CONTROLS CONTROLS EI SERIES CURRENT CONTROL RELAY UL cUL listed 3 Product Types for Measurement Accuracy Under or Over Current - Selectable Space Saving 22.5mm Wide DIN-Rail / Surface Mount Three product types EIL (2 to 500 mA), EIH (.1 to 10A) and EIT (10 to 100A with current transformers) provide selectable over or under current control. AC/DC control without memory. When the value of the controlled current, either AC or DC, reaches the threshold displayed on the front face, the output relay change state at the end of time delay T1. Un AC/DC CONTROL WITH MEMORY It returns to the initial state instantly when the current drops below the hysteresis Unit power-up threshold, or when the power supply is disconnected. AC/DC control with memory. Controlled current When the value of the controlled current reaches the displayed threshold, the output relay Threshold I Hysteresis changes status at the end of time period T1 and remains locked in this position. To reset Hysteresis T2 T1 T2 T1 the memory function the auxiliary supply must be disconnected. UPPER function Over-current function (UPPER). The power-on time delay T2 prevents current peaks due to motor starting. Hysteresis Hysteresis Threshold I The delay on upward crossing of threshold T1 provides immunity to transients and other Controlled current T2 T1 T2 T1 interference, thereby preventing spurious triggering of the output relay. UNDER function memory Under-current function (UNDER). The power-on delay T2 prevents the occurrence of current troughs. The delay on AC/DC CONTROL WITHOUT MEMORY Un downward crossing of threshold T1 provides immunity to random dips, thereby preventing spurious triggering of the output relay. Unit power-up Note: In underload function, the absolute value of the hysteresis cannot be greater than the measurement range maximum. Controlled current Threshold I Hysteresis Hysteresis SPECIFICATIONS: T2 T1 T1 T2 UPPER function Input power . 24 VDC, 24, 110 to 230 VAC Controlled current 15%, 50/60 Hz Hysteresis Hysteresis Threshold I Power Consumption 3 VA T2 T1 T1 T2 Hysteresis Selection 5 to 50% of Displayed Threshold UNDER function Threshold Value . 10 to 100% of Measurement Range Setting Accuracy-Threshold 10% WIRING DIAGRAM WIRING DIAGRAM Repeat Accuracy . 0.1% with constant parameters EIL EIH EIT Voltage drift . 0.1% (10% of input voltage) ~ ~ Temperature drift 0.02% 11 Power up delay T2 1 s to 20 s, 30% 11 26 852 304 A1 11 M A1 11 M transformer Delay on threshold overrun T1 0.1 s to 3 s, 20% Output relay SPDT Relay E1 E2 E3 Contact Material . AgCdO E1 E2 E3 12 14 12 14 14 12 A2 14 12 A2 Maximum Loading . 8A AC resist Operating temperature to 140F, -20C to 60C ~ ~ Storage temperature -30C to 70C A1&A2 power supply A1&A2 power supply Weight . (140g) .17 DIMENSIONS: inches (mm) Types EIL EIH EIT (4.2) Inputs E1-M E2-M E3 M E1-M E2-M E3 M E1-M Measurement Sensitivity 2 to 10 to 50 to .01 to .5 to 1 to 10 to range 20 mA 100 mA 500 mA 1 A 5 A 10 A 100 A .14 Input 5 1 0.2 0.1 0.02 0.01 20 (3.5) resistance Note: 24VDC input power version.The input voltage and the measured current must be from separate sources. The negative poles of the auxiliary power supply and the measurement circuit are connected inside the unit (22.5) 2.84 (72) .20 PART NUMBER FOR ORDERING (5) .89 3.94 (100) Type EIL EIH EIT 2 tag connectors (6.35) Measurement 10 to 100 A range 2 to 500 mA 0.1 to 10 A with current .51 (.13) Supply voltage transformer Transformer 24 VDC 84 871 020 84 871 030 84 871 040 ref. 26 852 304 24 VAC 84 871 021 84 871 031 84 871 041 (20) (38) 48 VAC 84 871 022 84 871 032 84 871 042 1.50 .78 120 VAC 84 871 023 84 871 033 84 871 043 230 VAC 84 871 024 84 871 034 84 871 044 Current transformer 26 852 304 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 5-20 2.25 (57) 1.50 (39) 3.10 (78.5) 3.53 (89.7) 3.92 (99.3)