ABB MD21 User Manual

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13. Appendix A: Technical data
Main circuit
Rated operation voltage (U
e
) up to 400/690VAC
Rated insulation voltage (U
i
) 690VAC
Rated impulse withstand voltage (U
imp
) 6KV, overvoltage category II in IT network, Category III in other networks.
Degree of pollution 3
Rated operation current (I
e
) 0.24-63A
Rated frequency 50/60Hz
Control circuit
Rated operational voltage (U
e
) 24V DC ,110 or 240 VAC
Rated insulation voltage (U
i
) -250VAC
Rate impulse withstand voltage 4kV for AC circuit
Rated operational current (I
e
)
Contactor control relay output
(CCA,CCB,CCC)
Digital output
2A /24VDC(DC-13)
4A/120VAC(AC-15)
2A/240VAC(AC-15)
Rated frequency 50/60 Hz
Response timing accuracy
TOL protection 5% of tolerance of tripping time
Stall protection 200 ~ 350ms
Earth fault protection -30~+30ms
PTC protection 400 ~ 500ms
Others 0 ~ 150ms
Power supply
Rated operational voltage (U
e
) 24VDC , 110 or 240VAC
Voltage operation range 85%-110% Ue
Power consumption
24VDC 110VAC 240VAC
Typical 5W 6VA 12VA
Maximum 8W
Maximum inrush current * 600ma
Digital input (DC)
Number of digital inputs 13 with one common connection
Logic 1 15…30V
Logic 0 0…5V
Digital input (AC)
Number of digital inputs 9 with one common connection
Logic 1 110VAC type, 79…110V 240VAC type, 164…240V
Logic 0 110VAC type, 0…20V 240VAC type, 0…40V
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Technical data
1 3 . A PP EN D I X A : T E C H N I C A L DATA 95

ABB MD21 Specifications

General

Brand	ABB
Model	MD21
Category	Control Unit
Language	English