MCTC Series
• Microprocessor based temperature controller / SSR
• R atings from 25A to 90A @ 48-530 VAC
• Direct J or K thermocouple input
• Voltage or current controlled setpoint
• S eparate output enable / disable control
• O pen thermo couple protection
• LE D status indicators
• O ptional 5Vdc output voltage for setpoint voltage
Reference
• For use with resistive loa ds 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] 712
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] 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 Junction 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 Current [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) 109 Ohm
Maximum Capacitance, Input/Output 10 pF
Ambient Operating Temperature Range -20 to 80°C
Ambient Storage Temperature Range -40 to 125 °C
Weight (typical) 3.0 oz (86.5g)
Encapsulation Ther ma lly 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
