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) overshoots 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%.
S1
hysteresis
5
R
S1
S2
Manual
Unlatching
Threshold
SPECIFICATIONS:
hysteresis
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 104 operations
Electrical life of relay . . . . . . . . . . . 2 x 105 at 2500 VA resistive load
Operating temperature . . . . . . . . . +14°F to + 140°F -10°C to +60°C
Weight . . . . . . . . . . . . . . . . . . . . . . 7 oz. (200g)
R
WIRING DIAGRAM:
˜+
MOUNTING
LIR-T
(+)5 to 100mA
(+)0.05 to 1A
(+)0.5 to 10A
S1
(+)5
(+)5 to 100mA
100mA ~
–
(+)0.05
1A ~
(+)0.05 to 1A
–
(+)0.5 to 10A
(+)0.5
10A ~
–
0V
(–)0V
(-)8v
S1
6
5
E1 E2 E3
7
4
3
8
9
R
2
12 14 B2 B1
1
M A2
Memory
S2
11
10 Memory S2
(-)8v0V
˜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.
Note: It is recommended that the unit be adequately fused.
D = DIN-rail mounting
L = 11 pin plug-in
DIR-T
A1 11
Option: 24 VDC power - the voltage and the measured current must be
from separate sources.
ORDERING INFORMATION:
Automatic
Unlatching
Threshold
L
IR.T
110A
MOUNTING
SERIES
INPUT POWER
SERIES
IR.T
INPUT POWER
24D
24A
48A
110A
220A
= 24VDC
= 24VAC
= 48VAC
= 110VAC
= 220VAC
Products and specifications subject to change without notice.
Consult factory for application assistance.
204 Airline Drive, Suite 300, Coppell, Texas 75019 / Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com
5-21
Mouser Electronics
Authorized Distributor
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Crouzet:
DIRT110A LIRT110A LIRT220A DIRT220A DIRT24A DIRT24D LIRT24D LIRT24A DIRTSP82110A
DIRTSP8224D
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