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 . . . . . . . . . +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. Order/Technical Support – Tel: (800) 677-5311 / FAX: (800) 677-3865 / www.crouzet-usa.com 2/88 CONTROLS 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 . . . . . . . . . . . . +14°F to +140°F -10°C to +60°C 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