general purpose relay g7j 321 general purpose relay g7j ? ideal for 3-phase motor control applications and resistive and inductive loads. ? no contact chattering for momentary voltage drops up to 50% of rated voltage. ? withstands more than 4 kv be tween contacts that are of different polarity and between the coil and contacts. ? flame-resistant materials (u l94v-0) used for all insulation. ? push-to-test button on all models lets user check contact operation. ? class b coil insulation available. ordering information to order: select the part number and add the desired coil voltage rating (e.g., g7j-3a1b-b- ac100/120) . note: the g7j-b and g7j-t relays require a w-bracket for mounting. order the bracket separately below. to order a relay and bracket p acked together, add ?-w1? to the part number before the coil voltage su ffix. for example, g7j-2a2b-b-w1-ac100/120. consult omron for available versions. accessories typical applications ? compressors for air conditioners and heater switching controllers. ? switching controllers for power tools or motors. ? lamp controls, motor drivers, and power supply switching controll ers in copy machines, facsimile machines, and other office equ ipment. ? power controllers for packers or food processing equipment. ? power controllers for inverters. specifications contact data type contact form model quick-connect terminal screw terminal pcb terminal pcb mounting 4pst-no ? ? g7j-4a-p 3pst-no/spst-nc ? ? g7j-3a1b-p dpst-no/dpst-nc ? ? g7j-2a2b-p w-bracket (see note) 4pst-no g7j-4a-t g7j-4a-b 3pst-no/spst-nc g7j-3a1b-t g7j-3a1b-b dpst-no/dpst-nc g7j-2a2b-t g7j-2a2b-b types applicable relays model w-brackets g7j-4a-b, g7j-3a1b-b, g7j-2a2b-b, g7j-4a-t, g7j-3a1b-t, g7j-2a2b-t r99-04-for-g5f load resistive load (p.f. = 1) no nc rated load 25 a, 220 vac (24 a, 230 vac), 25 a, 30 vdc 8 a, 220 vac (7.5 a, 230 vac), 8 a, 30 vdc rated carry current 25 a 8 a max. switching voltage 250 vac,125 vdc max. switching current 25 a 8 a max. switching capacity 5,500 va, 750 w dc 1,760 va, 240 w dc min. permissible load 100 ma, 24 vdc at 60 operations/minute, 23 c (73 f) ambient temperature)
322 general purpose relay g7j coil data ac dc note: 1. the rated current and coil resistance ar e measured at a coil temperature of 23 c (73 f) with tolerances of +15%/-20% for ac rated cur- rent and 15% for dc coil resistance. performance characterist ic data are measured at a coil temperature of 23 c (73 f). 2. the values given for ac rated current apply at 50 hz or 60 hz. characteristics note: 1. data shown are of initial value. 2. the contact resistance was measured with 1 a at 5 vdc using the voltage drop method. 3. the operate and release times were measured with the rated vo ltage imposed and with any contact bounce ignored at an ambient temperature of 23 c. 4. the insulation resistance was measured with a 500-vdc megger appli ed to the same places as those used for checking the dielectr ic strength. motor load coil voltage rated voltage (vac) rated current (ma) coil resistance ( ) must operate must release max. voltage power consumption % of rated voltage 23 c 24 24 75 ? 75% max. 15% min. 110% approx.1.8 50 50 36 ? to 2.6 va 100/120 100 to 120 18 to 21.60 ? 200/240 200 to 240 9 to 10.80 ? coil voltage rated voltage (vdc) rated current (ma) coil resistance ( ) must operate must release max. voltage power consumption % of rated voltage 12 12 167 72 75% max. 10% min. 110% approx. 2.0 w 24 24 83 288 48 48 42 1150 100 100 20 5000 110 110 18 6050 contact resistance 50 m max. operating time 50 ms max. release time 50 ms max. operating frequency mechanical 1,800 operations/hour max. electrical 1,800 operations/hour max. insulation resistance 1,000 m minimum at 500 vdc dielectric strength 4,000 vac, 50/60 hz for 1 minute between coil and contacts 4,000 vac, 50/60 hz for 1 minute between contacts of different polarity 2,000 vac, 50/60 hz for 1 minute between contacts of the same polarity impulse withstand voltage 10,000 v between coil and contact with 1.2 x 50 s impulse wave vibration mechanical durability 10 to 55 hz, 1.50 mm double amplitude malfunction durability no: 10 to 55 hz, 1.50 mm double amplitude nc: 10 to 26 hz, 1.50 mm double amplitude shock mechanical durability 1000 m/s 2 (approx. 100 g) malfunction durability no: 100 m/s 2 (approx. 10 g) nc: 20 m/s 2 (approx. 2 g) service life mechanical 1 million operations minimum at 1,800 operations/hour electrical (@ 23 c) 100,000 operations minimum at 1,800 operations/hour at rated load ambient temperature operating -25 to 60 c with no icing or condensation humidity operating 5% to 85% rh weight pcb terminal approx. 140 g screw terminal approx. 165 g quick-connect terminal approx. 140 g item g7j-4a-p, g7j-3a1b-p, g7j-4a-b , g7j-3a1b-b, g7j-4a-t, g7j-3a1b-t load 3 , 220 vac, 2.7 kw (with a inrush current of 78 a and a breaking current of 13 a) endurance electrical: 100,000 operations min.
general purpose relay g7j 323 engineering data n o contact ac resisti v e load (p.f. = 1) ac ind u cti v e load (p.f. - 0.4) n o contact dc resisti v e load n c contact dc resisti v e load n c contact ac resisti v e load (p.f. = 1) ac ind u cti v e load (p.f. - 0.4) 10 30 300 500 700 1,000 50 70 100 100 10 7 5 3 1 20 30 50 70 n c contact, 220 v ac n o contact, 220 v ac 5 01015202530 100 5,000 3,000 1,000 70 50 700 500 300 nu m b er of relays: 5 100 8 0 60 40 20 0 100 8 0 60 40 20 0 8 0 60 -40 40 -20 20 0 8 0 60 -40 40 -20 20 0 nu m b er of relays: 5 m u st-operate v oltage m u st-release v oltage m u st-operate v oltage m u st-release v oltage am b ient temperat u re ( c) am b ient temperat u re ( c) m u st-operate and reset v oltage ( % ) m u st-operate and reset v oltage ( % ) g7j 100 to 120 vac g7j 24 vdc 100 8 0 60 40 20 0 100 8 0 60 40 20 0 8 0 60 -40 40 -20 20 0 8 0 60 -40 40 -20 20 0 nu m b er of relays: 5 nu m b er of relays: 5 am b ient temperat u re ( c) am b ient tem p erat u re ( c ) coil temperat u re rise ( c) coil temperat u re rise ( c) g7j-4a 100 to 120 vac g7j-4a 24 vdc maximum switching capacity electrical service life switching voltage (v) switching current (a) switching current (a) life expectancy (x 10 3 operations) ambient temperature vs. must-operate and must-release voltage ambient temperature vs. coil temperature rise
324 general purpose relay g7j malfunctioning shock dimensions unit: mm relays pcb terminals with pcb mounting g7j-4a-p, g7j-3a1b-p, g7j-2a2b-p screw terminals (requires w-bracket for mounting) g7j-4a-b, g7j-3a1b-b, g7j-2a2b-b terminals u p w ards b u tton do w n w ards a1 do w n w ards 400 400 400 0 0 x x z z y y z z y y x x 400 400 400 200 200 b u tton u p w ards shock direction n ot energized energized a2 do w n w ards terminals do w n w ards unit: m/s 2 nu m b er of samples: 5 meas u rement conditions: increase and decrease the specified shock grad u ally imposed in x, y, and z directions three times each w ith the relay energized and not energized to check the shock v al u es that ca u se the relay to malf u nction. criteria: there m u st not b e any contact separation for 1 ms or greater w ith a shock of 100 m/s 2 imposed w hen the coil is energized or w ith a shock of 20 m/s 2 w hen the coil is not energized. 30 16 33.5 max. 1.4 6 1.5 51 max. 6.4 1.4 0. 8 51.5 max. 2 21 0.1 t w enty 1. 8 dia. 4 11.6 0.1 21.2 0.1 40.4 0.15 30. 8 0.15 11 0.1 t w o, 4.5 dia. or m4 35 0.1 4.3 43.2 2 51.5 max. 55.2 64 max. ten, m3.5 7.6 34.5 max. n ote: w - b racket is sold separately.
general purpose relay g7j 325 quick-connect terminals (requi res w-bracket for mounting) g7j-4a-t, g7j-3a1b-t, g7j-2a2b-t accessories w-bracket for g7j-b rel ays with screw terminals r99-04-for-g5f terminal arrangement ? internal connections 34.5 max. 30 2 16 43.2 54. 8 4.3 6.4 11.6 9.6 0. 8 10 51.5 max. 64 max. 35 0.1 t w o, 4.5 dia. or m4 n ote: w - b racket is sold separately. 35 0.1 24 44 4.4 30 7 9 29 35 2 8 t w o, 4.5 dia. mountin g holes t w o, 4.5 dia. or m4 14 24 34 44 a2 a1 43 33 23 13 a2 a1 42 41 34 33 24 23 14 13 a2 a1 42 41 32 31 24 23 14 13 g7j-4a-p(b)(t) g7j-3a1b-p(b)(t) g7j-2a2b-p(b)(t)
326 general purpose relay g7j approvals ul recognized (file no. e41643) / csa certified (file no. lr 35535) - - ambient temp = 40 c note: 1. the rated values approved by each of the safety standards may be different from the performance characteristics individually de fined in this catalog. 2. in the interest of product improvement, specif ications are subject to change without notice. 3. ce marking is provided only on non-pcb terminal versions vde (file no. 5381ug) note: add the suffix ?-km? to the model number when ordering. reference vde approval: en60255-1-00: 1997 en60255-23: 1996 kema (file no . 2001291.02) note: add the suffix ?-km? to the model number when ordering. reference kema approval: en60947-4-1 for contacts contact arrangement load type contact ratings normally open resistive 25 a, 277 vac, 30,000 cycles 25 a, 30 vdc, 30,000 general use 25 a, 120 vac, 30,000 cycles 25 a, 277 vac, 30,000 cycles 25 a, 240 vac, 100,000 cycles tungsten 1.5 kw, 120 vac, 6,000 cycles motor load 1.5 hp, 120 vac, 1,000 cycles 3 hp, 240/265/277 vac, 1,000 cycles 3-phase, 3 hp, 240/265/277 vac, 30,000 cycles 3-phase, 5 hp, 240/265/277 vac, 30,000 cycles 20 fla/120 lra, 120 vac, 30,000 cycles 17 fla/102 lra, 277 vac, 30,000 cycles tv tv-10, 120 vac, 25,000 cycles normally closed resistive 8 a, 277 vac, 30,000 cycles 8 a, 30 vdc, 30,000 cycles general use 8 a, 120 vac, 30,000 cycles 8 a, 277 vac, 30,000 cycles model coil ratings contact ratings no contact nc contact g7j-4a-b(p) (t) g7j-2a2b(p) (t) g7j-3a1b-b(p) (t) 6, 12, 24, 48, 100 vdc 24, 50, 100 to 120, 200 to 240 vac 25 a 240 vac cos = 0.4 25 a 240 vac cos = 1 25 a 30 vdc l/r 1 8 a 240 vac cos = 0.4 8 a 240 vac cos = 1 8 a 30 vdc l/r 1 model coil ratings contact ratings no contact g7j-4a-b(p) (t) (z) g7j-2a2b(p) (t) 200 to 240 vac class ac1: 25 a at 220 vac 11.5 a at 380 to 480 vac class ac3: 11.5 a at 220 vac and 8.5 a at 380 to 480 vac g7j-3a1b-b(p) (t) (z) 6, 12, 24, 48, 100 vdc 24, 50, 100 to 120, 200 to 240 vac
general purpose relay g7j 327 precautions handling ? to preserve performance, do not dr op or otherwise subject the g7j relay to shock. ? the case is not designated to be removed during normal handling and operation. doing so may affect performance. ? use the power relay in a dry environment free from excessive dust, so 2 , h 2 s, or organic gas. ? do not allow a voltage greater than the maximum allowable coil voltage to be applied continuously. ? do not use the relay outside of specified voltages and currents. ? do not allow the ambient operation temperature to exceed the specified limit. microloads the g7j is used for switching power loads. do not use the g7j for switching minute loads, such as signals. installation although there are not specific limits on the installation site, it should be as dry and dust-free as possible. pcb terminal-equipped relays weigh approximately 140 g. be sure that the pcb is strong enough to support them. omron recom- mends dual-side through-hole pcbs to reduce solder cracking from heat stress. mount the g7j with its test button facing downwards. the relay may malfunction due to shock if the test button faces upwards. be careful not to press the test button by mi stake, because the contacts will actuate (on) if the test button is pressed. if the normal mounting direction is not used, carbides or powder from contact abrasion that results fr om load switching will accumulate inside the relay. if the relay is used past its endurance in this state, insulation failure between circuits of different polarity or relay burning may occur. be sure to use the test button for test purposes only. the test button is used for relay circuit tests, such as a circuit continuity test. do not attempt to switch the load with the test button. if a voltage is applied to the coil, the test button will retract in an on state (i.e., an excited state). soldering pcb terminals be sure to solder the pcb terminals manually only. in the case of automatic soldering, some flux may stick to the test button and the relay. as a result, the g7j may malfunction. cleaning pcb terminals pcb terminals have semi-sealed construction which prevents flux from penetrating into the relay base housing due to capillary action. this type of relay cannot be immers ed for cleaning. do not wash with any water or detergent. connection refer to the diagram below when connecting a wire to the screw ter- minals on g7j. allow suitable slack on leads when wiring, and do not subject the ter- minals to excessive forc e. tighten the screw terminals to a torque of 0.78 to 1.18 n-m. quick-connect terminals do not impose excessive external force on the g7j in the horizontal or vertical directions when insert ing the g7j to the quick-connect ter- minals or when removing the terminals from the g7j. do not attempt to insert or pull out more than one terminal at a time. m3.5 7 (0.276) 4.5 (0.177) 7.6 (0.299) 8.8 (0.346)
328 general purpose relay g7j coil internal circuit if a transistor drives the g7j, then check the leakage current and connect a bleeder resistor if necessary. ac operating coil the g7j incorporates a bridge rectifie r circuit in the ac coil versions that prevents contact chatter or dropout during a voltage drop. this circuit allows the relays to withstand, with no vibration or shock, volt- age drops to the coil of up to 50% of the rated coil voltage for one second maximum. if a triac, such as an ssr, drives the g7j, the g7j may not release. use a power mos fet in this case. dc operating coil as a rule, either a dc battery or a dc power supply with a maximum of 5% ripple must be used for the operating voltage for dc relays. before using a rectified ac supply, confirm that the ripple is not greater than 5%. ripple greater than this can lead to variations in the operating and reset voltages. as excessive ripple can generate pulses, the insertion of a smoothing capacitor is recommended as shown below. e max.:maximum ripple e min.:minimum ripple e mean:mean dc voltage value when driving the coil with a trans istor, check the leakage current and connect a bleeder resist or if necessary. a2 a1 a2 a1 % of ripple = e max. ? e min. x 100 e mean e min. e max. e mean dc fraction ripple rela y smoothing capacitor
general purpose relay g7j memo
general purpose relay g7j omron on-line global - http://www.omron.com usa - http://www.components.omron.com cat. no. x301-e-1b printed in usa omron electronic components llc 55 e. commerce drive, suite b schaumburg, il 60173 847-882-2288 09/11 specificat ions subject to change without notice all sales are subject to omron electronic components llc standard terms and conditions of sale, which can be found at http://www.components.omron.com/compon ents/web/webfiles.ns f/sales_terms.html all dimensions shown are in millimeters. to convert millimeters into inches, multiply by 0.0393 7. to convert grams into ounces, multiply by 0.03527.
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