ntd / nta series ? ratings from 10a to 25a @ 24-280 vac ? scr output for heavy industrial loads ? ac or dc control ? zero-crossing (resistive loads) or random-fire (inductive loads) output product selection control voltage 10a 25a 3-32 vdc ntd2410 ntd2425 90-140 vrms nta2410 nta2425 18-36 vrms nta2410e nta2425e available options output specifications (1) description 10a 25a operating voltage (47-63hz) [vrms] 24-280 24-280 transient overvoltage [vpk] 600 600 maximum off-state leakage current @ rated voltage [marms] 0.01 0.01 minimum off-state dv/dt @ maximum rated voltage [v/sec] (2) 200 200 maximum load current (3) [arms] 10 25 minimum load current [arms] 0.15 0.15 maximum surge current (16.6ms) [apk] 120 250 maximum on-state voltage drop @ rated current [vpk] 1.6 1.6 thermal resistance juncti on to case (rjc) [c/w] 1.48 1.02 maximum i 2 t for fusing (8.3 msec) [a 2 sec] 60 260 minimum power factor (with maximum load) 0.5 0.5 obsolete
input specifications (1) description ntd24xx nta24xx nta24xxe control voltage range 3-32 vdc 90-140 vrms 18-36 vrms maximum turn-on voltage 3.0 vdc 90 vrms 18 vrms minimum turn-off voltage 1.0 vdc 10 vrms 4.0 vrms typical input current range @ 5 vdc ( @ 120 vrms for nta) 10 madc 10 madc 3 ma @ 24 vrms nominal input impedance see note(5) 10.6 ohm 9.0 ohm maximum turn-on time [msec] (4) 1/2 cycle 10 10 maximum turn-off time [msec] 1/2 cycle 40 40 general specifications description parameters dielectric strength, input/output/base (50/60hz) 3750 vrms minimum insulation resistance (@ 500 v dc) 10 9 ohm maximum capacitance, input/output 8 pf ambient operating temperature range -40 to 80 c ambient storage temperature range -40 to 125 c weight (typical) 3.0 oz (86.5 g) encapsulation thermally conductive epoxy terminals screw and saddle clamps furnished, unmounted recommended terminal screw torque range: 6-32 screws - 10 in/lbs. 8-32 & 10-32 scre ws - 20 in. lbs. (screws dry without grease) general notes 1) all parameters at 25c unless otherwise specified. 2) off-state dv/dt test method per eia/narm standard rs-443, paragraph 13.11.1 3) heat sinking required, for derating curves see page 2. 4) turn-on time for random turn-on versions is 0.02 msec (d c control models) 5) input circuitry incorporates active current limiter. 6) 24 vac control version available (use suffix e) obsolete
mechanical specifications terminal hardware furnished: 4 screws and 4 saddle clam p s thermal derate information agency approvals ul /cul e116 95 0 csa l r81 68 9 rev. 092 80 9 obsolete
obsolete
annex - enviromental information obsolete
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