Dell 5600R OL HV-US, 5600W, K812N Strip 0.5 (1.5 cm) of insulation from the end of each incoming wire. CAUTION: , The following table lists AC contactors that can be used as backfeed protection devices.

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Installation |
5Insert the conduit through the wiring access entry and attach the conduit fitting to the panel.
Strip 0.5” (1.5 cm) of insulation from the end of each incoming wire.
CAUTION: If the UPS does not have an automatic protection device against current backfeed, Dell
recommends installing an external isolating device (see Figure 19). After the device is installed, you must add
a warning label with the following wording or the equivalent on the external AC contactor:
RISK OF VOLTAGE BACKFEED. Isolate the UPS before operating on this circuit, then check for hazardous
voltage between all terminals.
External Distribution Panel UPS
L/L1 L/L1
N/L2 N/L2
Legend
Coil Remote Switch
Magneto-Thermal Input Main Switch
AC Contactor ( see Table 1)
Neutral/L2
L1 Line Input
B
Q
T
N/L2
L/L1
B
QT
Figure 19. Typical External Isolating Device Installation
The following table lists AC contactors that can be used as backfeed protection devices.
Table 1. Backfeed Protection Devices
Manufacturer Type Rating
Tianshui 213 Electrical Apparatus Co., Ltd.
(E203071) GSC1(CJX4-d)-4011 220-240 Vac, 42 FLA
Moeller GMBH DILM(C)32-10 600 V, 40A
LS Industrial Systems Co., Ltd. (E108780) GMC(D)-32 600 Vac, 45A