Single Unit Connections
Power Cable Connections
Output Connections
Single Load Connections
Multiple Load Connections
Remote Sense Connections
Additional Load Considerations - all Models
Additional Load Considerations - RP793xA, RP794xA
Power Cable Connections
An AC mains power cable is not provided with the unit.
Refer to the following table for the maximum current capacity requirements for each cable conductor.
If required by local electrical codes, install a fuse or circuit breaker between the ac mains and the unit.
Refer to the following table for current ratings.
Keep the AC mains cables as short as possible. The longer the cable, the greater the voltage loss due
to cable resistance.
The cable cross-section must be suitable for the maximum input current of the
instrument. The ground cable must have the same cross-section as the phase cable.
Safety agency requirements dictate that there must be a way to physically disconnect
the AC mains cable from the unit. A disconnect device, either a switch or circuit breaker
must be provided in the final installation. The disconnect device must be close to the
equipment, be easily accessible, and be marked as the disconnect device for this
equipment. It must meet the input ratings requirements listed in the following table.
Model UnitRating L1 I
max
L2 I
max
L3 I
max
RP7931A, RP7932A, RP7951A 5 kW- 200/208 VAC 19.5 A 19.5 A 19.5 A
RP7941A, RP7942A, RP7961A 5 kW- 400/480 VAC 9.5 A 9.5 A 9.5 A
RP7933A, RP7935A, RP7936A, RP7952A, RP7953A 10 kW - 200/208 VAC 39 A 39 A 39 A
RP7943A, RP7945A, , RP7946A, RP7962A, RP7963A 10 kW - 400/480 VAC 19 A 19 A 19 A
Either a delta-type or a Y-type AC mains distribution can be used, provided that the correct line-to-line
voltage is applied (see above). Do not connect the neutral wire on Y-type AC mains distribution. An
earth-ground to chassis-ground connection through a separate conductor must always be provided.
2 Installing the Instrument
66 Keysight RP7900 Series Operating and Service Guide
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