mctc series ? microprocessor based temperature controller / ssr ? ratings from 25a to 90a @ 48-530 vac ? direct j or k thermocouple input ? voltage or current controlled setpoint ? separate output enable / disable control ? open thermocouple protection ? led status indicators ? optional 5vdc output voltage for setpoint voltage reference ? for use with resistive loads only product selection description 25 a 50 a 90 a 280 vac mctc2425 mctc2450 mctc2490 480 vac mctc4825 mctc4850 mctc4890 available options output specifications (voltage) description 240 vac 480 vac operating voltage (47-63hz) [vrms] 24-280 48-530 transient overvoltage [vpk] 600 1200 maximum off-state leakage current @ rated voltage [marms] 7 12 minimum off-state dv/dt @ maximum rated voltage [v/sec] 200 200 output specifications (current) description 25 a 50 a 90 a maximum load current [arms] 25 50 90 minimum load current [marms] 150 150 150 maximum surge current (16.6ms) [apk] 250 625 1200 maximum on-state voltage drop @ rated current [vpk] 1.6 1.6 1.6 thermal resistance juncti on to case (rjc) [c/w] 1.02 0.63 0.28 maximum i2t for fusing (8.3 msec) [a2sec] 260 1620 6000 minimum power factor (with maximum load) 0.5 0.5 0.5
input specifications (1) description dc control p1 voltage supply range (vdc) 8-32 p1 supply current range [ma] (2) 28-30 control nominal input impedance [ohms] [p3] 30k control must operate voltage "on"[vdc][p3] 5-32 control must release voltage "off" [vdc][p3] 0-4 control input cu rrent [ma][p3] 0-1.25 plvi range option a [vdc][p4] (3) 0.8-5 plvi range option b [vdc][p4] (3) 1-7 plvi range option c [vdc][p4] (3) 2-10 plvi range option d [ma][p4] (3) 4-20 nominal input impedance option a,b,c[ohms][p4] 20k nominal input impedance option d [ohms][p4] 220 output voltage [vdc][p5] 4.75-5.25 maximum output current [ma][p5] 10 general specifications description parameters dielectric strength, input/output/base (50/60hz) 4000 vrms minimum insulation resistance (@ 500 v dc) 10 9 ohm maximum capacitance, input/output 10 pf ambient operating temperature range -20 to 80c ambient storage temperature range -40 to 125 c weight (typical) 3.0 oz (86.5g) encapsulation thermally conductive epoxy terminals-power screws and saddle clamps furnished, unmounted terminals-control barrier strip screw terminals recommended terminal screw torque range: 8-32 screws -20 in. lbs.(screws dry without grase) output status functions description green led (setpoint) red led (output) initial logic supply on flash once flash once operating (to 85 % of set point) off on approaching setpoint off variable flashing at setpoint ( 5%) on slow flashing over setpoint (>5%) (4) flashing off short-cycle timing ("r" suffix only) flash 2x intermittently off open thermocouple flash 3x intermittently off general notes 1) voltages are reference to gnd (ground = 0 vdc ) p2 2) input current may vary with ?e option. 3) plvi voltage can go up to max. supply voltage without damage. 4) below setpoint for ?r? suffix
mechanical specifications wiring diagram thermal derate information
temperature vs setpoint input p4 agency approvals ul e116949 rev. 032111
annex - enviromental information
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