Instructional Booklet
Fixed and Drawout Magnum Transfer Switches
Effective: March 2007 | Page 13 |
3.2.5 Drawout Mechanism
The drawout mechanism is described in detail in Section 6 (Figure 14).
Figure 14. Drawout Mechanism (Closed Transition Shown)
3.3 Voltage Selection Panel
3.3.1North American Voltage Selection (120, 208, 240, 480, and 600 V, 60 Hz)
The North American market voltage selection panel consists of
The voltage is selected by simply removing the wires from the default primary taps of both transformers and installing them on the primary taps for the desired voltage. Taps are provided for 120 to 600 Vac to satisfy any required North American market application voltage. The factory default position is 600 Vac.
Figure 16. North American Market Voltage Selection Terminals (Shown Connected to the 120 Vac Taps).
3.3.2International Voltage Selection (208, 220, 240, 380, 415, and 600 V 50-60 Hz).
The international market voltage selection panel is a
3.4 Logic Panel
The logic panel provides the intelligence and supervisory circuits which constantly monitor the condition of both the Source 1 and Source 2 power sources, thus providing the required intelligence for transfer operations (Figure 17). Detailed information is pre- sented in a separate document:
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Figure 15. Voltage Selection Panel
WARNING
WHEN CHANGING THE SELECTED VOLTAGE, THE POWER MUST BE REMOVED FROM THE TRANSFER SWITCH AND THE WIRES MUST BE MOVED ON THE TAPS OF BOTH TRANSFORMERS.
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