Stulz EC Tower ECD 91 - Electrically Connecting the EC Tower to Junction Box 1

54 EN/01.2019/G22 © STULZ GmbH – all rights reserved
EC TOWER TECHNICAL MANUAL
7.8.3 Electrically connecting the EC Tower to junction box 1
Connections for size 1 - ECD/U 91 Connections for size 2 - ECD/U 181/251
EC
Towe r
51-5670-16 ECTower_Vorlage.indd 1 03.08.16 16:31
1
2
53 4
1
2
53 4
Procedure
1. Open the door of junction box 1 using the supplied triangular socket wrench.
2. Insert the electric cable into junction box 1 from below.
3. Connect the three phases as per the circuit diagram as follows:
- Phase 1 (T1, T2, T3) on master switch (Q01)
- N wire on master switch (Q01)
- PE conductor to PE rail (X0)
4. Secure the cables with the strain relief screw.
5. Close the door of junction box 1.
No. Description
1 EC Tower
2 Door of junction box 1
3 Terminal strip X0
4 Master switch Q01
5 Terminal strip X1