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  form 859-990514 solid-state relays data sheet page 1/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto in 1974, opto 22 introduced the first liquid epoxy-filled line of power solid-state relays (ssr). this innovation in ssr design greatly improved the reliability and reduced the cost of manufacturing. at that time, we also incorporated into our manufacturing process 100% testing of every relay produced under full load conditions. by 1978, opto 22 had i n d e x power series p series mp series z series overview page description 1 introduction 2 all models: general specifications 3 120/240 volt ac power series: general specifications 4 120/240 volt ac power series: surge current data, thermal data, and dimensions 5 480/575 volt ac power series: general specifications 6 120/240 volt ac power series plastic package (z series): general specifications 7 ac power printed circuit series: general specifications 8 dc switching series: general specifications application tips 9 heat sink calculation, duty cycle calculation 10 transformer loads, solenoid loads, and lamp loads 11 solid-state relays in series, lamp loads, heater loads 12 motor loads gained such a reputation for reliability that we were recognized as the world?s leading manufacturer of solid-state relays. through continuous manufacturing improvements and the same 100% testing policy established 22 years ago, opto 22 is still recognized today for the very high quality and reliability of its complete line of solid-state relays.
form 859-990514 solid-state relays data sheet page 2/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto ? 4,000 v optical isolation input to output ? zero voltage turn-on ? turn-on time: ? cycle maximum ? turn-off time: ? cycle maximum ? operating frequency: 25 to 65 hz (operates at 400 hz with six times off-state leakage) ? coupling capacitance input to output: 8 pf maximum ? dv/dt off-state: 200 volts per microsecond ? dv/dt commutating: snubbed for rated current at 0.5 power factor ? ul recognized ? csa certified ? ce component all models specifications
form 859-990514 solid-state relays data sheet page 3/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto ac power series - 120/240 volt opto 22 provides a full range of power series relays with a wide variety of voltage (110?575) and current options (3?45 amps). all power series relays feature 4,000 volts of optical isolation and have a high prv rating. specifications model number nominal ac l ine voltage nominal current rating (amps) 1 cycle surge (amps) peak nominal signal input resistance (o hms) signal pick-up voltage signal drop-out voltage peak repetit ive voltage maximum maximum output voltage drop off-state leakage (ma) maximum operating voltage range (volts ac) i 2 t rat ing t=8.3 (ms) isolation voltage q q q q jc* (c/watt) dissipation (watt s/ amp) 120d3 120 3 85 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 2. 5ma 12-140 30 4, 000v rms 11 1. 7 120d10 120 10 110 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 7 ma 12-140 50 4, 000v rms 1. 3 1. 6 120d25 120 25 250 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 7 ma 12-140 250 4, 000v rms 1. 2 1. 3 120d45 120 45 650 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 7 ma 12-140 1750 4, 000v rms 0. 67 0. 9 240d3 240 3 85 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 5 ma 24-280 30 4, 000v rms 11 1. 7 240d10 240 10 110 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 14 ma 24-280 50 4, 000v rms 1. 3 1. 6 240d25 240 25 250 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 14 ma 24-280 250 4, 000v rms 1. 2 1. 3 240d45 240 45 650 1000 3vdc (32v allowed) 1 vdc 600 1. 6 volt s 14 ma 24-280 1750 4, 000v rms 0. 67 0. 9 380d25 380 25 250 1000 3vdc (32v allowed) 1 vdc 800 1. 6 volt s 12 ma 24-420 250 4, 000v rms 1. 2 1. 3 380d45 380 45 650 1000 3vdc (32v allowed) 1 vdc 800 1. 6 volt s 12 ma 24-420 1750 4, 000v rms 0. 67 0. 9 120a10 120 10 110 33k 85 vac (280 allowed) 10 vac 600 1. 6 volt s 7 ma 12-140 50 4, 000v rms 1. 3 1. 6 120a25 120 25 250 33k 85 vac (280 allowed) 10 vac 600 1. 6 volt s 7 ma 12-140 250 4, 000v rms 1. 2 1. 3 240a10 240 10 110 33k 85 vac (280 allowed) 10 vac 600 1. 6 volt s 14 ma 24-280 50 4, 000v rms 1. 3 1. 6 240a25 240 25 250 33k 85 vac (280 allowed) 10 vac 600 1. 6 volt s 14 ma 24-280 250 4, 000v rms 1. 2 1. 3 240a45 240 45 650 33k 85 vac (280 allowed) 10 vac 600 1. 6 volt s 14 ma 24-280 1750 4, 000v rms 0. 67 0. 9 notes: q q q q jc* = thermal resist ance junction to base. m aximum junction temperature is 110c.
form 859-990514 solid-state relays data sheet page 4/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto surge current data thermal ra tings ac power series - 120/240 volt (continued) specifications: dimensional drawings time (seconds) time* (cycles) 3-amp peak amps 10-amp peak amps 25-amp peak amps 45-amp peak amps 0.017 1 85 110 250 650 0.050 3 66 85 175 420 0.100 6 53 70 140 320 0.200 12 45 60 112 245 0.500 30 37 50 80 175 160314067134 2 120 28 33 53 119 3 180 27 32 49 98 4 240 26 31 47 95 5 300 25 30 45 91 10 600 24 28 42 84 note: *60 h z .
form 859-990514 solid-state relays data sheet page 5/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto surge current data thermal ra tings dc series: the dc series delivers isolated dc control to large oem customers worldwide. ac series: the ac series offers the ultimate in solid-state reliability. all ac power series relays feature a built-in snubber and zero voltage turn-on. transient proof models offer self-protection for noisy electrical environments. dimensional drawings ac power series - 480/575 volt specifications model number nominal ac line voltage nominal current rating (amps) 1 cycle surge (amps) peak nominal signal input resist ance (ohms) signal pick-u p voltage signal drop-out voltage peak repetitive voltage maximum maximum output voltage drop off -state leakage (ma) maximum operating voltage range (volts ac) i 2 t rating t=8.3 (ms) isolation voltage q jc* (c/watt) dissipation (watts/amp) 480d10-12 480 10 110 1000 3vdc (32v allowed) 1 vdc 1200 3. 2 volts 11 ma 100-530 50 4, 000v rms 1. 2 2. 5 480d15-12 480 15 150 1000 3vdc (32v allowed) 1 vdc 1200 3. 2 volts 11 ma 100-530 50 4, 000v rms 1. 2 2. 5 480d25-12 480 25 250 1000 3vdc (32v allowed) 1 vdc 1000 1. 6 volts 11 ma 100-530 250 4, 000v rms 1. 3 1. 3 480d45-12 480 45 650 1000 3vdc (32v allowed) 1 vdc 1000 1. 6 volts 11 ma 100-530 1750 4, 000v rms 0. 67 0. 9 575d15-12 575 15 150 1000 3vdc (32v allowed) 1 vdc 1200 3.2 volts 15 ma 100-600 90 4,000v rms 1. 2 2. 5 575d45-12 575 45 650 1000 3vdc (32v allowed) 1 vdc 1000 1.6 volts 15 ma 100-600 1750 4,000v rms 0. 67 0. 9 not e: q jc* = thermal resistance junct ion to base. maximum junct ion temperature is 110c. time second time*** (cycles) 10-amp peak amps 15-amp peak amps 25-amp peak amps 45-amp peak amps 0.017 1 110 150 250 650 0.050 3 85 140 175 420 0.100 6 70 110 140 320 0.200 12 60 90 112 245 0.500 30 50 70 80 175 160405567134 2 120 33 49 53 119 3 180 32 47 49 98 4 240 31 43 47 95 5 300 30 40 45 91 1060028 354284 note: ***60 h z
form 859-990514 solid-state relays data sheet page 6/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto current vs. ambient ratings surge current data the z series employs a unique heat transfer system that makes it possible for opto 22 to deliver a low-cost, 10-amp, solid-state relay in an all-plastic case. the push-on tool-free quick-connect terminals make the z series ideal for high- volume oem applications. dimensional drawings ac power series - 120/240 volt plastic package (z series) specifications model nu mber nominal ac line volt age nominal cu rrent ratin g (amp s) 1 cycle surge (amp s) peak nominal signal input resistance (ohms) signal pick-up volt age signal drop-out volt age peak repetitive volt age maximum maximum output volt age dro p off-state leakage (ma) maximum operating volt age rang e (volts ac) i 2 t ratin g t=8.3 (ms) isolation volt age q jc* (c/watt) dissipation (watts/amp) z120d10 120 10 110 1000 3vdc (32v allowed) 1 vdc 600 1.6 volts 6 ma 12-140 50 4,000 v rms 41 z240d10 240 10 110 1000 3vdc (32v allowed) 1 vdc 600 1.6 volts 12 ma 24-280 50 4,000 v rms 41 notes: q q q q jc* = thermal resistance junction to base. maximum junction temperat ure is 110c. time second time*** (cycles) peak amp s 0.017 1 110 0.050 3 85 0.100 6 70 0.200 12 60 0.500 30 50 16040 2 120 33 3 180 32 4 240 31 5 300 30 10 600 28 note: ***60 h z
form 859-990514 solid-state relays data sheet page 7/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto model p240d4 surge current data dimensional drawings ac power - printed circuit package (p & mp series) specifications model mp240d4 model number nominal ac lin e voltage nominal current rating am p s 1 cycle surge (amps) pea k nominal signal input resistance (ohms) signal pick-up voltage signal drop-out voltage pea k repetitive voltage maximum maximum output voltage drop off-state leakage ma maximum operating voltage range (volts ac) i 2 t rating t=8.3 (ms) isolation voltage q q q q jc* c/ watt dissipation watts/amp mp120d2 or p120d2 120 2 20 1000 3vdc** (32v allowed) 1 vdc 600 1.6 volts 5 ma 12-140 2 4,000 v rms 20 1.2 mp120d4 or p120d4 120 4 85 1000 3vdc** (32v allowed) 1 vdc 600 1.6 volts 5 ma 12-140 30 4,000 v rms 6.5 1.2 mP240D2 or P240D2 240 2 20 1000 3vdc** (32v allowed) 1 vdc 600 1.6 volts 5 ma 24-280 2 4,000 v rms 20 1.2 mp240d4 or p240d4 240 4 85 1000 3vdc** (32v allowed) 1 vdc 600 1.6 volts 5 ma 24-280 30 4,000 v rms 6.5 1.2 mp380d4 380 4 85 1000 3vdc ** (32v allowed) 1 vdc 800 1.6 volts 5 ma 24-420 30 4,000 v rms 6.5 1.2 notes: q q q q jc* = thermal resistance junction to base. maximum junction temperature is 110c. ** = mp series 24 volts maximum. time second time* (cycles) 2-amp p or mp peak amps 4-amp p or mp peak amps 0.017 1 20 85 0.050 3 18 66 0.100 6 15 53 0.200 12 11 45 0.500 30 9 37 1608.531 21208 28 31807.527 42407 26 53006.525 10 600 6 24 note: *60 h z
form 859-990514 solid-state relays data sheet page 8/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto thermal ra tings power series specifications p series mp series dimensional drawings dimensional drawings dc switching series description dc60p or dc60mp dc200p or dc200m p dc60s-3 dc60s-5 operating volt age range 5-60 vdc 5-200 vdc 5-60 vdc 5-60 vdc forward voltage drop 1.5 volts at 3 amps 1.5 volts at 1 amp 1.5 volts at 3 amps 1.5 volts at 5 amps nominal current rating 3 amps 1 amp 3 amps 5 amps off-state blocking 60 vdc 250 vdc 60 vdc 60 vdc signal pickup volt age 3 vdc 32 volts* allowed 3 vdc 32 volts* allowed 3 vdc 32 volts allowed 3 vdc 32 volts allowed signal dropout volt age 1 vdc 1 vdc 1 vdc 1 vdc signal input impedance 1,000 ohms 1,000 ohms 1,000 ohms 1,000 ohms 1 second surge 5 amps 2 amps 5 amps 10 amps operating temp. range -40 c to 100 c -40 c to 100 c -40 c to 100 c -40 c to 100 c isolat ion voltage 4,000 v rms 4,000 v rms 4,000 v rms 4,000 v rms off-state leakag e 1 ma maximum 1 ma maximum 1 ma maximum 1 ma maximum package type p/mp series p/mp series power series power series note: *mp series maximum allowed control signal 24 vdc.
form 859-990514 solid-state relays data sheet page 9/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto heat sink calculation like all semiconductor devices, ssr current ratings must be based on maximum junction temperature. all opto 22 ssrs operate conservatively at maximum junction temperatures of 110 c. determining an adequate heat sink for a given ssr conducting a given current is very simple. note: thermally conductive grease must be used between the relay base and the heat sink. sample calculation given: 120-volt, 20-amp load 50 c ambient air choose model 120d25 ssr. calculate dissipation as: 20 amps x 1.3 watts per amp = 26 watts calculate temperature rise junction to ssr base as: 26 watts x 1.2 c per watt = 31.2 c calculate allowable temperature of heat sink by subtracting 31.2 c from 110 c allowable junction temperature: 110 c-31.2 = 78.8 c the heat sink is in a 50c ambient, therefore, allowable temperature rise on heat sink is: 78.8 c-50 c = 28.8 c if heat sink is allowed to rise 28.8 c above ambient, then the thermal resistance of the heat sink is simply the 28.8 c rise divided by the 26 watt. any heat sink having a thermal resistance less than 1.1 c per watt will be adequate. duty cycle calculation when solid-state relays are operated in an on/off mode, it may be advantageous to calculate the rms value of the current throug h the ssr for heat sinking or determining the proper current rating of the ssr for the given application. i rms = rms value of load or ssr t 1 = time current is on t 2 = time current is off i on = rms value of load current during on period i rms = (i on ) 2 x t 1 t 1 + t 2 tips applications
form 859-990514 solid-state relays data sheet page 10/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto transformer loads solenoid valve and contactor loads careful consideration should be given to the selection of the proper ssr for driving a given transformer. transformers are driven from positive saturation of the iron core to negative saturation of the core each ? cycle of the alternating voltage. large inrush currents can occur during the first ? cycle of line voltage when a zero voltage ssr happens to turn on during the positive ? cycle of voltage when the core is already in positive saturation. inrush currents greater than 10 times rated transformer current can easily occur. the following table provides a guide for selecting the proper ssr for a given transformer rating. all opto 22 ssrs are designed to drive inductive loads such as solenoid valves and electromechanical contactors. the built-in snubber in each ssr assures proper operation into inductive loads. the following table is a guide in selecting an ssr to drive a solenoid or contactor. tips (continued) applications control current calculation all opto 22 dc controlled ssrs have a control circuit consisting of 1000 ohms in series with an led. since 3 volts is required to turn on any ssr, the maximum current required is (3 volt - 1 volt) divided by 1000 ohms which equals 2.0 ma. the 1 volt is subtracted from the 3 volt signal because 1 volt is dropped across the led. for higher control voltages, an external resistor can be added in series with the control voltage to limit the control current. to limit the control current to 2 ma, calculate the external resistor r c = 500 (e c - 3) where e c = the control voltage. the dc control voltage range is 3?32 vdc. to calculate the control current for any voltage within the 3?32 vdc range, use the formula: e c - 1 1000 i c = where r c = zero. with a 5v control signal, i c = = 4 ma. 5 - 1 1000 120-volt coils ssr current rating solenoid contactor 2-amp 1-amp nema size 4 4-amp 3-amp nema size 7 240-volt coils ssr current rating solenoid contactor 2-amp 1-amp nema size 7 4-amp 3-amp nema size 7 120-volt transformers ssr model transformer p or mp 120d2 100 va z120d10 500 va 120d3 100 va p or mp 120d4 250 va 120d10 or 120a10 500 va 120d25 or 120a25 1 kva 120d45 2 kva 240-volt transformers p or mP240D2 200 va 7240d10 1 kva 120d3 200 va p or mp240d4 500 va 240d10 or 240a10 1 kva 240d25 or 240a25 2 kva 240d45 4 kva 480-volt transformers ssr model transformer 480d10-12 5-amp primary 480d15-12 5-amp primary
form 859-990514 solid-state relays data sheet page 11/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto solid-state relays in series in applications requiring greater current rating at higher voltage, two opto 22 ssrs may be operated in series for double the voltage rating. the built-in snubber in each ssr assures proper voltage sharing of the two ssrs in series. in the diagram below, two 240-volt, 45-amp ssrs are connected in series for operation on a 480-volt line. the control is shown with a parallel hook-up but it should be noted that a serial connection can also be implemented. lamp loads since all opto 22 ssrs are zero voltage switching, they are ideal for driving incandescent lamps because the initial inrush current into a cold filament is reduced. the life of the lamp is increased when switched by a zero voltage turn on ssr. the following table is a guide to selecting an opto 22 ssr for switching a given incandescent lamp. heater loads care should be taken in selecting a ssr for driving a heater load if the load is cycled on and off in a continuous manner as might occur in a temperature control application. constant cycling can cause thermal fatigue in the thyristor chip at the point where the chip bonds to the lead frame. opto 22 employs a thick copper lead frame for mounting the scr chips in the power series ssrs to eliminate thermal fatigue failures. in addition, opto 22 recommends operating any ssr at 75% rated current for cycling heater loads to ensure complete reliability. the following table is a guide to selecting the proper ssr for a given heater load. tips (continued) applications 120 volt lamps ssr current rating lamp rating 2-amp 100 watt 4-amp 400 watt 10-amp 1 kilowatt 25-amp 2 kilowatt 45-amp 3 kilowatt 240 volt rating ssr current rating lamp rating 2-amp 200 watt 4-amp 800 watt 10-amp 2 kilowatt 25-amp 4 kilowatt 45-amp 6 kilowatt nominal ssr current rating maximum recommended heater current 2-amp 1?-amp 4-amp 2?-amp 10-amp 7?-amp 25-amp 18-amp 45-amp 35-amp 10 480v 8-amp 10 480v 8-amp
form 859-990514 solid-state relays data sheet page 12/12 opto?22 ? 43044 business park drive ? temecula, ca 92590 ? phone: (909)695-3000 ? (800)321-opto ? fax: (909)695-3095 ? internet : www.opto22.com inside sales: (800)452-opto ? product support: (800)tek-opto ? (909)695-3080 ? fax: (909)695-3017 ? e-mail: support@opto22.com ? faxback: (800)474-opto single-phase reversing motor control three-phase motor control three-phase reversing motor control three-phase motors may be controlled by solid-state relays as shown. a third ssr as shown is optional, but not necessary. the control windings may be connected in series or parallel. care should be taken to ensure that surge current drawn by the motor does not exceed surge current rating of the ssr. three-phase reversing motor control can be implemented with four ssrs as shown in the connection diagram. the ssrs work in pairs with ssr1 and ssr3 operated for rotation in one direction and ssr2 and ssr4 operated for rotation in the reverse direction. the resistor r1 as shown in the connection diagram protects against line-to-line shorts if ssr1 and ssr4 or ssr3 and ssr2 are on at the same time during the reversing transition period. use the following table as a guide to the proper selection of an ssr for this application. the resistors are unnecessary if the control circuit is designed to ensure one ssr is off before the other ssr is on. 1.4 eac 10 x ssr full load rating 1.4 x 120 10 x 10 all products and/or company names throughout this datasheet are generally trademarks or registered trademarks of their respecti ve companies. tips (continued) applications the circuit diagram illustrates a typical 1 ? motor winding inductance and the phase shift capacitor can cause twice line voltage to appear across the open ssr. a 240-volt ssr should be used for a 120-volt line. during the transition period when one ssr is turned on and the other ssr is going off, both ssrs may be on. in this case, the capacitor may discharge through the two ssrs, causing large currents to flow, which may destroy the ssrs. the addition of rl as shown will protect the ssrs from the short circuit capacitor discharge current. calculate rl as: rl = example: 10 amp ssr 120 v ac line rl = = 1.7 ohm 240-volt 3 q q q q motors ssr model motor z240d25 1/3 hp z240d10 3/4 hp 240d10 3/ 4 hp 240a10 3/4 hp 240d25 2 hp 240a25 2 hp 240d45 3 hp 480-volt 3 q q q q motors ssr model motor 480d10-12 1-? hp 480d15-12 1-? hp opto 22 relay motor full load rating resistor for 120v line resistor for 240v line 3-amp 1.25-amp 4 ohm 50 w 8 ohm 50 w 10-amp 5-amp 1 ohm 100 w 2 ohm 100 w 25-amp 8-amp .5 ohm 100 w 1 ohm 100 w 45-amp 16-amp .25 ohm 150 w .5 ohm 150 w 15-amp 5-amp 1 ohm 100 w 2 ohm 100 w


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