SONG CHUAN 821 Features Miniature 25A 250VAC Power Relays. UL, CSA and TUV approved. With and without quick terminals on top. Inductive load COS =0.7, 20A 250VAC, inrush 80A 250VAC, 400ms suitable for compressor load switching and HVAC applications. Comply with RoHS-Directive 2002/95/EC. Type List Terminal style Contact form Designation W (Quick terminal) 1A (SPNO) 821-W-1A-C P (PCB terminal) 1A (SPNO) 821-P-1A-C Ordering Information 821 1 - W - 2 1A - C 3 4 1. 821 -- Basic series designation 3. 1A -- Single pole normally open 2. W P -- With quick terminals -- With printed circuit board wiring terminals 4. C -- Dust cover Contact Rating Resistive load 25A 240VAC, 20A 30VDC Inductive load (cosF0.7) 20A 250VAC (Inrush 80A) Coil Rating (DC) Rated Rated current Coil resistance Max. continuous voltage p10 % at 23C p10 % at 23C (V) (mA) (7) 5 180 27.8 6 150 40 9 100 90 12 75 160 24 38 640 48 19 2560 Specification Contact material Contact resistance 154 AgSnO alloy (1) 50m7 Max. voltage Pick up Drop out Power consumption voltage(Max) voltage(Min) at 55C at 23C at 23C 120 % of 75 % of 10 % of rated rated rated voltage voltage voltage at rated voltage approx. 0.9W SONG CHUAN Operate time (1) Release time 20ms Max. (1) Insulation resistance 821 10ms Max. (1) Dielectric strength (1) Vibration resistance Shock resistance 100 M7 Min. (DC 500V) : AC 1200V , 50/60Hz 1 min. Between open contact Between contact and coil : AC 3600V , 50/60Hz 1 min. Operating extremes 1050Hz , amplitude 1.0 mm Damage limits 1050Hz , amplitude 2.0 mm Operating extremes 10G Damage limits 100G 10,000,000 operations Mechanical (frequency 18,000 operations/hr) Life expectancy 100,000 operations Electrical (frequency 1,200 operations/hr) Operating ambient temperature -25+55C (no freezing) Weight Approx. 27.3 g Note(1) initial value Safety Approval Certified UL CSA TUV File No. E88991 LR90143 R 09452438 Safety Approval Rating UL CSA TUV 25A 250VAC 25A 250VAC 25A 250VAC 20A 30VDC 20A 30VDC 20A 30VDC 1HP 125VAC 1HP 125VAC 20A 250VAC cosF 0.7 1-1/2HP 250VAC 1-1/2HP 250VAC 12A 250VAC cos F 0.4 TV-10 TV-10 155 SONG CHUAN 821 Outline Dimensions 821-W 31MAX (1.220) (1.201) 1.3 (0.031) (0.051) (0.728) 6.35 3.4 (0.250) 1.5 (0.134) 30.5MAX 4 (0.157) (0.012) 0.8 12 8.3 (0.327) 2.5 (0.031) (0.472) (0.031) 0.3 7.9 0.8 (0.098) 0.8 (0.311) 18.5MAX 12.2 (0.480) 0.3 (0.059) (0.012) 27.6 5 (0.197) (1.087) 4 3 1 2 10 (0.394) 22 (0.866) 821-P 31MAX 18.5MAX 30.5MAX (1.201) 3.7 0.8 (0.146) (0.728) (0.012) 0.3 (1.220) 1.3 (0.031) (0.051) 1.5 0.3 (0.059) (0.012) 27.6 3 1 2 12 4 (0.472) 5 (0.197) (1.087) 10 22 (0.394) (0.866) 3 1 2 12 4 27.6 (1.087) 10 1.8-4 (0.071) 156 22 (0.866) (0.394) (0.472) 5 PC Board Layout BOTTOM VIEW (0.197) Wiring Diagram BOTTOM VIEW SONG CHUAN 821 Engineering Data Coil temperature rise Coil temperature rise 60 100 90 50 Temperature rise () Temperature rise () 80 70 60 25A 50 20A 40 30 20 25A 40 20A 30 20 10 10 70 80 90 100 110 120 130 70 7 120 130 max 20 10 110 Operate time 24 avg 22 30VDC 240VAC 6 18 Time (ms) 10 100 28 26 Number of operations 90 Operate time/Release time Life expectancy 10 80 % of Nominal Coil Voltage (at 55) % of Nominal Coil Voltage (at 23) min 16 14 12 10 8 5 6 2 1 Release time max avg min 0 10 70 4 0 5 1 10 15 20 80 90 100 110 120 25 % of Nominal coil voltage (at 23) AC/DC resistive load/Switching current(A) -------- All specifications subject to change. Please contact Song Chuan for update. -------- 157