Inside Delta Installation, Internally Bypassed; Inside Delta Installation, Externally Bypassed - Danfoss VLT MCD 600 Operating Manual

VLT® Soft Starter MCD 600
Operating Guide
K1 Main contactor (strongly recommended)
K2 Bypass contactor
F1 Fuses or circuit breaker

5.9.3 Inside Delta Installation, Internally Bypassed

F1 K1
K1
Illustration 15: Wiring of an Inside Delta Installation
K1 Main contactor
F1 Fuses or circuit breaker

5.9.4 Inside Delta Installation, Externally Bypassed

Models MCD6-0590C~MCD6-1134C have dedicated bypass terminals, which allow the protection and monitoring functions of the
soft starter to work even when the soft starter is externally bypassed.
The bypass busbars are at the top of the unit and are labeled T1B, T2B, T3B.
Danfoss A/S © 2020.12
1/L1 2/T1
3/L2 4/T2
V1(2)
W1(3)
5/L3 6/T3
13
14
13, 14 Main contactor output
03, 04 Bypass contactor output
U1(1) U2(4)
M
V2(5)
3
W2(6)
13, 14 Main contactor output
Installation
AQ262141844215en-000401 / 175R1174 | 41