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Power Cord Installation
SHOCK HAZARD The instrument requires a chassis ground connection through a
separate conductor. The AC mains must include an earth ground connection.
AC mains connections must be made by a qualified electrician who knows about 3-
phase mains circuits and all applicable safety standards and requirements.
In cases were the unit is not hardwired to the electrical system, a locking connector
scheme should be used such as UL 498, IEC 60309, or equivalent. Consult a local
electrician for the connector scheme appropriate for your region.
208V/30A examples:
https://www.grainger.com/product/HUBBELL-WIRING-DEVICE-KELLEMS-30-
Amp-Industrial-Grade-Locking-6C549
480V/30A examples:
https://www.grainger.com/product/HUBBELL-WIRING-DEVICE-KELLEMS-30-
Amp-Industrial-Grade-Locking-6C549
If attached, remove the safety cover from
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the unit.
Insert the terminated ends of the power
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cord through the strain relief of the safety
cover. The safety cover strain relief is
designed to accommodate both a wire
cable, or individual wires.
Do not tighten the strain relief until all
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wire connections are complete.
Attach the safety cove to the unit.
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Keysight RP7900 Series Operating and Service Guide
Attach the ring-terminated line wires to the AC
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mains terminals (U.S. color code shown). The bolt
diameter is M5.
Place the ring terminals between the star washers.
Connect the ground wire to the chassis stud below
the AC line filter assembly.
If provided, do not connect the neutral wire.
Tighten the terminal bolts to 23 in-lb (2.6 Nm).
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Note that on earlier units, the AC mains terminals
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have hex-nut terminal connections.
2 Installing the Instrument
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