4.4 Minimum and Maximum Current Settings
The MCD 500's minimum and maximum full load current settings depend on the model:
In-line Connection
Inside Delta Connection
Model
Minimum
Maximum
Minimum
Maximum
MCD5-0021B
5 A
23 A
7 A
34 A
MCD5-0037B
9 A
43 A
13 A
64 A
MCD5-0043B
10 A
50 A
15 A
75 A
MCD5-0053B
11 A
53 A
16 A
79 A
MCD5-0068B
15 A
76 A
23 A
114 A
MCD5-0084B
19 A
97 A
29 A
145 A
MCD5-0089B
20 A
100 A
30 A
150 A
MCD5-0105B
21 A
105 A
32 A
157 A
MCD5-0131B
29 A
145 A
44 A
217 A
MCD5-0141B
34 A
170 A
51 A
255 A
MCD5-0195B
40 A
200 A
60 A
300 A
MCD5-0215B
44 A
220 A
66 A
330 A
MCD5-0245C
51 A
255 A
77 A
382 A
MCD5-0360C
72 A
360 A
108 A
540 A
MCD5-0380C
76 A
380 A
114 A
570 A
MCD5-0428C
86 A
430 A
129 A
645 A
MCD5-0595C
124 A
620 A
186 A
930 A
MCD5-0619C
130 A
650 A
195 A
975 A
MCD5-0790C
158 A
790 A
237 A
1185 A
MCD5-0927C
186 A
930 A
279 A
1395 A
MCD5-1200C
240 A
1200 A
360 A
1800 A
MCD5-1410C
282 A
1410 A
423 A
2115 A
MCD5-1600C
320 A
1600 A
480 A
2400 A
Table 4.17
4.5 Bypass Contactor
MCD 500 soft starters with model numbers MCD5-0021B - MCD5-0215B are internally bypassed and do not require an
external bypass contactor.
MCD 500 soft starters with model numbers MCD5-0245C - MCD5-1600C are not internally bypassed and may be installed
with an external bypass contactor. Select a contactor with an AC1 rating greater than or equal to the full load current rating
of the connected motor.
4.6 Main Contactor
A main contactor must be installed if the MCD 500 is connected to the motor in inside delta format and is optional for in-
line connection. Select a contactor with an AC3 rating greater than or equal to the full load current rating of the connected
motor.
4.7 Circuit Breaker
A shunt trip circuit breaker may be used instead of a main contactor to isolate the motor circuit in the event of a soft
starter trip. The shunt trip mechanism must be powered from the supply side of the circuit breaker or from a separate
control supply.
Electrical Installation
MCD 500 Operating Instruction
MG17K402 - VLT
®
is a registered Danfoss trademark
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