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MD-04 Circuit Breaker Operating Module

MD-04 Circuit Breaker Operating Module Model: MD-DC-48V-04 Abbreviation: MD-04 Dedicated module for China Southern Power Grid (CSG) bidding.

parameter	MD-04
Rated operating parameters
Rated operating cycle	O-0.3s-CO-15s-CO
Number of operations per hour	100
auxiliary voltage	DC48V
Auxiliary voltage range	80%-120%
Power consumption
Charging power consumption of switching capacitor	50W
standby power consumption	<4.6W
Time characteristics
***Capacitor charging time after power-on	<5s
Capacitor charging time after standard operating cycle	<5s
Insulation strength
Power frequency withstand voltage, 60s	2kV
Impact resistance, 40µs/50µs/0.5 J (IEC 60 255-5)	5kV
Insulation resistance, 1000V or 2000VDC	>5MΩ
Relay node
Relay node breaking capacity	250V AC 16A, 250V DC 0.15A
Dry node of opening and closing operation
Time to receive opening and closing commands	>12ms
Control module dry joint fracture forging	24V
Electromagnetic compatibility
Electrical Fast Pulse Immunity, IEC6100-4-4 Class IV	4kV
Oscillation immunity, IEC61000-4-12 IEC60255-22-1, Level III	2.5 kV 1MHz, to ground; 1 kV 1MHz, between terminals
Surge immunity, IEC61000-4-5, Class IV	4 kV 1.2/50us, to ground; 2 kV 1.2/50us, between terminals.
Impulse magnetic field immunity, IEC61000-4-9, Class V	1000A/m