . . . . . . . . . . . . . . . SPDT Relay
Contact material . . . . . . . . . . . . . . AgCdO
0V
Maximum loading . . . . . . . . . . . . . 10 A AC resistive 1 A DC inductive
Maximum switching voltage . . . . . 250 VAC or DC
Relay maximum power rating . . . . 2500 VA 30W
4
Mechanical life of relay . . . . . . . . . 30 x 10 operations
5
Electrical life of relay . . . . . . . . . . . 2 x 10 at 2500 VA resistive load
Operating temperature . . . . . . . . . +14F to + 140F -10C to +60C
Note: Upon energization of the current control IR.T Series Relay,
Weight . . . . . . . . . . . . . . . . . . . . . . 7 oz. (200g)
the time delay, which is adjustable from .1 to 10 seconds, inhibits
Option: 24 VDC power - the voltage and the measured current must be
the output relay during start-up periods. The delay time is adjustable
from separate sources.
via a potentiometer located on the side of the case. Applies to both
Note: It is recommended that the unit be adequately fused. versions, with and without latching.
ORDERING INFORMATION:
L IR.T 110A
MOUNTING SERIES INPUT POWER
MOUNTING
INPUT POWER
SERIES
D = DIN-rail mounting
24D = 24VDC
IR.T
L = 11 pin plug-in
24A = 24VAC
48A = 48VAC
110A = 110VAC
220A = 220VAC
Products and specifications subject to change without notice.
Order/Technical Support Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
2/88CONTROLS CONTROLS
IAR.T SERIES
CURRENT CONTROL RELAY
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
2
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%.
SPECIFICATIONS:
Input . . . . . . . . . . . . . . . . . . . . . . . . . . 24 VDC, 24, 48, 110, 220 VAC
WIRING DIAGRAM:
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
4
Mechanical life of relay . . . . . . . . . . . 30 x 10 operations
5
Electrical life of relay . . . . . . . . . . . . . 2 x 10 at 2500 VA resistive load
Operating temperature . . . . . . . . . . . . +14F to +140F -10C to +60C
Weight . . . . . . . . . . . . . . . . . . . . . . . . . 7 oz. (200g)
Note: Upon energization of the current control IAR.T Series
TRANSFORMER: (Part Number 74 525 305)
Relay, the time delay, which is adjustable from .1 to 10 seconds,
Current
inhibits the output relay during start-up periods. The delay time is
Range: 5 to 100 A RMS
adjustable via a potentiometer located on the side of the case.
For additional current transformer see Accessories section:
L595 Series. Page 2/99
Maximum
Overload: 1 max = 150 A
ORDERING INFORMATION: L IAR.T 110A
MOUNTING SERIES INPUT POWER
INPUT POWER
24D = 24VDC 48A = 48VAC
MOUNTING
SERIES
24A = 24VAC 110A = 110VAC
D = DIN-rail mounting
IAR.T
220A = 220VAC
L = 11 pin plug-in
Products and specifications subject to change without notice.
Order/Technical Support Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
2/89