MCBC Series
• Microprocessor based burst-fire controller / SSR
• Ratings from 25A to 90A @ 48-530 VAC
• Low-voltage, current, or potentiometer control
• Output status indicator
• Separate output enable / disable control
• Two time-base periods available
• For use with resistive loads only
PRODUCT SELECTION
Line Voltage 25 A 50 A 90 A
40-140 VAC MCBC1225 MCBC1250 MCBC1290
180-280 VAC MCBC2425 MCBC2450 MCBC2490
300-530 VAC MCBC4825 MCBC4850 MCBC4890
AVAILABLE OPTIONS
OUTPUT SPECIFICATIONS (voltage)
Description 120 VAC 240 VAC 480 VAC
Operating Voltage (47-63Hz) [Vrms] 48-140 180-280 300-530
Transient Overvoltage [Vpk] 400 600 1200
Maximum Off-State Leakage Current @ Rated Voltage [mArms] 5 7 12
Minimum Off-State dv/dt @ Maximum Rated Voltage [V/µsec] (2) 200 200 200
OUTPUT SPECIFICATIONS (current)
Description 25 A 50 A 90 A
Maximum Load Current (3) [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 I² t 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
Control Voltage Range (VDC) 8-32
Input Current Range [mA] [P1] 28-30
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
PLV Range Option A [VD C][P4] (2) 0-5
PLV Range Option B [VD C][P4] (2) 0-7
PLV Range Option C [VDC][P4] (2) 0-10
PLV Range Option D [VDC][P4] (2) 4-20
Nominal Input Impedance Option A,B,C[ohms][P4] 20K
Nominal Input Impedance Option D [ohms][P4] 220
OUTPUT STATUS FUNCTIONS
Conditions LED
Initial Logic Supply On Flash Once
Load Voltage Missing / Load Open (w/control disabled) Flash Once Intermittenly
Load Voltage Missing / Load Open (w/control enabled)) Flash Twice Intermittently
Analog Input < Threshold Off
Analog Input < Threshold < max Varying On/Off
Analog Input > max On, Bright
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)
GENERAL NOTES
1) Voltages are reference to GND (Ground = 0 VDC) P2
2) PLVI voltage can go up to max. supply voltage without damage
MECHANICAL SPECIFICATIONS
THERMAL DERATE INFORMATION
WIRING DIAGRAM
OUTPUT VS ANALOG INPUT SIGNAL CURVES
AGENCY APPROVALS
E116949 Rev. 080212
ANNEX - ENVIROMENTAL INFORMATION
