SLD-230-ALE

SLD Series The SLD Series is designed to protect 3-phase equipment against PHASE UNBALANCE, PHASE LOSS, UNDER VOLTAGE and PHASE REVERSAL conditions. OPERATION With normal operating voltage present on all three phases in the proper phase sequence, the internal relay will energize (PICK-UP). When an incorrect phase sequence or phase loss occurs or the three-phase line voltages fall outside the preset unbalance or under voltage settings, the internal relay will de-energize (DROP-OUT). When all conditions return to normal, the relay will reset. The Adjustable Release Delay is provided to ignore momentary voltage fluctuations that cause nuisance tripping. Both Delta and Wye systems may be monitored. In Wye Systems, connections to neutral are not required. NOTE: When a phase is lost while the motor is running, a condition known as regeneration occurs where a voltage is induced into the open phase nearly equal in magnitude to the normal phase-to-phase voltage. The SLD series is designed to detect this condition when properly adjusted. STYLE "E" STYLE "A" IND. CONT. EQ. 496Y Phase & Under Voltage Monitor DIMENSIONS (INCHES) PHASE VOLTAGE MONITORS The SLD Series is UL Listed under UL File Number E55826. SPECIFICATIONS OPERATING VOLTAGE See Table Below TRANSIENT PROTECTION 1000 Volts For 8 mSEC RESET Automatic PHASE SEQUENCE ABC (will not operate CBA) PHASE UNBALANCE 2% to 10%, Adjustable RANGE INDICATORS LED STYLE "A" Glows When All Conditions Are Normal RESPONSE TIMES Operate Release 30 mSEC 0.1 to 20 SEC, Adjustable (on Under Voltage only); 100 mSEC on Phase Reversal and Unbalance TEMPERATURE RATING 32° to +131°F (0° to +55°C) -49° to 185°F (-45° to +85°C) Operate Storage STYLE "E" WIRING U.S. PATENT 4,331,995 NUMBER WEIGHT MODEL NUMBER 13.5 oz. OPERATING VOLTAGE UNDER VOLTAGE DROPOUT RANGE POWER REQUIRED HYSTERESIS SLD-120-ASA 120 VAC 95-115 Adj. 2.5 VAC SLD-230-ASA 208/240 VAC 185-230 Adj. 3 VA Max. 5.0 VAC SLD-380-ASA 380 VAC 315-390 Adj. 10 VAC SLD-440-ASA 440/480 VAC 370-460 Adj. SLD-120-ALE 120 VAC 95-115 Adj. 5 VAC SLD-230-ALE 208/240 VAC 185-230 Adj. SLD-380-ALE 380 VAC 315-390 Adj. 7 VA Max 10 VAC SLD-440-ALE 440/480 VAC 370-460 Adj. All voltage referenced are phase-to-phase. Diversified Electronics 800.727.5646 OUTPUT RATING ENCLOSURE SPDT, 10 Amp, Resistive @ 240 VAC 1/2 HP @ 240 VAC A DPDT, 5 Amps, Resistive; 345 VA, Inductive @ 240 VAC DPDT, 3 Amps, Resistive; 360 VA, Inductive @ 600 VAC E atcdiversified.com 161