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: S1 The output relay is energized when the current (peak current on AC) over- hysteresis shoots the level selected on the potentiometer. It de-energizes when the Automatic Threshold current falls below the normal current by 5 to 50% or when input power Unlatching breaks. The hysteresis is controlled by a top mounted potentiometer and R its selection does not change the chosen current level. 5 2. AC Current Control With Latching: The output relay is energized when the current reaches the selected value S1 and stays latched. The contact between terminal B1 and B2 (or 11 and 9) S2 should be opened or input power to the device interrupted to reset. In this case, it is preferable to reduce the hysteresis 5%. Manual Threshold Unlatching SPECIFICATIONS: hysteresis Input . . . . . . . . . . . . . . . . . . . . . . . . 24 VDC, 24, 48, 110, 220 VAC R ±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 DIR-T LIR-T 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 (+)5 to 100mA~ (+)5 to 100mA – S1 S1 ~ (+)0.05 to 1A (+)0.05 to 1A (+)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 (+)0.5 to 10A (+)0.5 to 10A – (-)8v (–)0V 0V Hysteresis selection . . . . . . . . . . . 5 to 50% of input current Repeat accuracy . . . . . . . . . . . . . . ±2% at a constant ambient 6 5 7 A1 11 E1 E2 E3 Response time . . . . . . . . . . . . . . . . 100 ms On Make 4 8 200 ms On Break 3 9 R 2 10 Output Relay . . . . . . . . . . . . . . . . . SPDT Relay Memory S2 1 11 A2 12 14 B2 B1 M Contact material . . . . . . . . . . . . . . AgCdO Memory (-)8v 0V Maximum loading . . . . . . . . . . . . . 10 A AC resistive 1 A DC inductive S2 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 . . . . . . . . . +14°F to + 140°F -10°C to +60°C 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. 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