12 rt-3 unit relay (pa relay type) slim, space-saving relay terminal for 4-point output features ? 33 mm 1.299 inch wide space-saving type, with four independent points on a base measuring 33 67 mm 1.299 2.638 inch . contributes to con- trol panel and device downsizing. ? equipped with pa relays with high- sensitivity twin contacts and au-cald- ding. equipped with 5 mm .197 inch wide pa relays. the pa relays feature high sensi- tivity (12 v type: 120 mw, 24 v type: 180 mw) and twin contacts with au-cladding, which combine to ensure high reliability even with minute loads. ? can be used mounted on a din rail or mounted directly (by screw). ? equipped with an led display to al- low easy con?rmation of operation. ? incorporates a surge absorber. incorporates an absorber circuit for coil surges. this protects the circuitry of the controller and prevents operation errors. ? relay installation and removal can be easily accomplished with the removal key accessory. ? includes a cover as standard equip- ment for increased safety. types notes: 1. cannot be equipped with power photomos standard type relays. however, equipping with voltage sensitive type of power ph otomos relays (aqz mmm d) is possible. 2. 5 v dc units are also available. please consult us. type rated input voltage part no. packing quantity inner carton outer carton pa relay 12 v dc RT3S-12V 10 pcs. 100 pcs. 24 v dc rt3s-24v ratings 1. input ratings (per pa relay) 2. relay coil speci?cations (per pa relay) (ref. value) 3. output ratings (per pa relay) part no. rated input voltage input current (at rated input voltage, 20 c 68 f ) (approx.) allowable variation of rated input voltage (C20 to +55 c C4 to +131 f ) RT3S-12V 12 v dc 11.5 ma (relay 10 ma + led 1.5 ma) 12 v dc 10% rt3s-24v 24 v dc 10.5 ma (relay 7.5 ma + led 3 ma) 24 v dc 10% relay part no. rated coil voltage pick-up voltage (at 20 c 68 f ) (initial) drop-out voltage (at 20 c 68 f ) (initial) 10% coil resistance ( 10%) (at 20 c 68 f ) rated comsumption power pa1a-12v 12 v dc less than 70% of nominal voltage more than 5% of nominal voltage 1,200 w 10% 120 mw pa1a-24v 24 v dc 3,200 w 10% 180 ma speci?cation item performance contact rating rated control capacity (resistive load) 2 a 250 v ac, 2 a 30 v dc maximum allowable contact power (resistive load) 500 va (ac), 60 w (dc) maximum allowable contact voltage 250 v ac, 30 v dc maximum allowable contact current 2 a minimum load (ref. value) 100 mv 100 m a expected life (min. operations) electrical (resistive load) 10 5 : 2 a 250v ac 10 5 : 2 a 30v dc 3 10 5 : 1 a 250v ac 3 10 5 : 1 a 30v dc mechanical (at 180 cpm) 2 10 7
rt-3 13 performance notes: 1. the value of breakdown voltage and insulation resistance is the initial one. 2. condensing occurs when the unit relay is exposed to sudden temperature change in a high temperature and high humidity atmosph ere. this may cause some troubles like insulation failure of the socket or the print circuit board. take care under this condition 3. below 0 c 32 f , condensing water can freeze and cause socket contact failures and other problems. take care under this condition. item performance breakdown voltage between input and output 2,000 vrms for 1 min. between different terminals (between relays, both ways) 1,500 vrms for 1 min. insulation resistance min. 100 m w (using 500 v dc megger) vibration resistance destructive 10 to 55 hz at double amplitude 1 mm .039 inch functional 10 to 55 hz at double amplitude 1 mm .039 inch shock resistance destructive min. 196 m/s 2 {20g} functional min. 98 m/s 2 {10g} ambient temperature C20 c to +55 c C4 f to +131 f ambient humidity 35% to 85% r.h. (not condensing) storage temperature C30 c to +80 c C22 f to +176 f (not freezing and condensing) terminal screw fasten torque 0.3 to 0.5 nm {3 to 5 kgfcm} coil surge absorber diode (1 a, 400 v) cross connection protecting diode 1.5 a, inverse voltage 40 v weight approx. 100 g 3.53 oz data 1. maximum value for switching capacity per re- lay (output) 2. life curve per relay (output) 0.2 0.3 0.4 0.5 1.0 4.0 3.0 2.0 20 30 50 100 200 300 contact voltage, v contact current, a resistive ac load resistive dc load 10 20 30 50 100 0.5 1.0 2.0 3.0 switching current, a no. of operations, 10 4 30 v dc resistive load 250 v ac resistive load 125 v ac resistive load dimensions general tolerance 0.3 .012 7.4 .291 7.62 .300 6.2 .244 8.4 .331 r2.1 .083 4.2 + 0.3 - 0.1 .165 + .012 - .004 r3.7 .146 5.5 0.6 .217 .024 67 1 2.638 .039 33 0.6 1.299 .024 13.8 .543 4 .157 30 0.6 1.181 .024 32 1 1.260 .039 16-m3 .118 terminal screw input side output side 2-m4 .157 screw mounting position with cover removed internal schematic note: cannot be equipped with power photomos standard type relays. however, equipping with voltage sensitive type of power photomos re- lays (aqz mmm d) is possible. panel cutout 1 5 9 led1 13+ 16+ 12 led4 8 4 2 output terminal portion 6 3 7 led2 10 14+ input terminal portion 11 led3 15+ 30 0.1 1.181 .004 2-4.3 dia. or m4 2-.169 dia. or m.157 mm inch
rt-3 14 terminal block we recommend using wire-pressed terminals for connection to the terminal portion. ? applicable electrical wire 0.25 to 1.65 mm 2 .01 to .065 inch ? applicable wire-pressed terminals mm inch 3 min. .118 min. 5.6 max. .220 max. 4.5 min. .177 min. 4 .157 3 dia. min. .118 dia. min. 5.6 max. .220 max. 4.5 min. .117 min. 4 .157 accessories short circuit plate use when you want to bridge terminals. for the external dimensions, see the options section for 4-point unit relay (power photomos relay type). < with insulator > ay3802 < without insulator > ay3803 cautions for use 1. operating environment 1) keep the product as far way as possible from power cables, high tension equip- ment, power equipment, equipment with transmitting devices such as amateur ra- dios, or equipment which generates a large switching surge. 2) the main unit is made of resin; there- fore, do not use it in areas where it may come in contact with (or be exposed to) organic solvents such as benzine, thinner, and alcohol, or strong alkaline substanc- es such as ammonia and caustic soda. 3) do not use the product in areas where it may be exposed to ?ammable gases, corrosive gases, excessive dust, or mois- ture, or areas where it may be subjected to strong vibration or shock. 2. dropping if a unit is dropped be sure to check its ex- ternal appearance and characteristics be- fore using it. 3. installing and removing the module 1) firmly insert the module into the socket with the terminals going in the direction of the blade receptacles. 2) the module can be easily removed us- ing the removal key. (1) insert the removal key into the socket slots. (2) pull the removal key up to remove the module. 4. wiring and circuit con?guration 1) perform wiring according to the internal schematic. take care not to make any mistakes. 2) we recommend the use of wire- pressed terminals for connection to the terminal portion. 3) when the load is inductive, we recom- mend adding a diode or surge absorber at both ends of the load. 5. installation 1) perform mounting hole cutout accord- ing to the panel cutout drawings. 2) when installing the unit on a din rail, use the din rail locking lever on the side of the unit. installation is accomplished by simply ?tting the unit onto the rail and pressing gently. 3) to remove the unit from the din rail, use a ?at head screwdriver to pull out the din rail locking lever. 6. transporting and storage 1) if the product is subjected to extreme vibration while being transported, the re- lays may become detached, the lead may become bent, and the unit may become damaged. handle the inner and outer boxes with care. 2) if the product is stored in an extremely adverse environment, visible defects and deterioration of performance characteris- tics may result. we recommend the fol- lowing storage conditions. ? temperature: 5 to 30 c 41 to 86 f ? humidity: max. 60% r.h. ? environment: no hazardous sub- stances such as sulfurous acid gases and little dust. 7. when equipped with power photo- mos relay voltage drive type since the power photomos relay voltage drive type does not require the current- controlling resistance on the input side, it can be used together with pa relays on 4- point unit relays (pa relay types) or rt-2 relay terminals. when connecting power photomos relay voltage drive types, since it will be a close connection, it will be necessary to be careful of load currents. be sure to refer to the information given regarding load cur- rents and ambient temperature character- istics in the precautions given for use of rt-2 relay terminals. din rail locking lever din rail 1 2 3 first push in the din rail locking lever. hook the holders on the unit over the din rail. press the unit onto the din rail. 1 2 3 insert the tip of the flat head screwdriver into the slot in the din rail locking lever. move the screwdriver in the direction of the arrows, and pull out the lever. remove the unit from the din rail.
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