Control Relays DataSheet 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 Control 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 Analog Control Signal A: 0-5 VDC Line Voltage B: 0-7 VDC 12: 48-140 Vrms C: 0-10 VDC 24: 180-280 Vrms D: 4-20 mA 48: 330-530 Vrms Series E: Internal Potentiometer BC 24 25 C F MC U Rated Current Product Type 25: 25 Amps Time Base Period Required for valid part number BC: Burst Fire Controller 50: 50 Amps F: 10 AC Cycles 90: 90 Amps L: 20 AC Cycles OUTPUT SPECIFICATIONS (voltage) Description 120 V 240 V 480 V 300-530 Operating Voltage (47-63Hz) Vrms 48-140 180-280 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/sec (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 I t for Fusing (8.3 msec) Asec 260 1620 6000 Do not forget to visit us at: www.crydom.com Copyright 2017 Crydom Inc. Specifications subject to change without notice.Control Relays DataSheet (1) INPUT SPECIFICATIONS Description DC Control Control Voltage Range (VDC) 8-32 VDC Input Current Range mA P1 28-30 VDC Nominal Input Impedance Ohms P3 30K Control Must Operate VoltageO VDC P3 5-32 Control Must Release VoltageOf VDC P3 0-4 Control Input Current mA P3 0-1.25 PLV Range Option A VDC P4 (2) 0-5 PLV Range Option B VDC 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 20-K 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 9 Minimum Insulation Resistance ( 500 VDC) 10 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) GENERAL NOTES (1) Voltages are reference to GND (Ground = 0 VDC) P2 (2) PLVI voltage can go up to max. supply voltage without damage Do not forget to visit us at: www.crydom.com Copyright 2017 Crydom Inc. Specifications subject to change without notice.