“EK” suffix (“EK” Controls are input phase sensitive. Check all connections).
The AC power and motor connections are shown in Figure
1.Connect the incoming AC power wires from the protection devices to terminals A1, B1 and C1 of the 3% line reactor.
2.Connect A2, B2 and C2 3% line reactor terminals to the L1, L2 and L3 of the boost regulator.
3.Connect X1, X2 and X3 boost regulator terminals to X1, X2 and X3 of the control.
4.* Connect earth ground to the “” of the control. Be sure to comply with local codes.
5.Connect boost regulator terminals L1A, L2A and L3A to Filter terminals
6.Connect filter terminals
conductor of the proper size must be used as a ground conductor.
Figure 3-4 “EK” Control 3 Phase AC Power and Motor Connections (Size D, E & F)
| L1 | L2 | L3 | Earth |
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| L1 | L2 | L3 |
Note 1 | * Circuit |
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| Fuse |
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| Breaker |
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Note 2 |
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| A1 | B1 | C1 | A1 | B1 | C1 |
Note 3 | 3% Line |
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Reactor |
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| A2 | B2 | C2 |
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Note 2 |
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| L1 |
| X1 |
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| X2 |
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| Boost | L3 |
| X3 |
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Notes: | Regulator |
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| L1A | L2A | L3A |
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1. See “Protective Devices” described | Filter |
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previously in this section. |
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2. Shield wires inside a metal conduit. |
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| 1 | L1A |
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3. 3% Line Reactor is required at input. |
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| Phase Sensitive Inputs |
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| 2 | L2A | Series | |||
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| 3 | L3A |
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Control Size | Boost Regulator to | Filter to Control |
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Filter (5 ft. max.) | (10 ft. max.) |
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D & E | 14AWG (2.08 mm2) | 14AWG (2.08 mm2) |
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F | 10AWG (5.26 mm2) | 10AWG (5.26 mm2) |
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See Recommended Tightening Torques in Section 7. |
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MN722 | Receiving & Installation |