Delta 28-299A Operations Instructions Page 17

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4.3.3 Inside Delta Installation, Externally Bypassed
Non-bypassed models have dedicated bypass terminals, which allow the MCD 500 to continue providing protection and
monitoring functions even when bypassed via an external bypass contactor. The bypass relay must be connected to the bypass
terminals and controlled by a programmable output configured to Run (see par. 4-1 - 4-9).
177HA502.11
M
3
6/T3
2/T1
5/L3
3/L2
1/L1
13
14
4/T2
E
KM1
KM1 F1
U1(1) U2(4)
V1(2)
V2(5)
W1(3) W2(6)
L2B
L1B
L3B
KM2
34
33
KM2
KM1 Main contactor
KM2 Bypass contactor
F1 Fuses (optional)
N
NOTE
The bypass terminals on MCD5-0245C are T1B, T2B, T3B. The
bypass terminals on MCD5-0360C - MCD5-1600C
are L1B,
L2B, L3B.
The fuses can be installed on the input side if required.
4.4 Current Ratings
Contact your local supplier for ratings under operating conditions not covered by these ratings charts.
All ratings are calculated at altitude of 1000 metres and ambient temperature of 40r C.
Electrical Installation MCD 500 Operating Instruction
16 MG.17.K3.02 - VLT
®
is a registered Danfoss trademark
44
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